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{{Infobox spacecraft {{short description|A failed spacecraft mission to Mars}}
{{Use British English|date=May 2021}}
| Name = Fobos-Grunt
{{Use dmy dates|date=October 2019}}
| Organization = ]
{{Infobox spaceflight
| Major_Contractors = ], ]
| name = Fobos-Grunt
| Mission_Type = Orbiter, lander, sample return
| names_list = Phobos-Grunt<br/>Фобос-Грунт<br/>Phobos-Ground
| Launch = 02:16:02.871 ] (]),<br/>9 November 2011</br>20:16:02.871 ],<br/>8 November 2011
| image = Cebit 2011-fobos-grunt together with upper stage.jpg
| Launch_Vehicle = ]
| image_caption = Model of Fobos-Grunt spacecraft at the 2011 Paris Air Show
| Decay = 15 January 2012
| image_size = 300px
| Mission_Duration = 3 years (Planned) (Mission Fail)
| NSSDC_ID = 2011-065A
| Webpage =
| Mass = 13,200 kg with fuel<ref name=laspace_fobos_grunt_sent_to_baikonur/>
| Power =
| Orbital_elements =
| Semimajor_Axis =
| Eccentricity =
| Inclination =
| Orbital_Period =
| Apoapsis =
| Periapsis =
| Orbits =
}}


| mission_type = ] lander<br/>Sample return
'''Fobos-Grunt''' or '''Phobos-Grunt''' ({{lang-ru|'''Фобос-Грунт'''}}, literally '''Phobos-Ground''') was an attempted Russian ] to ], one of the moons of ]. Fobos-Grunt also carried the ] Mars ] ] and the tiny ] funded by the ].<ref name=amos>{{Cite news |url=http://www.bbc.co.uk/news/science-environment-15631472 |title=Phobos-Grunt Mars probe loses its way just after launch |work=BBC |author=Jonathan Amos |date=9 November 2011}}</ref>
| operator = ]
| COSPAR_ID = 2011-065A
| SATCAT = 37872
| website =
| mission_duration = 3 years (planned)<br/>Failed in Earth orbit


| spacecraft_type =
It was launched on 9 November 2011 at 02:16 local time (8 November 2011, 20:16 ]) from the ], but subsequent rocket burns intended to set the craft on a course for Mars failed, leaving it stranded in ].<ref name="noburn">{{cite web|url=http://www.satobs.org/seesat/Nov-2011/0069.html|title=Phobos-Grunt - serious problem reported|first=Ted|last=Molczan|publisher=SeeSat-L|date=9 November 2011|accessdate=9 November 2011}}</ref><ref name=vlad/> Efforts to reactivate the craft were unsuccessful, and it fell back to Earth in an uncontrolled ] on January 15, 2012, reportedly over ] west of ].<ref>, BBC News, 14 January 2012</ref><ref name="foxnews.com">{{cite news| url=http://www.foxnews.com/scitech/2012/01/15/russian-space-probe-to-crash-on-earth-within-hours/ | work=Fox News | title=Russian space probe crashes into Pacific Ocean | date=15 January 2012}}</ref><ref>, ''Daily Mail'', 18th January 2012</ref><ref>, msnbc.com, 17 January 2012</ref><ref>, ''Daily Mail'', 16th January 2012</ref>
| manufacturer = ], ]
| dry_mass = {{cvt|2300|kg}}
| launch_mass = {{cvt|13505|kg}} <ref name=laspace_fobos_grunt_sent_to_baikonur/>
| power = 1 ] (main orbiter/lander) + 300 W (Earth return vehicle) <ref name="galspace.spb.ru">{{cite web|url=http://galspace.spb.ru/index244.html|title=Конструкция АМС "Фобос-Грунт" |website=galspace.spb.ru|access-date=1 July 2018}}</ref>


| launch_date = 8 November 2011, 20:16:02 ]
Funded by the Russian space agency ] and developed by ] and the ], Fobos-Grunt was the first Russian-led interplanetary mission since the failed ]. The last ''successful'' Russian interplanetary missions were ] in 1985–1986, and the partially successful ] in 1988–1989.<ref>{{cite web|url=http://www.spaceref.com/news/viewsr.rss.html?pid=39079|title=Jonathan's Space Report No. 650 2011 Nov 16}}</ref> Fobos-Grunt was designed to become the first spacecraft to return a macroscopic sample from an extraterrestrial body since ] in 1976 (] returned microscopic grains of asteroid material in 2010).<ref name="universetoday_daring">{{cite news|url=http://www.universetoday.com/89845/daring-russian-sample-return-mission-to-martian-moon-phobos-aims-for-november-liftoff/|title=Daring Russian Sample Return mission to Martian Moon Phobos aims for November Liftoff|publisher=Universe Today|date=2011-10-13}}</ref> The return vehicle, carrying up to 200&nbsp;g of soil from Phobos, was to have returned to Earth in August 2014.
| launch_rocket = ]
| launch_site = ], ]
| launch_contractor = ]


| entered_service = Failed on orbit
==Project history==
| last_contact = 24 November 2011
===Development===
| decay_date = 15 January 2012, 17:46 UTC <ref name="space"/>
{{see also|Space industry of Russia}}
]
The Fobos-Grunt project began in 1999, when the ] and ], the main developer of Soviet and Russian interplanetary probes, initiated a 9 million ] feasibility study into a Phobos sample-return mission. The initial spacecraft design was to be similar to the probes of the ] program launched in the late 1980s.<ref name="harvey_fobos"/> Development of the spacecraft started in 2001 and the preliminary design was completed in 2004.<ref name="en.rian.ru"/> For years, the project stalled as a result of low levels of financing of the Russian space program. This changed in the summer of 2005, when the new government plan for space activities in 2006–2015 was published. Fobos-Grunt was now made one of the program's flagship missions. With substantially improved funding, the launch date was set for October 2009. The 2004 design was revised a couple of times and international partners were invited to join the project.<ref name="harvey_fobos">{{cite book|last=Harvey|first=Brian|title=The Rebirth of the Russian Space Program|publisher=Springer|location=Germany|year=2007|edition=1st|chapter=Resurgent - the new projects|pages=326–330|isbn=9780387713540}}</ref> In June 2006, NPO Lavochkin announced that it had begun manufacturing and testing the development version of the spacecraft's onboard equipment.<ref>{{cite news|url=http://en.rian.ru/science/20100909/160532461.html|title=Russia to test unmanned lander for Mars moon mission|author=|publisher=RIA Novosti|date=2010-09-09}}</ref>


| orbit_reference = ]<ref name="space">{{cite web|title=2011-065A – Fobos-Grunt|url=https://www.lib.cas.cz/space.40/2011/065A.HTM|work=Space 40|first=Antonín|last=Vítek|language=cs|date=25 January 2012|access-date=9 September 2018}}</ref>
On 26 March 2007, Russia and China signed a cooperative agreement on the joint exploration of Mars, which included sending China's first interplanetary probe, ], to Mars together with the Fobos-Grunt spacecraft.<ref>{{cite news|url=http://en.rian.ru/world/20081205/118704675.html|title=China to launch probe to Mars with Russian help in 2009|author=|publisher=RIA Novosti|date=2008-12-05}}</ref> Yinghuo-1 weighed 115&nbsp;kg (250&nbsp;pounds) and would have been released by the main spacecraft into a Mars orbit.<ref name="Popovkin" />
| orbit_regime = ]
| orbit_periapsis = {{cvt|207|km}}
| orbit_apoapsis = {{cvt|342|km}}
| orbit_inclination = 51.43°
| orbit_period = 90.0 minutes
| apsis = gee


| instruments_list = {{Infobox spaceflight/Instruments
===Skipped 2009 launch===
|acronym1 = GAP |name1 = Soil molecular composition analysis
The October 2009 launch date could not be achieved due to delays in the spacecraft development. During 2009, officials admitted that the schedule was very tight, but still hoped until the last moment that a launch could be made.<ref name="ASMp4">{{cite web|url=http://www.airspacemag.com/space-exploration/Mission_Possible.html?c=y&page=4|title=Mission Possible - A new probe to a Martian moon may win back respect for Russia's unmanned space program|last=Zak|first=Anatoly|date=2008-09-01|publisher=AirSpaceMag.com|accessdate=2009-05-26}}</ref> On 21 September 2009 the mission was officially announced to be delayed until the next launch window in 2011.<ref name="rian_delay">{{cite news|url=http://www.rian.ru/science/20090921/185905786.html|date=2009-09-21|title=Fobos-Grunt probe launch is postponed to 2011|publisher=RIA Novosti|language=Russian|accessdate=2009-09-21}}</ref><ref>{{cite web|title=Russia delays Mars probe launch until 2011: report|date=16 September 2009|url=http://www.marsdaily.com/reports/Russia_delays_Mars_probe_launch_until_2012_report_999.html|publisher=Space Daily}}</ref><ref name="preflight"/><ref name="spectrum_delay">{{cite web|url=http://spectrum.ieee.org/aerospace/space-flight/russia-to-delay-martian-moon-mission|title=Russia to Delay Martian Moon Mission|last=Zak|first=Anatoly|date=2009-04|publisher=IEEE Spectrum|accessdate=2009-05-26}}</ref> A main reason for the delay was difficulties encountered during development of the spacecraft's onboard computers. While the Moscow-based company Tehkhom provided the computer hardware on time, the internal NPO Lavochkin team responsible for integration and software development fell behind schedule.<ref name="zak_spacenews">{{cite news|url=http://www.spacenews.com/civil/industry-insiders-foresaw-delay-russia-phobos-grunt.html|title=Industry Insiders Foresaw Delay of Russia's Phobos-Grunt|publisher=Space News|date=2009-10-05}}</ref> The retirement of NPO Lavochkin's head Valeriy N. Poletskiy in January 2010 was widely seen as linked to the delay of Fobos-Grunt. Viktor Khartov was appointed the new head of the company. During the extra development time resulting from the delay, a Polish-built drill was added to the Phobos lander as a back-up soil extraction device.<ref name="zak_bbc_rebirth">{{cite news|url=http://www.bbc.co.uk/news/10414237|title=Difficult rebirth for Russian space science|publisher=BBC News|date=2010-06-29}}</ref>
|acronym2 = MDGF |name2 = ] ]
|acronym3 = MAIN |name3 = Neutron spectrometer
|acronym4 = Lazma |name4 = Mass spectrometer flight time
|acronym5 = MANAGA |name5 = ]
|acronym6 = THERMOFOB |name6 = Thermic probe
|acronym7 = RLR |name7 = ]
|acronym8 = Seismo-1 |name8 = ]
|acronym9 = MIMOS |name9 = Mössbauer spectrometer
|acronym10 = METEOR-F |name10 = ]s detector
|acronym11 = DIAMOND |name11 = Dust detector
|acronym12 = FPMS |name12 = ] analysis
|acronym13 = AOST |name13 = ]
|acronym14 = TIMM-2 |name14 = Solar occultation spectrometer
|acronym15 = MicrOmega |name15 = Spectral microscope
|acronym16 = TSNG |name16 = Cameras
}}
|programme = ]
| previous_mission = ]
| next_mission = ]
}}


'''Fobos-Grunt''' or '''Phobos-Grunt''' ({{langx|ru|link=no|Фобос-Грунт}}, where ''грунт'' refers to the ''ground'' in the narrow geological meaning of any type of soil or rock exposed on the surface) was an attempted Russian ] to ], one of the moons of ]. Fobos-Grunt also carried the Chinese Mars ] ] and the tiny ] funded by the ].<ref name=amos>{{cite news |last=Amos |first=Jonathan |title=Phobos-Grunt Mars probe loses its way just after launch |url=https://www.bbc.co.uk/news/science-environment-15631472 |publisher=] |date=9 November 2011}}</ref><ref name=Emily>{{cite work |last=Lakdawalla |first=Emily |authorlink=Emily Lakdawalla |title=Phobos-Grunt is no more |url=http://www.planetary.org/blog/article/00003331/ |publisher=] |date=16 December 2012 |archive-url=https://web.archive.org/web/20120119031611/http://www.planetary.org/blog/article/00003331/ |archive-date=19 January 2012}}</ref>
===2011 launch===
The spacecraft arrived at ] on 17 October 2011 and was transported to Site 31 for pre-launch processing.<ref name=russianspaceweb_phobos_grunt_arrives_to_baikonur></ref> The Zenit-2SB41 rocket carrying Fobos-Grunt successfully lifted off from Baikonur Cosmodrome at 20:16 UTC on 8 November 2011.<ref>{{cite news|url=http://en.rian.ru/science/20111109/168527324.html|title=|author=|publisher=RIA Novosti|date=2011-11-09}}</ref> The Zenit booster inserted the spacecraft into an initial {{convert|207|x|347|km|abbr=on}} elliptical ] with an inclination of 51.4 degrees.<ref name="psr_profile"/>


It was launched on 8 November 2011, at 20:16 ], from the ], but subsequent rocket burns intended to set the craft on a course for Mars failed, leaving it stranded in ].<ref name="noburn">{{cite web|url=http://www.satobs.org/seesat/Nov-2011/0069.html|title=Phobos-Grunt – serious problem reported|first=Ted|last=Molczan|publisher=SeeSat-L|date=9 November 2011|access-date=9 November 2011}}</ref><ref name=vlad/> Efforts to reactivate the craft were unsuccessful, and it fell back to Earth in an uncontrolled ] on 15 January 2012, over the ], west of ].<ref>, BBC News, 14 January 2012</ref><ref name="Fox News">{{cite news|url=http://www.foxnews.com/scitech/2012/01/15/russian-space-probe-to-crash-on-earth-within-hours/|archive-url=https://web.archive.org/web/20120115162354/http://www.foxnews.com/scitech/2012/01/15/russian-space-probe-to-crash-on-earth-within-hours/|url-status=dead|archive-date=15 January 2012|publisher=Fox News Channel|title=Russian space probe crashes into Pacific Ocean|date=15 January 2012}}</ref><ref>, ], 17 January 2012</ref> The return vehicle was to have returned to Earth in August 2014, carrying up to {{cvt|200|g}} of soil from Phobos.
Two firings of the main propulsion unit in Earth orbit were required to send the spacecraft onto the interplanetary trajectory. Since both engine ignitions would have taken place outside the range of Russian ground stations, the project participants asked volunteers around the world to take optical observations of the burns, e.g. with telescopes, and report the results to enable more accurate prediction of the mission flight path upon entry into the range of Russian ground stations.<ref> Phobos-soil project</ref>


Funded by the ] and developed by ] and the ], Fobos-Grunt was the first Russian-led interplanetary mission since the failed ]. The last successful interplanetary missions were the Soviet ] in 1985–1986, and the partially successful ] in 1988–1989.<ref>{{cite web|url=http://www.spaceref.com/news/viewsr.rss.html?pid=39079|archive-url=https://archive.today/20120909181732/http://www.spaceref.com/news/viewsr.rss.html?pid=39079|url-status=dead|archive-date=2012-09-09|title=Jonathan's Space Report No.650 2011 November 16}}</ref> Fobos-Grunt was designed to become the first spacecraft to return a macroscopic sample from an extraterrestrial body since ] in 1976.<ref name="universetoday_daring">{{cite news |url=http://www.universetoday.com/89845/daring-russian-sample-return-mission-to-martian-moon-phobos-aims-for-november-liftoff/|title=Daring Russian Sample Return mission to Martian Moon Phobos aims for November Liftoff|publisher=Universe Today|date=13 October 2011}}</ref>
===Post-launch===
]
It was expected that after 2.5 hours and 1.7 revolutions in the initial orbit, the autonomous main propulsion unit (MDU), derived from the ] upper stage, would conduct its firing to insert the spacecraft into the elliptical orbit (250&nbsp;km x 4,150-4,170&nbsp;km) with a period of about 2.2 hours. After the completion of the first burn, the external fuel tank of the propulsion unit was expected to be jettisoned, with ignition for a second burn to depart Earth orbit scheduled for one orbit, or 2.1 hours, after the end of the first burn.<ref name="psr_profile"> Phobos-Soil project</ref><ref name=InterfaxNov082011>{{cite news|title=Phobos-Grunt to be launched to Mars on Nov 8|url=http://www.interfax.co.uk/russia-cis-military-news-bulletins-in-english/phobos-grunt-to-be-launched-to-mars-on-nov-8-3/|accessdate=5 October 2011|newspaper=Interfax News|date=4 October 2011}}</ref><ref>{{cite web|url=http://roscosmos.ru/main.php?id=2&nid=18114 |date=21 October 2011|title=Fobos-Grunt space probe is moved to a refueling station|publisher=Roscosmos|accessdate=2011-10-21}}{{ref-ru}}</ref> The propulsion module constitutes the cruise-stage bus of Fobos-Grunt. According to original plans, Mars orbit arrival had been expected during September 2012 and the return vehicle was scheduled to reach Earth in August 2014.<ref name="ESA_PMR">{{cite web|url=http://www.esa.int/esaMI/ESA_Permanent_Mission_in_Russia/SEMIJFW4QWD_0.html |date=October 25, 2004|title=Phobos-Grunt|publisher=European Space Agency|accessdate=2009-05-26}}</ref><ref name="PlanetaryBlog">{{cite web|url=http://www.planetary.org/blog/article/00002738/ |date=October 27, 2010|title=Timeline for the Phobos Sample Return Mission (Phobos Grunt)|publisher=Planetary Society|accessdate=2010-10-28}}</ref>


== Project history ==
However, following what would have been the planned end of the first burn the spacecraft could not be located in the target orbit. The spacecraft was subsequently discovered to still be in its initial ],<ref name="noburn"/> and it was determined that the burn had not taken place.<ref>{{cite web|url=http://ria.ru/science/20111109/484401134.html|title=Маршевая двигательная установка станции "Фобос-Грунт" не сработала|publisher=RIA Novosti|date=9 November 2011|accessdate=9 November 2011|language=Russian}}</ref> Initially, engineers had about three days from launch to rescue the spacecraft before its batteries ran out.<ref name="Popovkin" /> It was then established that the craft's solar panels had deployed, giving engineers more time to restore control. It was soon discovered the spacecraft was adjusting its orbit, changing its expected re-entry from late November or December to as late as early 2012.<ref name=davidw></ref> Even though it had not been contacted, the spacecraft seemed to be actively adjusting its ] (the point it is closest to Earth in its orbit).<ref name=davidw/><ref>http://english.ruvr.ru/2011/11/15/60435756.html</ref><ref>http://english.ruvr.ru/2011/11/14/60345638.html</ref>


=== Budget ===
By 22 November 2011, attempts to establish connection with the probe were unsuccessful.<ref name="ItarTASS1122">{{cite web|url=http://www.itar-tass.com/c245/278001.html|title=Роскосмос признал, что шансов реализовать миссию "Фобос-Грунт" практически не осталось|language=Russian}}</ref>
The cost of the project was 1.5 billion rubles (US$64.4 million).{{citation needed|date=March 2023}} Project funding for the timeframe 2009–2012, including post-launch operations, was about 2.4 billion rubles.<ref name="preflight">{{cite web|url=http://www.russianspaceweb.com/phobos_grunt_preflight.html|title=Preparing for flight|last=Zak|first=Anatoly|publisher=RussianSpaceWeb.com|access-date=26 May 2009}}</ref> The total cost of the mission was to have been 5 billion rubles (US$163 million).


According to lead scientist ], the entire spacecraft and most of the instruments were new, though the designs drew upon the nation's legacy of three successful ], which in the 1970s retrieved a few hundred grams of Moon rocks.<ref>{{cite news|url=http://www.nature.com/news/russia-takes-aim-at-phobos-1.9303|title=Russia takes aim at Phobos|work=Nature|date=4 November 2011}}</ref> Zakharov had described the Phobos sample return project as "possibly the most difficult interplanetary one to date".<ref name="mt_prelaunch"/>
===Contact===
On 22 November 2011, a signal from the probe was picked up by the ], ], after it had sent the probe the command to turn on one of its transmitters. The ] (ESOC) in ] reported that the contact was made at 20:25 UTC on 22 November 2011 after some modifications had been made to the 15&nbsp;m dish facility in ] to improve its chances of getting a signal.<ref name=BBCNOV23>{{cite news|url=http://www.bbc.co.uk/news/science-environment-15850516 |title=Signal picked from Russia's stranded Mars probe |publisher=BBC News |first=Jonathan |last=Amos |date=23 November 2011}}</ref> No ] was received in this communication.<ref name="SF">{{cite web |url=http://www.spaceflightnow.com/news/n1111/23phobosgrunt/ |title=It's alive! Russia's Phobos-Grunt probe phones home |date=23 November 2011 |publisher=Spaceflight Now |first=Stephen |last=Clark}}</ref> It remained unclear whether the communications link would have been sufficient to command the spacecraft to switch on its engines to take it on its intended trajectory toward Mars.<ref name=spacenews>http://www.spacenews.com/civil/111123-esa-establishes-contact-with-phobos-grunt-spacecraft.html ESA Makes Contact with Russia’s Stranded Phobos-Grunt Spacecraft</ref> Roscosmos officials said that the window of opportunity to salvage Fobos-Grunt would close in early December.<ref name="spacenews"/>


=== Development ===
The next day, on 23 November, the Perth station again made contact with the spacecraft and during this contact about 400 telemetry "frames" and Doppler information were received.<ref name="spaceflightnow.com">http://www.spaceflightnow.com/news/n1111/25phobosgrunt/</ref> This contact lasted six minutes.<ref>{{cite web |url=http://en.ria.ru/science/20111124/168984266.html |title=ESA receives telemetry from Russian Mars probe |publisher=Ria Novosti |date=24 November 2011}}</ref><ref name="msnbc.msn.com">http://www.msnbc.msn.com/id/45413483/</ref> The amount of information received during this communication was not sufficient, and therefore it was not possible to identify the problem with the probe.<ref name="msnbc.msn.com"/><ref>http://www.msnbc.msn.com/id/45529538/ns/technology_and_science-space/t/phobos-grunt-dead-esa-stop-trying-contact-probe/</ref> Further communication attempts made by ESA were unsuccessful and contact was not reestablished.<ref name="ReferenceA">http://www.msnbc.msn.com/id/45529424</ref> The space vehicle did not respond to the commands sent by the ] to raise its orbit.<ref name="ReferenceA"/> Roscosmos provided these commands to ESA.<ref name="spaceflightnow.com"/>
{{see also|Space industry of Russia}}
]
]
The Fobos-Grunt project began in 1999, when the ] and ], the main developer of Soviet and Russian interplanetary probes, initiated a 9 million ] feasibility study into a Phobos sample-return mission. The initial spacecraft design was to be similar to the probes of the ] launched in the late 1980s.<ref name="harvey_fobos"/> Development of the spacecraft started in 2001 and the preliminary design was completed in 2004.{{citation needed|date=March 2023}} For years, the project stalled as a result of low levels of financing of the Russian space program. This changed in the summer of 2005, when the new government plan for space activities in 2006–2015 was published. Fobos-Grunt was now made one of the program's flagship missions. With substantially improved funding, the launch date was set for October 2009. The 2004 design was revised a couple of times and international partners were invited to join the project.<ref name="harvey_fobos">{{cite book|last=Harvey|first=Brian|title=The Rebirth of the Russian Space Program|publisher=Springer|location=Germany|year=2007|edition=1st|chapter=Resurgent – the new projects|pages=326–330|isbn=978-0-387-71354-0}}</ref> In June 2006, NPO Lavochkin announced that it had begun manufacturing and testing the development version of the spacecraft's onboard equipment.{{citation needed|date=March 2023}}


On 26 March 2007, Russia and China signed a cooperative agreement on the joint exploration of Mars, which included sending China's first interplanetary probe, ], to Mars together with the Fobos-Grunt spacecraft.{{citation needed|date=March 2023}} Yinghuo-1 weighed {{cvt|115|kg}} and would have been released by the main spacecraft into a Mars orbit.<ref name="Popovkin"/>
From Baikonour, Kazakhstan, Roscosmos was able to receive telemetry from Fobos-Grunt on 24 November<ref name="ReferenceB">http://en.rian.ru/science/20111125/169033219.html</ref> but attempts to contact it failed.<ref name="ReferenceA"/> This telemetry demonstrated that the probe's radio equipment was working and that it was communicating with the spacecraft's flight control systems.<ref name="ReferenceB"/> Moreover, Roscosmos's top officials believed Fobos-Grunt to be functional, stably oriented and charging batteries through its solar panels.<ref name="SF" />


=== Partners ===
In a late November 2011 interview, the service manager of the European Space Agency for Fobos-Grunt, ], stated that Roscosmos had a better understanding of the problem with the spacecraft, saying they reached the conclusion that they have some kind of power problem onboard.<ref name="space.com">http://www.space.com/13710-phobos-grunt-rescue-time-running.html</ref>
] was the project's main contractor developing its components. The Chief Designer of Fobos-Grunt was ].<ref>{{in lang|ru}}</ref> Phobos soil sampling and downloading were developed by the GEOHI RAN Institute of the ] (Vernadski Institute of Geochemistry and Analytical chemistry) and the integrated scientific studies of Phobos and Mars by remote and contact methods were the responsibility of the ],<ref name="ESA_PMR"/> where ] served as lead scientist of the mission.<ref name="mt_prelaunch">{{cite news|url=http://www.themoscowtimes.com/news/article/mars-moon-lander-to-return-russia-to-deep-space/447350.html|title=Mars Moon Lander to Return Russia to Deep Space|newspaper=The Moscow Times|date=8 November 2011}}</ref>


The Chinese ] orbiter was launched together with Fobos-Grunt.<ref>{{cite web|url=http://www.nasaspaceflight.com/2007/05/with-a-russian-hitch-hike-china-heading-to-mars/|title=With a Russian hitch-hike, China heading to Mars|date=21 May 2007|first=Chris|last=Bergin|publisher=NASAspaceflight}}</ref> In late 2012, after a 10–11.5-month cruise, Yinghuo-1 would have separated and entered an 800 × 80,000&nbsp;km equatorial orbit (5° inclination) with a period of three days. The spacecraft was expected to remain on Martian orbit for one year. Yinghuo-1 would have focused mainly on the study of the external environment of Mars. Space center researchers expected to use photographs and data to study the magnetic field of Mars and the interaction between ]s, escape particles and ].<ref>{{cite web |url=http://english.peopledaily.com.cn/200705/30/eng20070530_379330.html|title=China and Russia join hands to explore Mars|newspaper=People's Daily|date=30 May 2007|access-date=31 May 2007}}</ref>
ESA failed to communicate with the space probe in all of the five opportunities the agency had between 28 November and 29 November. During those occasions the spacecraft did not comply with orders to fire the engines and raise its orbit. The Russian space agency then requested that ESA repeat the orders.<ref>http://au.ibtimes.com/articles/258297/20111130/phobos-grunt-esa-slatest-orbit-raising-maneuvers.htm</ref> The European Space Agency decided to end the efforts to contact the probe on 2 December 2011. However, ESA made teams available to assist the Fobos-Grunt mission if indicated by any change in situation.<ref>{{cite web |url=http://www.msnbc.msn.com/id/45529538/ns/technology_and_science-space/ |title=Is Phobos-Grunt dead? Europeans end rescue effort |last1=Chow |first1=Denise |date=2 December 2011 |work=msnbc.com |accessdate=3 December 2011}}</ref> In spite of that Roscosmos stated their intention to continue to try to contact the space vehicle until it entered "the thicker layers of the atmosphere."<ref>http://en.rian.ru/science/20111124/169008082.html</ref>


A second Chinese payload, the Soil Offloading and Preparation System (SOPSYS), was integrated in the lander. SOPSYS was a microgravity grinding tool developed by the ].<ref>{{cite web|url=http://www.chinadaily.com.cn/china/2007-03/28/content_838049.htm|title=Chinese satellite to orbit Mars in 2009|newspaper=China Daily|date=27 March 2007|last=Zhao|first=Huanxin}}</ref><ref>{{cite web|url=http://www.hktrader.net/200705/lead/lead-SpaceMission200705.htm|title=HK triumphs with out of this world invention|publisher=HK Trader|date=1 May 2007|access-date=21 November 2008|archive-url=https://web.archive.org/web/20120213201112/http://www.hktrader.net/200705/lead/lead-SpaceMission200705.htm|archive-date=13 February 2012|url-status=dead}}</ref>
The ]’s ] (JSpOC) tracked the probe<ref>{{cite news| url=http://www.thespacereview.com/article/1968/1 }}</ref> and identified at the start of December that Fobos-Grunt had an elliptical orbit at an altitude of between 130 miles (209 km) and 190 miles (305 km), but falling a few miles each day.<ref>{{cite news| url=http://www.usatoday.com/tech/science/space/story/2011-12-02/russian-mars-probe/51550560/1 | work=USA Today | title=Most Popular E-mail Newsletter | date=1 December 2011}}</ref>
===Re-entry===
Media reports based on information provided by military sources claim that Fobos-Grunt was somewhere over the Pacific between New Zealand and South America shortly before 18:00 UTC when re-entry occurred.


Another payload on Fobos-Grunt was an experiment from the ] called ]; its goal was to test whether selected ]s can survive a few years in ] by flying them through interplanetary space. The experiment would have tested one aspect of ], the hypothesis that life could survive space travel, if protected inside rocks blasted by impact off one planet to land on another.<ref name=planetary-life>{{cite web|url=http://www.planetary.org/programs/projects/innovative_technologies/life/|title=Projects: LIFE Experiment: Phobos |publisher=The Planetary Society|access-date=2 April 2011|url-status=dead|archive-url=https://web.archive.org/web/20110316100755/http://www.planetary.org/programs/projects/innovative_technologies/life|archive-date=16 March 2011}}</ref><ref>{{cite web|url=http://www.lpi.usra.edu/meetings/phobosdeimos2007/pdf/7043.pdf|title=Living interplanetary flight experiment (LIFE): An experiment on the survivalability of microorganisms during interplanetary travel|access-date=1 July 2018}}</ref><ref name=Zak1>{{cite web|url=http://www.airspacemag.com/space-exploration/Mission_Possible.html?c=y&page=4|first=Anatoly|last=Zak |title=Mission Possible|date=1 September 2008|work=Air & Space Magazine|publisher=Smithsonian Institution|access-date=26 May 2009}}</ref><ref name="ASMp4"/><ref>{{cite web|publisher=The Planetary Society|url=http://www.planetary.org/programs/projects/life/|title=LIFE Experiment: Phobos|access-date=4 August 2008|archive-date=17 February 2010|archive-url=https://web.archive.org/web/20100217221528/http://planetary.org/programs/projects/life/|url-status=dead}}</ref>
On January 15, 2012 the Russian military reported that the Fobos-Grunt probe had re-entered the atmosphere at about 17:45 UTC.<ref name=RIANovostifalls>{{cite news|last=Zolotukhin|first=Alexei|title=Russian Phobos-Grunt Mars probe falls in Pacific Ocean|url=http://en.rian.ru/world/20120115/170769403.html|accessdate=16 January 2012|newspaper=RIA Novosti|date=January 15, 2012|quote=Phobos-Grunt fragments have crashed down in the Pacific Ocean}}</ref> Although it was initially feared its remains would reach land as close as 145&nbsp;km west of ], ], the Russian military Air and Space Defense Forces reported that it ultimately fell into the ], {{convert|775|mi|km}} west of ], ].<ref name="foxnews.com"/> However, the Defence Ministry spokesman subsequently revealed that such estimate was based on calculations, without witness reports. In contrast, Russian civilian ballistic experts cited by RIA Novosti said that the fragments had fallen over a broader patch of Earth's surface, and that the midpoint of the crash zone was located in the ] state of Brazil.<ref name=MaybeBrazil>{{cite news|title=Maybe Brazil... or possibly off the coast of Chile? Russian officials admit having no idea where failed Mars probe has crashed|url=http://www.dailymail.co.uk/sciencetech/article-2085869/Russian-Phobos-Grunt-Mars-probe-expected-hit-Earth-hours.html|accessdate=16 January 2012|newspaper=Daily Mail|date=January 16, 2012|location=London|first=Nick|last=Enoch}}</ref><ref name=Ballistics>{{cite news|title=Ballistics confirmed the coordinates of the fall of the "Phobos-Grunt" (Google Translate from Russian: Баллистики подтвердили координаты точки падения "Фобос-Грунта")|url=http://ria.ru/science/20120115/540183548.html|accessdate=16 January 2012|newspaper=RIA Novosti|date=January 16, 2012}}</ref>


The ] contributed with a radiation measurement experiment on Fobos-Grunt.<ref>{{cite web|url=http://www.space.bas.bg/|title=Проект "Люлин-Фобос" – "Радиационно сондиране по трасето Земя-Марс в рамките на проекта "Фобос-грунт"". Международен проект по програмата за академичен обмен между ИКСИ-БАН и ИМПБ при АН на Русия – (2011–2015)|publisher=Bulgarian Academy of Sciences}}</ref>
It was hoped that the re-entry capsule might be recovered, giving at least some scientific return on the mission in the form of engineering assessment of the capsule design, and life sciences data with the ].<ref>Universe Today, , David Warmflash, 13 December 2011</ref> However, the spacecraft remains could not be located.<ref>{{cite web |url=http://www.planetary.org/blog/article/00003327/ |title=Bruce Betts: Reflections on Phobos LIFE |author=Emily Lakdawalla |date=January 13, 2012 |work=The Planetary Society Blog |accessdate=March 17, 2012}}</ref>


Two ] Mars landers developed by the ], were planned to be included as payload of the Fobos-Grunt mission,<ref>{{cite web|publisher=Finnish Meteorological Institute |url=http://metnet.fmi.fi/index.php?id=92|title=MetNet Mars Precursor Mission|url-status=dead|archive-url=https://web.archive.org/web/20101019000204/http://metnet.fmi.fi/index.php?id=92|archive-date=19 October 2010}}</ref><ref>{{cite web|publisher=Energy & Enviro Finland|date=17 October 2007|url=http://www.energy-enviro.fi/index.php?PAGE=1083&NODE_ID=1083&LANG=1|title=Space technology – a forerunner in Finnish-Russian high-tech cooperation|url-status=dead|archive-url=https://web.archive.org/web/20090317130117/http://www.energy-enviro.fi/index.php?PAGE=1083&NODE_ID=1083&LANG=1|archive-date=17 March 2009}}</ref> but weight constraints on the spacecraft required dropping the MetNet landers from the mission.<ref name="preflight"/>
===Risk===
Roughly 7.51 metric tonnes of highly toxic ] and ] were on board, according to the head of Roscosmos.<ref name=vlad></ref><ref name="Popovkin">http://www.space.com/13618-russia-phobos-grunt-mars-spacecraft-silent.html</ref> This was mostly fuel for the spacecraft's upper stage. These compounds, with melting points of 2 °C and -11.2 °C, are normally kept in liquid form and were expected to burn out during re-entry.<ref name="Popovkin" /> NASA veteran ] said the hydrazine and nitrogen tetroxide "could freeze before ultimately entering".<ref name=vlad/> If Fobos-Grunt is not salvaged, it may be the most dangerous object to fall from orbit.<ref name=vlad/> However, the head of Roscomos said the probability of parts reaching the Earth was "highly unlikely", and that the spacecraft, including the LIFE module and the Yinghuo-1 probe, would be destroyed during re-entry.<ref name="Popovkin"/>


===Aftermath=== === Postponed 2009 launch ===
The October 2009 launch date could not be achieved due to delays in the spacecraft development. During 2009, officials admitted that the schedule was very tight, but still hoped until the last moment that a launch could be made.<ref name="ASMp4">{{cite web|url=http://www.airspacemag.com/space-exploration/Mission_Possible.html?c=y&page=4|title=Mission Possible – A new probe to a Martian moon may win back respect for Russia's unmanned space program|last=Zak|first=Anatoly|date=1 September 2008|publisher=AirSpaceMag.com|access-date=26 May 2009}}</ref> On 21 September 2009, the mission was officially announced to be delayed until the next launch window in 2011.<ref name="preflight"/><ref name="rian_delay">{{cite news|url=http://www.rian.ru/science/20090921/185905786.html|date=21 September 2009|title=Fobos-Grunt probe launch is postponed to 2011|agency=RIA Novosti|language=ru|access-date=21 September 2009}}</ref><ref>{{cite web|title=Russia delays Mars probe launch until 2011: report|date=16 September 2009 |url=http://www.marsdaily.com/reports/Russia_delays_Mars_probe_launch_until_2012_report_999.html|publisher=Space Daily}}</ref><ref name="spectrum_delay">{{cite web|url=https://spectrum.ieee.org/russia-to-delay-martian-moon-mission|title=Russia to Delay Martian Moon Mission|last=Zak|first=Anatoly|date=April 2009|publisher=IEEE Spectrum|access-date=26 May 2009}}</ref> A main reason for the delay was difficulties encountered during development of the spacecraft's onboard computers. While the Moscow-based company Tehkhom provided the computer hardware on time, the internal NPO Lavochkin team responsible for integration and software development fell behind schedule.<ref name="zak_spacenews">{{cite news|url=http://www.spacenews.com/civil/industry-insiders-foresaw-delay-russia-phobos-grunt.html|archive-url=https://archive.today/20130202193557/http://www.spacenews.com/civil/industry-insiders-foresaw-delay-russia-phobos-grunt.html|url-status=dead|archive-date=2 February 2013|title=Industry Insiders Foresaw Delay of Russia's Phobos-Grunt|publisher=SpaceNews|date=5 October 2009}}</ref> The retirement of NPO Lavochkin's head Valeriy N. Poletskiy in January 2010 was widely seen as linked to the delay of Fobos-Grunt. Viktor Khartov was appointed the new head of the company. During the extra development time resulting from the delay, a ]-built drill was added to the Phobos lander as a back-up soil extraction device.<ref name="zak_bbc_rebirth">{{cite news|url=https://www.bbc.co.uk/news/10414237|title=Difficult rebirth for Russian space science|publisher=BBC News|date=29 June 2010}}</ref>


=== 2011 launch ===
Initially, the head of Roscosmos ], suggested that the Fobos-Grunt failure of might have been the result of sabotage by a foreign nation.<ref>, theregister.co.uk, 10th January 2012</ref><ref name="msnbc-10-Jan-2012">, msnbc.com, 10 January 2012</ref> He also stated that risky technical decisions had been made because of limited funding. On 17 January 2012, an unidentified Russian official speculated that a U.S. radar stationed on the ] may have inadvertently disabled the probe, but cited no evidence.<ref>{{cite news| url=http://www.smh.com.au/technology/technology-news/oops-radar-may-have-caused-space-crash-20120117-1q4ea.html | work=The Sydney Morning Herald | date=17 January 2012}}</ref> Popovkin announced on February 1 that a burst of ] may have caused computers to reboot and go into a standby mode. Popovkin blamed counterfeit or defective microchips for the issue.<ref> {{cite news | title = Phobos-Grunt chips supposedly were counterfeit | date = January 31, 2012 | url = http://www.itar-tass.com/en/c32/330734.html | work = ITAR-TASS News Agency | accessdate = 2012-02-29}}</ref> Industry experts cast doubt on the claim citing the how unlikely effects of such a burst are in low earth orbit, inside the protective ].<ref></ref>
The spacecraft arrived at ] on 17 October 2011 and was transported to Site 31 for pre-launch processing.<ref name=russianspaceweb_phobos_grunt_arrives_to_baikonur>{{cite web |url=http://russianspaceweb.com/phobos_grunt_2011.html#baikonur|title=Phobos-Grunt project in 2011|publisher=RussianSpaceWeb.com|access-date=1 July 2018}}</ref> The Zenit-2SB41 launch vehicle carrying Fobos-Grunt successfully lifted off from Baikonur Cosmodrome at 20:16 ] on 8 November 2011.{{citation needed|date=March 2023}} The Zenit booster inserted the spacecraft into an initial {{cvt|207|x|347|km}} elliptical ] with an inclination of 51.4°.<ref name="psr_profile"/>


Two firings of the main propulsion unit in Earth orbit were required to send the spacecraft onto the interplanetary trajectory. Since both engine ignitions would have taken place outside the range of Russian ground stations, the project participants asked volunteers around the world to take optical observations of the burns, e.g. with telescopes, and report the results to enable more accurate prediction of the mission flight path upon entry into the range of Russian ground stations.<ref>{{cite web|url=http://freze.it/SitpPS|title=We need your support in the project "Phobos-Soil"|access-date=22 April 2012|year=2011 |publisher=Russian Space Research Institute|url-status=dead|archive-url=https://web.archive.org/web/20140824062611/http://freze.it/SitpPS|archive-date=24 August 2014}}</ref>
On February 6, 2012, the commission investigating the mishap concluded that Fobos-Grunt mission failed because "a programming error which led to a simultaneous reboot of two working channels of an onboard computer." The craft's rocket pack never fired because of the computer reboot, leaving the craft stranded in orbit several hundred miles above Earth.<ref> {{cite news | first = Stephen | last = Clark | title = Russia: Computer crash doomed Phobos-Grunt | date = 6 February 2012 | url = http://www.spaceflightnow.com/news/n1202/06phobosgrunt/ | work = Spaceflight Now | accessdate = 2012-02-29}}</ref><ref> {{cite news | title = Programmers are to be blamed for the failure of Phobos mission | date = January 31, 2012 | url = http://www.itar-tass.com/en/c142/330393.html | work = ITAR-TASS News Agency | accessdate = 2012-02-29}}</ref> Russian president ] suggested that those responsible should be punished and perhaps criminally prosecuted.<ref>http://blogs.nature.com/news/2011/11/medvedev_punishment_awaits_tho_1.html</ref><ref>{{cite news| url=http://www.reuters.com/article/2011/11/26/us-russia-space-idUSTRE7AP0FI20111126 | work=Reuters | title=Medvedev suggests prosecution for Russia space failure | date=26 November 2011}}</ref>


=== Post-launch ===
On January 2012, Vladimir Popovkin called for a repeat sample return mission called Fobos-Grunt-2, to launch in 2018 if Russia did not reach an agreement with the ] regarding a collaboration on the ] program.<ref>{{cite news|url=http://www.kyivpost.com/news/russia/detail/121068/|title=Russian Lavochkin Center chief calls for new Phobos missions|date=2012-01-24|publisher=kyivpost|accessdate=11 February 2012}}</ref><ref>{{cite web|url=http://www.space.com/13870-russia-phobos-grunt-spacecraft-life.html|title=Scientist: Russia's Failed Mars' Moon Probe Worth a Second Try|last=Warmflash|first=David|date=2011-12-08|accessdate=11 February 2012}}</ref><ref>{{cite news|url=http://en.rian.ru/science/20120131/171052488.html|title=Russia May Run Repeat Mission to Phobos|date=2012-01-31|publisher=]|accessdate=11 February 2012}}</ref><ref name="ScienceMag">{{cite news |title=Russia Explores New Phobos-Grunt Mission to Mars |author=Daniel Clery |url=http://news.sciencemag.org/scienceinsider/2012/02/russia-explores-new-phobos-grunt.html?ref=hp |newspaper=ScienceInsider |date=February 2, 2012 |accessdate=February 24, 2012}}</ref> Since Roscosmos did reach a collaboration agreement with ESA, there was no attempt to repeat the Fobos-Grunt mission, thus disbanding the Fobos-Grunt team.<ref>{{cite news |title=Europe OKs Funding for Mars Mission with Russia |first=Peter B. |last=de Selding |url=http://www.space.com/14975-europe-exomars-mars-mission-funding.html |newspaper=Space News |date=20 March 2012 |accessdate=23 March 2012}}</ref><ref>{{cite news |title=Europe Joins Russia on Robotic ExoMars |author=Amy Svitak |url=http://www.aviationweek.com/aw/generic/story_channel.jsp?channel=space&id=news/awx/2012/03/15/awx_03_15_2012_p0-437120.xml&headline=Europe%20Joins%20Russia%20on%20Robotic%20ExoMars |newspaper=Aviation Week |date=March 15, 2012 |accessdate=March 15, 2012}}</ref> Since Roscosmos did reach a collaboration agreement with ESA<ref>{{cite news |title=Europe OKs Funding for Mars Mission with Russia |first=Peter B. |last=de Selding |url=http://www.space.com/14975-europe-exomars-mars-mission-funding.html |newspaper=Space News |date=20 March 2012 |accessdate=23 March 2012}}</ref><ref>{{cite news |title=Europe Joins Russia on Robotic ExoMars |author=Amy Svitak |url=http://www.aviationweek.com/aw/generic/story_channel.jsp?channel=space&id=news/awx/2012/03/15/awx_03_15_2012_p0-437120.xml&headline=Europe%20Joins%20Russia%20on%20Robotic%20ExoMars |newspaper=Aviation Week |date=March 15, 2012 |accessdate=March 15, 2012}}</ref>, there was no attempt to repeat the Fobos-Grunt mission, thus disbanding the Fobos-Grunt team.<ref name="ScienceMag"/>{{Synthesis-inline}}
]
It was expected that after 2.5 hours and 1.7 revolutions in the initial orbit, the autonomous main propulsion unit (MDU), derived from the ], would conduct its firing to insert the spacecraft into the elliptical orbit (250&nbsp;km x 4150–4170&nbsp;km) with a period of about 2.2 hours. After the completion of the first burn, the external fuel tank of the propulsion unit was expected to be jettisoned, with ignition for a second burn to depart Earth orbit scheduled for one orbit, or 2.1 hours, after the end of the first burn.<ref name="psr_profile"> Phobos-Soil project {{webarchive|url=https://web.archive.org/web/20140824062609/http://freze.it/PSMP|date=24 August 2014}}</ref><ref name=InterfaxNov082011>{{cite news|title=Phobos-Grunt to be launched to Mars on November 8|url=http://www.interfax.co.uk/russia-cis-military-news-bulletins-in-english/phobos-grunt-to-be-launched-to-mars-on-nov-8-3/|access-date=5 October 2011|agency=Interfax News|date=4 October 2011}}</ref><ref>{{cite web|url=http://roscosmos.ru/main.php?id=2&nid=18114|date=21 October 2011|title=Fobos-Grunt space probe is moved to a refueling station|publisher=Roscosmos|access-date=21 October 2011|language=ru |url-status=dead|archive-url=https://web.archive.org/web/20120402222213/http://roscosmos.ru/main.php?id=2&nid=18114|archive-date=2 April 2012}}</ref> The propulsion module constitutes the cruise-stage bus of Fobos-Grunt. According to original plans, Mars orbit arrival had been expected during September 2012 and the return vehicle was scheduled to reach Earth in August 2014.<ref name="ESA_PMR">{{cite web |url=http://www.esa.int/esaMI/ESA_Permanent_Mission_in_Russia/SEMIJFW4QWD_0.html|date=25 October 2004|title=Phobos-Grunt|publisher=European Space Agency|access-date=26 May 2009}}</ref><ref name="PlanetaryBlog">{{cite web|url=http://www.planetary.org/blog/article/00002738/|date=27 October 2010|title=Timeline for the Phobos Sample Return Mission (Phobos Grunt)|publisher=Planetary Society|access-date=28 October 2010 |url-status=dead|archive-url=https://web.archive.org/web/20101128180311/http://planetary.org/blog/article/00002738/|archive-date=28 November 2010}}</ref>


Following what would have been the planned end of the first burn, the spacecraft could not be located in the target orbit. The spacecraft was subsequently discovered to still be in its initial ] and it was determined that the burn had not taken place.<ref name="noburn"/> Initially, engineers had about three days from launch to rescue the spacecraft before its batteries ran out.<ref name="Popovkin"/> It was then established that the craft's solar panels had deployed, giving engineers more time to restore control. It was soon discovered the spacecraft was adjusting its orbit, changing its expected re-entry from late November or December 2011 to as late as early 2012.<ref name=davidw></ref> Even though it had not been contacted, the spacecraft seemed to be actively adjusting its ] (the point it is closest to Earth in its orbit).<ref name=davidw/><ref name="ItarTASS1122">{{cite web|url=http://www.itar-tass.com/c245/278001.html|script-title=ru:Роскосмос признал, что шансов реализовать миссию "Фобос-Грунт" практически не осталось|language=ru}}</ref>
==Objectives==
] 2011]]
Fobos-Grunt was an intended interplanetary probe that included a lander to study Phobos and a sample return vehicle to return a sample of about {{convert|200|g|abbr=on}} of soil<ref name=laspace_fobos_grunt_sent_to_baikonur> {{ref-ru}}</ref> to Earth. It was to also study ] from orbit, including its ] and dust storms, plasma and radiation.


===Science goals=== === Contact ===
On 22 November 2011, a signal from the probe was picked up by the ], ], after it had sent the probe the command to turn on one of its transmitters. The ] (ESOC) in ], ], reported that the contact was made at 20:25 UTC on 22 November 2011 after some modifications had been made to the {{convert|15|m}} dish facility in ] to improve its chances of getting a signal.<ref name=BBCNOV23>{{cite news|url=https://www.bbc.co.uk/news/science-environment-15850516|title=Signal picked from Russia's stranded Mars probe|publisher=BBC News|first=Jonathan|last=Amos|date=23 November 2011}}</ref> No ] was received in this communication.<ref name="SF">{{cite web
* Delivery of samples of Phobos soil to Earth for scientific research of Phobos, Mars and Martian vicinity;
|url=http://www.spaceflightnow.com/news/n1111/23phobosgrunt/|title=It's alive! Russia's Phobos-Grunt probe phones home|date=23 November 2011|publisher=Spaceflight Now|first=Stephen|last=Clark}}</ref> It remained unclear whether the communications link would have been sufficient to command the spacecraft to switch on its engines to take it on its intended trajectory toward Mars.<ref name=spacenews>{{cite news
* '']'' and remote studies of Phobos (to include analysis of soil samples);
|author=Peter B. de Selding|title=ESA Makes Contact with Russia's Stranded Phobos-Grunt Spacecraft|date=23 November 2011|url=http://www.spacenews.com/civil/111123-esa-establishes-contact-with-phobos-grunt-spacecraft.html|archive-url=https://archive.today/20130203051622/http://www.spacenews.com/civil/111123-esa-establishes-contact-with-phobos-grunt-spacecraft.html|url-status=dead|archive-date=3 February 2013|publisher=SpaceNews|access-date=20 May 2012}}</ref> Roscosmos officials said that the window of opportunity to salvage Fobos-Grunt would close in early December 2011.<ref name="spacenews"/>
* Monitoring the atmospheric behavior of Mars, including the dynamics of dust storms;
* Studies of the vicinity of Mars, including its radiation environment, ] and dust;<ref name="ESA_PMR"/>
* Study of the origin of the Martian satellites and their relation to Mars;
* Study of the role played by asteroid impacts in the formation of terrestrial planets;
* Search for possible past or present life (]s);<ref>{{cite web|url=http://sci2.esa.int/nextstep/RussianProgram.pdf |title=Russian programme for deep space exploration|first= O |last=Korablev|publisher= Space Research Institute (IKI)|page=14|format=PDF}}</ref>
* Study of the impact of a three year interplanetary round-trip journey to ] microorganisms in a small sealed capsule (]).<ref>{{cite web|publisher=The Planetary Society|url=http://www.planetary.org/programs/projects/innovative_technologies/life/organisms.html |title=Living Interplanetary Flight Experiment (LIFE)}}</ref>


The next day, on 23 November 2011, the Perth station again made contact with the spacecraft and during 6 minutes, about 400 telemetry "frames" and Doppler information were received.<ref name="SF"/><ref>{{cite web|url=http://en.ria.ru/science/20111124/168984266.html|title=ESA receives telemetry from Russian Mars probe|agency=RIA Novosti|date=24 November 2011}}</ref><ref name="MSNBC">{{cite news|title=Russia's Mars probe starts making regular contact|date=23 November 2011|url=https://www.nbcnews.com/id/wbna45413483|publisher=MSN News|access-date =20 May 2012}}</ref> The amount of information received during this communication was not sufficient, and therefore it was not possible to identify the problem with the probe.<ref name="MSNBC"/><ref name=end>{{cite news|author=Denise Chow|title=Is Phobos-Grunt dead? Europeans end rescue effort|date=2 December 2011|url=http://www.nbcnews.com/id/45529538|archive-url=https://web.archive.org/web/20200924002605/http://www.nbcnews.com/id/45529538|url-status=dead|archive-date=24 September 2020|publisher=NBC News|access-date=20 May 2012}}</ref> Further communication attempts made by ESA were unsuccessful and contact was not reestablished.<ref>{{cite news|author=Denise Chow|title=Is Phobos-Grunt Dead? Troubled Russian Probe Still Unresponsive|date=2 December 2011|url=http://www.nbcnews.com/id/45529424|archive-url=https://web.archive.org/web/20140824062655/http://www.nbcnews.com/id/45529424|url-status=dead|archive-date=24 August 2014|publisher=NBC News|access-date=20 May 2012}}</ref> The space vehicle did not respond to the commands sent by the ] to raise its orbit. Roscosmos provided these commands to ESA.<ref name="SF"/>
==Mission plan==
This is a description of the original mission plan.


From Baikonour, ], Roscosmos was able to receive telemetry from Fobos-Grunt on 24 November 2011{{citation needed|date=March 2023}} but attempts to contact it failed. This telemetry demonstrated that the probe's radio equipment was working and that it was communicating with the spacecraft's flight control systems.{{citation needed|date=March 2023}} Moreover, Roscosmos's top officials believed Fobos-Grunt to be functional, stably oriented and charging batteries through its solar panels.<ref name="SF"/>
===Journey===
The spacecraft's journey to ] would take about ten months. After arriving in Mars orbit, the main propulsion unit (MDU) and the transfer truss would separate, and the Chinese Mars orbiter would be released. Fobos-Grunt would then spend several months studying the planet and its moons from orbit, before landing on ]. The timeline, with its 2011 launch, was for arrival in Mars orbit in October 2012 and landing on Phobos in February 2013.<ref name="PlanetaryBlog"/>


In a late November 2011 interview, the service manager of the European Space Agency for Fobos-Grunt, Wolfgang Hell, stated that Roscosmos had a better understanding of the problem with the spacecraft, saying they reached the conclusion that they have some kind of power problem on board.<ref name="space.com">{{cite news|title=Time Running Out to Save Russian Mars Moon Probe|url=http://www.space.com/13710-phobos-grunt-rescue-time-running.html|date=22 November 2011|author=Leonard David|access-date=14 May 2012}}</ref>
The planned landing site was a region from 5°S to 5°N, 230° to 235°E.<ref>{{cite web|title=Phobos Flyby Images: Proposed Landing Sites for the Forthcoming Phobos-Grunt Mission|url=http://www.sciencedaily.com/releases/2010/03/100315125645.htm|publisher=Science Daily|accessdate=7 November 2011|archiveurl=http://www.webcitation.org/631nmiHG8|archivedate=7 November 2011|date=15 March 2010}}</ref>


ESA failed to communicate with the space probe in all of the five opportunities the agency had between 28 and 29 November 2011. During those occasions, the spacecraft did not comply with orders to fire the engines and raise its orbit. The Russian space agency then requested that ESA repeat the orders.<ref>{{cite news|author=Genalyn Corocoto|title=Phobos-Grunt: ESA's Latest Orbit Raising Maneuvers Fail, Re-entry Expected in January|date=30 November 2011|url=http://au.ibtimes.com/articles/258297/20111130/phobos-grunt-esa-slatest-orbit-raising-maneuvers.htm|archive-url=https://archive.today/20120701135207/http://au.ibtimes.com/articles/258297/20111130/phobos-grunt-esa-slatest-orbit-raising-maneuvers.htm|url-status=dead|archive-date=1 July 2012|work=International Business Times|access-date=20 May 2012}}</ref> The European Space Agency decided to end the efforts to contact the probe on 2 December 2011, with one analyst saying that Fobos-Grunt appeared "dead in the water".<ref>{{cite news|title=Russia's Mars Probe Appears 'Dead in the Water'|author=Leonard David|url=http://www.space.com/13846-phobos-grunt-russia-mars-mission-doomed.html|date=6 December 2011|access-date=12 May 2012}}</ref> However, ESA made teams available to assist the Fobos-Grunt mission if there was a change in situation.<ref name=end/> In spite of that, Roscosmos stated its intention to continue to try to contact the space vehicle until it entered the atmosphere.{{Citation needed|date=March 2023}}
===On Phobos===
]
Soil sample collection would begin immediately after the lander touched down on Phobos, with normal collection lasting 2–7 days. An emergency mode existed for the case of communications breakdown, which enabled the lander to automatically launch the return rocket to deliver the samples to Earth.<ref name="ASMp2"/>


The ]'s ] (JSpOC) tracked the probe and identified at the start of December 2011 that Fobos-Grunt had an elliptical Earth orbit at an altitude of between {{cvt|209|km}} and {{cvt|305|km}}, but falling a few kilometers each day.<ref>{{cite news|author=Michael Listner|title=Phobos-Grunt: a legal analysis of potential liability and options for mitigation|date=14 November 2011|url=http://www.thespacereview.com/article/1968/1|publisher=The Space Review|access-date=20 May 2012}}</ref><ref>{{cite news|url=https://www.usatoday.com/tech/science/space/story/2011-12-02/russian-mars-probe/51550560/1|newspaper=USA Today|title=Most Popular E-mail Newsletter|date=1 December 2011}}</ref>
A robotic arm would collect samples up to {{convert|0.5|in|cm}} in diameter. At the end of the arm was a pipe-shaped tool which split to form a claw. The tool contained a piston which would have pushed the sample into a cylindrical container. A light-sensitive photo-diode would have confirmed whether material collection was successful and also allowed visual inspection of the digging area. The sample extraction device would have performed 15 to 20 scoops yielding a total of {{convert|3|to|5.5|oz|g|}} of soil.<ref name="ASMp2">{{cite web|url=http://www.airspacemag.com/space-exploration/Mission_Possible.html?c=y&page=2 |title=Mission Possible |author=Zak}}</ref> The samples would be loaded into a capsule which would then be moved inside a special pipeline into the descent module by inflating an elastic bag within the pipe with gas.<ref name="en.rian.ru">{{cite web|first=Yury |last=Zaitsev |publisher=RIA Novosti|url=http://en.rian.ru/analysis/20080714/113951848.html |title=Russia to study Martian moons once again|date=14 July 2008}}</ref><ref name=rian_martynov_answers/> Because the characteristics of Phobos soil are uncertain, the lander included another soil-extraction device, a Polish-built drill, which would have been used in case the soil turned out to be too rocky for the main scooping device.<ref name="universetoday_daring"/><ref name="zak_bbc_rebirth"/>


=== Re-entry ===
The return stage was mounted on top of the lander. It would have needed to accelerate to {{convert|35|km/h|0|abbr=on}} to escape Phobos' gravity. In order to avoid harming the experiments remaining at the lander, the return stage would have only ignited its engine once the vehicle had been vaulted to a safe height by springs. It would then have begun maneuvers for the eventual trip to Earth, where it would have arrived in August 2014.<ref name="ASMp2" />
Before reentry, the spacecraft still carried about 7.51 tonnes of highly toxic ] and ] on board.<ref name=vlad></ref><ref name="Popovkin">{{cite news
|author=Mike Wall|title=Russia Still Trying to Contact Stranded Mars Moon Probe|date=14 November 2011|url=http://www.space.com/13618-russia-phobos-grunt-mars-spacecraft-silent.html|publisher=SPACE.com
|access-date=20 May 2012}}</ref> This was mostly fuel for the spacecraft's upper stage. These compounds, with melting points of 2&nbsp;°C and −11.2&nbsp;°C, are normally kept in liquid form and were expected to burn out during re-entry.<ref name="Popovkin"/> NASA veteran ] said the hydrazine and nitrogen tetroxide "could freeze before ultimately entering", thus contaminating the impact area.<ref name=vlad/> He also stated that if Fobos-Grunt were not salvaged, it may be the most dangerous object to fall from orbit.<ref name=vlad/> Meanwhile, the head of Roscosmos said the probability of parts reaching the Earth surface was "highly unlikely" and that the spacecraft, including the LIFE module and the Yinghuo-1 orbiter, would be destroyed during re-entry.<ref name="Popovkin"/>


Russian military sources claimed that Fobos-Grunt was somewhere over the Pacific Ocean between New Zealand and South America when it re-entered the atmosphere at about 17:45 UTC.{{citation needed|date=March 2023}} Although it was initially feared its remains would reach land as close as {{convert|145|km}} west of ], Argentina, the Russian military Air and Space Defense Forces reported that it ultimately fell into the Pacific Ocean, {{cvt|1247|km}} west of ], Chile.<ref name="Fox News"/> The Defence Ministry spokesman subsequently revealed that such estimate was based on calculations, without witness reports. In contrast, Russian civilian ballistic experts said that the fragments had fallen over a broader patch of Earth's surface, and that the midpoint of the crash zone was located in the ] state of ].<ref name=Ballistics>{{cite news|title=Ballistics confirmed the coordinates of the fall of the "Phobos-Grunt" (Google Translate from Russian: Баллистики подтвердили координаты точки падения "Фобос-Грунта")|url=http://ria.ru/science/20120115/540183548.html|access-date=16 January 2012|agency=RIA Novosti |date=16 January 2012}}</ref><ref>{{cite news|title=Phobos-Grunt Crashes into the Pacific|first=Katharine|last=Sanderson|url=http://www.astrobio.net/pressrelease/4476/phobos-grunt-crashes-into-the-pacific |newspaper=Astrobiology Magazine|date=18 January 2012|access-date=28 March 2012 |archive-url=https://web.archive.org/web/20200925194729/https://www.astrobio.net/also-in-news/phobos-grunt-crashes-into-the-pacific/ |archive-date=2020-09-25 |url-status=usurped}}</ref>
After the departure of the return stage, the lander's experiments would continue ''in situ'' on Phobos' surface for a year. To conserve power, mission control would have turned these on and off in a precise sequence. The robotic arm would have placed more samples in a chamber that would heat it and analyze its spectra. This analysis might have been able to determine the presence of volatile compounds, such as water.<ref name="ASMp2"/>


===Sample return to Earth=== === Aftermath ===
Initially, the head of Roscosmos ], suggested that the Fobos-Grunt failure might have been the result of sabotage by a foreign nation.<ref>, theregister.co.uk, 10 January 2012</ref><ref name="msnbc-10-Jan-2012">{{dead link|date=August 2024|bot=medic}}{{cbignore|bot=medic}}, NBC News, 10 January 2012</ref> He also stated that risky technical decisions had been made because of limited funding. On 17 January 2012, an unidentified Russian official speculated that a U.S. radar stationed on the ] may have inadvertently disabled the probe, but cited no evidence.<ref>{{cite news |title=Oops! Radar may have caused space crash|date=17 January 2011|newspaper=Sidney Morning Herald|url=http://www.smh.com.au/technology/technology-news/oops-radar-may-have-caused-space-crash-20120117-1q4ea.html|author=Bloomberg|access-date=20 May 2012}}</ref> Popovkin suggested the microchips may have been counterfeit,<ref name="Itar-Tass-20120131">{{cite news|title=Phobos-Grunt chips supposedly were counterfeit|date=31 January 2012|url=http://www.itar-tass.com/en/c32/330734.html|quote=heavy charged particles of space, which caused malfunction of the memory system during the second circuit in the orbit ... may have been counterfeit|agency=ITAR-TASS News Agency|access-date=29 February 2012}}</ref><ref>{{cite web|url=https://spectrum.ieee.org/did-bad-memory-chips-down-russias-mars-probe| title=Did Bad Memory Chips Down Russia's Mars Probe?|last=Oberg|first=James|date=16 February 2012|publisher=IEEE Spectrum|access-date=30 March 2012}}</ref> then he announced on 1 February 2012 that a burst of ] may have caused computers to reboot and go into a standby mode.<ref>{{cite news|url=https://www.usatoday.com/tech/science/space/story/2012-01-08/russian-mars-probe/52457434/1 |title=Underfunding doomed Russian Mars probe, lawyer says|last=Vergano|first=Dan|date=8 January 2012|newspaper=USA TODAY|access-date=23 March 2012}}</ref><ref name="Reuters">{{cite news |url=https://www.reuters.com/article/russia-spacecraft-idUSL5E8CV3TU20120131|title=Russia blames Mars probe failure on space radiation|last=de Carbonnel|first=Alissa|date=31 January 2012 |work=Reuters|access-date=27 February 2012}}</ref> Industry experts cast doubt on the claim citing how unlikely the effects of such a burst are in low Earth orbit, inside the protection of ].<ref>{{cite web|url=http://www.aviationweek.com/aw/generic/story_channel.jsp?channel=space&id=news/awx/2012/02/01/awx_02_01_2012_p0-419998.xml|archive-url=https://archive.today/20120720215550/http://www.aviationweek.com/aw/generic/story_channel.jsp?channel=space&id=news/awx/2012/02/01/awx_02_01_2012_p0-419998.xml|url-status=dead|archive-date=20 July 2012|title=Russia Places Phobos-Grunt Failure Blame|access-date=1 July 2018}}</ref>
The return stage with soil samples from Phobos was scheduled to be back near Earth in August 2014. An 11-kg<ref name="esa_spacecraft"> European Space Agency</ref> descent vehicle containing the capsule with soil samples (up to {{convert|0.2|kg|abbr=on}}) would have been released on direct approach to Earth at {{convert|12|km/s|abbr=on}}. Following the aerodynamic braking to {{convert|30|m/s|abbr=on}} the conical-shaped descent vehicle would perform a hard landing without a parachute within the ] test range in ].<ref name=rian_martynov_answers/> The vehicle did not have any radio equipment.<ref name="universetoday_daring"/> Ground-based radar and optical observations would have been used to track the vehicle's return.<ref name="zak_phobos_grunt_scenario"> Anatoly Zak</ref>


On 6 February 2012, the commission investigating the mishap concluded that Fobos-Grunt mission failed because of "a programming error which led to a simultaneous reboot of two working channels of an onboard computer". The craft's rocket pack never fired due to the computer reboot, leaving the craft stranded in Earth orbit.<ref>{{cite news|first=Stephen|last=Clark|title=Russia: Computer crash doomed Phobos-Grunt
==Payload==
|date=6 February 2012|url=http://www.spaceflightnow.com/news/n1202/06phobosgrunt/|publisher=Spaceflight Now|access-date=29 February 2012}}</ref><ref>{{cite news|title=Programmers are to be blamed for the failure of Phobos mission|date=31 January 2012|url=http://www.itar-tass.com/en/c142/330393.html|agency=ITAR-TASS News Agency|access-date=29 February 2012}}</ref> Although the specific failure was identified, experts suggest it was the culmination of poor quality control,<ref>{{cite web|url=http://www.russianspaceweb.com/phobos_grunt_2011.html|title=Phobos-Grunt project in 2011|website=russianspaceweb.com|access-date=1 July 2018}}</ref><ref> {{webarchive |url=https://web.archive.org/web/20120910133230/http://themoscownews.com/news/20120116/189373063.html|date=10 September 2012}}</ref> lack of testing,<ref>{{cite news|author=Louis D. Friedman|title=Phobos-Grunt Failure Report Released|date=6 February 2012|url=http://www.planetary.org/blogs/guest-blogs/lou-friedman/3361.html|publisher=The Planetary Society|access-date=20 May 2012}}</ref> security issues and corruption.<ref>{{cite news|author=Merryl Azriel|title=Grief and Concern over Russian Phobos-Grunt Failure|date=21 January 2011|url=http://www.spacesafetymagazine.com/2012/01/21/grief-concern-russian-phobos-grunt-failure/ |publisher=Space Safety Magazine|access-date=20 May 2012}}</ref> Russian president ] suggested that those responsible should be punished and perhaps criminally prosecuted.<ref name="Itar-Tass-20120131"/><ref>{{cite news|author=Eric Hand|title=Medvedev: Punishment awaits those behind Russian Mars failure|date=28 November 2011 |url=http://blogs.nature.com/news/2011/11/medvedev_punishment_awaits_tho_1.html|publisher=Nature|access-date=20 May 2012}}</ref><ref>{{cite news|url=https://www.reuters.com/article/us-russia-space-idUSTRE7AP0FI20111126|work=Reuters|title=Medvedev suggests prosecution for Russia space failure|date=26 November 2011}}</ref>
===Spacecraft instruments===
*TV system for navigation and guidance<ref>{{cite web|url=http://www.iki.rssi.ru/innov/eng/fg22.htm|title=Optico-electronic Instruments for the Phobos-Grunt Mission |publisher=Space Research Institute of the Russian Academy of Sciences|accessdate=2009-07-20}}</ref>
*Gas-Chromatograph package:<ref name="esa_spacecraft"/>
**Thermal Differential Analyzer
**Gas-Chromatograph
**Mass-Spectrometer
*Gamma ray spectrometer<ref name="harvey">{{cite book|last=Harvey|first=Brian|title=The Rebirth of the Russian Space Program|publisher=Springer|location=Germany|year=2007|edition=1st|chapter=Resurgent - the new projects|isbn=9780387713540}}</ref>
*Neutron spectrometer<ref name="harvey"/>
*Alpha X spectrometer<ref name="harvey"/>
*Seismometer<ref name="harvey"/>
*Long-wave radar<ref name="harvey"/>
*Visual and near-infrared spectrometer<ref name="harvey"/>
*Dust counter<ref name="harvey"/>
*Ion spectrometer<ref name="harvey"/>
*Optical solar sensor<ref>{{cite web|url=http://arc.iki.rssi.ru/ofo/page_osd_e.html|title=Optical Solar Sensor|publisher=Space Research Institute of the Russian Academy of Sciences|accessdate=2009-07-20}}</ref>


===Ground control=== === Repeat mission ===
In January 2012, scientists and engineers at the ] and ] called for a repeat sample return mission called '''Fobos-Grunt-2'''<ref name='Ambitious_Projects'>{{cite news|title=Russia's Ambitious space projects: Phobos-Grunt-2?|first=Zakutnyaya|last=Olga|url=http://indrus.in/articles/2012/02/02/russias_ambitious_space_poojects_phobos-grunt-2_14699.html|newspaper=Russian and India Report|date=2 February 2012|access-date=1 April 2012}}</ref> and '''Boomerang'''<ref>{{cite journal|title=Phobos Sample Return: Next Approach|journal=40th COSPAR Scientific Assembly|first1=Zelenyi|last1=Lev|first2=Martynov|last2=Maxim|first3=Zakharov|last3=Alexander|first4=Korablev|last4=Oleg|first5=Ivanov|last5=Alexey|first6=Karabadzak|last6=George|date=1 July 2018 |volume=40|pages=B0.4–10–14|bibcode=2014cosp...40E3769Z}}</ref><ref> 16 October 2013</ref> for launch in 2020.<ref name="Fobos-Grunt 2 launch in 2020">{{cite news|title="Phobos-Grunt-2" can be launched in 2020, says the head of IKI|url=http://www.ria.ru/science/20120425/635026363.html|agency=RIA Novosti|date=25 April 2012|access-date=29 April 2012}}</ref><ref name="RAS offer accepted">{{cite news|title=Federal Space Agency accepted the offer to renew the RAS Project "Phobos-Grunt"|url=http://www.interfax.ru/news.asp?id=240265|publisher=Interfax.ru|date=10 April 2012|language=ru|access-date=15 April 2012}}</ref> Popovkin declared that they would soon attempt to repeat the Fobos-Grunt mission, if an agreement was not reached for Russian co-operation in the ]'s ] program.{{citation needed|date=March 2023}} However, since an agreement was reached for the inclusion of Russia as a full project partner,<ref name='still keen'>{{cite news|author=Jonathan Amos|title=Europe still keen on Mars missions|date=15 March 2012 |url=https://www.bbc.co.uk/news/science-environment-17390576|publisher=BBC News|access-date=16 March 2012}}</ref> some instruments originally developed for Fobos-Grunt were flown in the ].<ref>{{cite news|title=Federal Space Agency is going to repeat the project "Phobos-Grunt"|url=http://www.news.nashbryansk.ru/2012/04/19/chronicles/povtorit-fobos-grunt/|newspaper=RBC|date=19 April 2012|access-date=20 April 2012|url-status=dead|archive-url=https://web.archive.org/web/20130510163325/http://www.news.nashbryansk.ru/2012/04/19/chronicles/povtorit-fobos-grunt/|archive-date=10 May 2013}}</ref>
The ] was located at the ] (] {{ref-ru}}, ] {{ref-uk}}) equipped with ] near ] in the ], ].<ref>, ] (June 25, 2010)</ref> ] and ] agreed in late October 2010 that the ] in ], ], would have controlled the probe.<ref name=tass102511>{{cite web|title= Russia's Phobos Grunt to head for Mars on November 9|publisher=Itar Tass|date=25 October 2011|url= http://www.itar-tass.com/en/c154/256285.html |accessdate=27 October 2011}}</ref>


On 2 August 2014, the ] stated that the Phobos-Grunt repeat mission might be restarted for a launch approximately in 2024.<ref>{{cite news|url=http://en.itar-tass.com/non-political/743326|title=Russia to focus on Moon, Mars exploration, repeat Phobos-Grunt mission|agency=ITAR–TASS|date=2 August 2014|access-date=3 August 2014}}</ref><ref name="repeat 2023">{{cite news |url=http://en.ria.ru/society/20141003/193618355/Russia-May-Send-Repeat-Mission-to-Martian-Moon-Phobos-in-2023.html|title=Russia May Send Repeat Mission to Martian Moon Phobos in 2023|agency=RIA Novosti|date=3 October 2014|access-date=5 October 2014}}</ref> In August 2015, the ]-] working group on post-] cooperation, completed a joint study for a possible future Phobos sample return mission, preliminary discussions were held,<ref name="Roscosmos 2015">{{cite news|url=http://www.esa.int/About_Us/Exhibitions/ESA_at_MAKS_2015|title=ESA at MAKS 2015|location=Zhukovsky, Russia|publisher=]|access-date=22 December 2015}}</ref><ref name="PS 2014">{{cite news|last=Kane|first=Van|url=http://www.planetary.org/blogs/guest-blogs/van-kane/20140609-a-checkup-on-future-mars-missions.html|title=A Checkup on Future Mars Missions|publisher=The Planetary Society|date=9 June 2014|access-date=22 December 2015}}</ref> and in May 2015 the Russian Academy of Sciences submitted a budget proposal.<ref name="Roscosmos 2015"/><ref name='Paving the way'>: "Choosing the launch window" 8 October 2015 Accessed on 29 December 2015</ref>
Communications with the spacecraft on the initial parking orbit are described in a two-volume publication on «Fobos-Grunt».<ref>{{ref-ru}}</ref>


As of September 2023, Roscosmos intended to launch Boomerang "after 2030".<ref>{{cite web |url=https://tass.com/russia/1668971 |title=Russia may launch mission to deliver soil from Mars moon after 2030 |work=] |date=2 September 2023 |access-date=6 August 2024}}</ref>
<!--I question the usefulness of this section:
<blockquote>
<big>'''2-7 Organization of the spacecraft (SC) control'''</big><br/><br/>
'''Main tasks of providing the control of the SC'''


Boomerang is intended to be the first stage of the Russian ] called ].<ref>{{cite web |last=Zak |first=Anatoly |url=https://www.russianspaceweb.com/phobos_grunt2.html |title=Phobos-Grunt-2 |work=RussianSpaceWeb |date=8 October 2015 |access-date=6 August 2024}}</ref><ref name=Mars-Grunt>{{cite news|author=Ilya Kramnik|title=Russia takes a two-pronged approach to space exploration|date=18 April 2012|url=http://indrus.in/articles/2012/04/18/russia_takes_a_two-pronged_approach_to_space_exploration_15511.html|publisher=Russia & India Report|access-date=18 April 2012}}</ref><ref>{{cite news|author=Dwayne A. Day|title=Red Planet blues|date=28 November 2011|url=http://www.thespacereview.com/article/1980/1|publisher=The Space Review|access-date=18 April 2012}}</ref> This Mars sample-return mission would be developed from the technologies demonstrated by Fobos-Grunt-2.<ref name='Paving the way'/>
<br/><br/>'''Trans Martian injection phase'''
<br/>Organization of interoperation with the SC in low Earth flight segment is characterized by practical inability to provide two-way communications with the SC, mainly in the initial parking orbit. This means that the first maneuver along the powered flight path between the parking orbit and the transfer orbit is performed by the SC automatically. The correct execution of the first orbit correction maneuver requires the following conditions to be met:


== Objectives ==
* launch to the initial orbit is performed correctly;
Fobos-Grunt was an intended interplanetary probe that included a lander to study Phobos and a sample return vehicle to return a sample of about {{cvt|200|g}} of soil to ].<ref name=laspace_fobos_grunt_sent_to_baikonur> {{Webarchive|url=https://web.archive.org/web/20111019135524/http://www.laspace.ru/rus/news.php#403 |date=19 October 2011}} {{in lang|ru}}</ref> It was also to study Mars from orbit, including its ] and dust storms, plasma and radiation.
* initiation of the burn is synchronized with a preset moment of Moscow Decree Time for a specific launch date.


;Science goals
To meet the second condition a non-volatile clock, counting the Moscow Decree Time and Date with adequate precision, is used with its dedicated power source on board the SC.
* Delivery of samples of Phobos soil to Earth for scientific research of Phobos, Mars and Martian vicinity;
* '']'' and remote studies of Phobos (to include analysis of soil samples);
* Monitoring the atmospheric behavior of Mars, including the dynamics of dust storms;
* Studies of the vicinity of Mars, including its radiation environment, ] and dust;<ref name="ESA_PMR"/>
* Study of the origin of the Martian moons and their relation to Mars;
* Study of the role played by asteroid impacts in the formation of terrestrial planets;
* Search for possible past or present life (]s);<ref>{{cite web|url=http://sci2.esa.int/nextstep/RussianProgram.pdf|title=Russian programme for deep space exploration|first=O|last=Korablev |publisher=Space Research Institute (IKI)|page=14|access-date=3 August 2008|archive-url=https://web.archive.org/web/20111129104640/http://sci2.esa.int/nextstep/RussianProgram.pdf|archive-date=29 November 2011 |url-status=dead}}</ref>
* Study of the impact of a three-year interplanetary round-trip journey on ] microorganisms in a small sealed capsule (]).<ref>{{cite web |publisher=The Planetary Society|url=http://www.planetary.org/programs/projects/innovative_technologies/life/organisms.html|title=Living Interplanetary Flight Experiment (LIFE)|url-status=dead|archive-url=https://web.archive.org/web/20110120141404/http://www.planetary.org/programs/projects/innovative_technologies/life/organisms.html|archive-date=20 January 2011}}</ref>


==Payload==
<br/>Monitoring of the SC flight starts after the flight computer is switched on by the contacts triggered by the SC separation followed by the flight computer initializing the onboard systems. The initialization takes 30 to 60 seconds. Then РПТ111 device is switched on, through which telemetry about the SC condition is transmitted to Earth. Starting with receiving this data the mission control center assumes «Fobos-Grunt» mission control.
]
*TV system for navigation and guidance (TSNN)<ref>{{cite web|url=http://www.iki.rssi.ru/innov/eng/fg22.htm|title=Optico-electronic Instruments for the Phobos-Grunt Mission |publisher=Space Research Institute of the Russian Academy of Sciences|access-date=20 July 2009}}</ref>
*Gas Analysis Package:<ref name="esa_spacecraft"/>
**Thermal Differential Analyzer (TDA)
**Gas-Chromatograph (KhMS-1F)
**Mass-Spectrometer (MAL-1F)
*Gamma ray spectrometer (FOGS)<ref name="harvey">{{cite book|last=Harvey|first=Brian|title=The Rebirth of the Russian Space Program|publisher=Springer|location=Germany|year=2007|edition=1st|chapter=Resurgent – the new projects|isbn=978-0-387-71354-0}}</ref>
*Neutron spectrometer (KhEND)<ref name="harvey"/>
*Laser Time-of-Flight Mass Spectrometer (LAZMA)
*Mössbauer Spectrometer (MIMOS-II)
*Thermal Detector (TERMO-FOB)
*Fourier Spectrometer (AOST)
*Echelle Spectrometer (TIMM)
*Seismogravimeter (GRAS-F)
*Seismometer (SEISMO)<ref name="harvey"/>
*Long-wave radar (DPR)<ref name="harvey"/>
*Visible and near-infrared microscopes (MicrOmega)<ref name="harvey"/>
*Dust counter (Meteor-F)<ref name="harvey"/>
*Dosimeter (Liulin-F)
*Secondary Ion Mass Spectrometer (MANAGA-F)<ref name="harvey"/>
*Optical solar & star sensor (LIBRATsIYa)<ref>{{cite web|url=http://arc.iki.rssi.ru/ofo/page_osd_e.html|title=Optical Solar Sensor|publisher=Space Research Institute of the Russian Academy of Sciences|access-date=20 July 2009|archive-date=19 July 2011|archive-url=https://web.archive.org/web/20110719073251/http://arc.iki.rssi.ru/ofo/page_osd_e.html|url-status=dead}}</ref>
*Plasma Complex (FPMS)
**Fluxgate magnetometer (DFM)
**Inductive magnetic sensor (KVD)
**Ion mass spectrometer (DIM)
**Ion mass spectrometer (DI)
*Ultrastable Oscillator (USO1)
*Ionospheric parameters experiment together with Yinghuo-1 (YH-1) spacecraft (MROE)
*BioPhobos/Anabioz
*BioPhobos/LIFE (Living Interplanetary Flight Experiment)


===Mass summary ===
<br/>While in parking orbit within the range of Russian ground stations, one-way monitoring of the SC flight is performed on the telemetry channel via РПТ111 transmitter, and the trajectory measurements are performed using 28Г6 device.
{| class="wikitable"
|-
! Spacecraft components !! Mass
|-
| '''Lander sample capsule''' || '''{{cvt|7|kg}}'''
|-
| '''Earth return vehicle (tot.):''' || '''{{cvt|287|kg}}'''
|-
| -Propellant ''(for trans-Earth injection maneuvers)'' || {{cvt|139|kg}}
|-
| -Dry mass || {{cvt|148|kg}}
|-
| '''Orbiter/lander instrument compartment''' || '''{{cvt|550|kg}}'''
|-
| '''Orbiter/lander (tot.):''' || '''{{cvt|1270|kg}}'''
|-
| -Propellant ''(for Phobos rendezvous and landing)'' || {{cvt|1058|kg}}
|-
| -Dry mass || {{cvt|212|kg}}
|-
| '''Phobos-Grunt/Yinghuo/MPU truss adapter''' || '''{{cvt|150|kg}}'''
|-
| '''"Yinghuo 1" subsatellite''' || '''{{cvt|115|kg}}'''
|-
| '''Main propulsion unit (MPU) stage''', excluding external propellant tank: || '''{{cvt|7750|kg}}'''
|-
| -Propellant ''(for trans-Mars injection burn and initial {{cvt|800|x|75900|km}} Mars orbit insertion)'' || {{cvt|7015|kg}}
|-
| -Dry mass|| {{cvt|735|kg}}
|-
| '''External propellant tank:''' || '''{{cvt|3376|kg}}'''
|-
| -Propellant ''(for {{cvt|250|x|4710|km}} Earth parking orbit insertion)'' || {{cvt|3001|kg}}
|-
| -Dry mass || {{cvt|375|kg}}
|-
| '''Total mass''' || '''{{cvt|13505|kg}}'''<ref name="galspace.spb.ru"/>
|}


== Mission plan ==
<br/>After reaching the transfer orbit the visibility areas are increased, angular velocity of the SC movement relative to the ground stations is decreased, an opportunity becomes available to establish two-way communications with the SC via onboard radiosystem of the cruise stage.</blockquote>
=== Journey ===
-->
The spacecraft's journey to Mars would take about ten months. After arriving in Mars orbit, the main propulsion unit and the transfer truss would separate and the Chinese Mars orbiter would be released. Fobos-Grunt would then spend several months studying the planet and its moons from orbit, before landing on ]. It was imperative to prevent the introduction to Mars of contaminants from Earth; according to Fobos-Grunt Chief Designer ], the probability of the probe accidentally reaching the surface of Mars was much lower than the maximum specified for Category III missions, the type assigned to Fobos-Grunt and defined in ]'s ] policy (in accordance with ] of the Outer Space Treaty).<ref name=rian_martynov_answers>{{cite web|url=http://ria.ru/online/456770097.html|title=Russia resumes missions to outer space: what is after Phobos?|language=ru}}</ref><ref name=cospar_ppp>{{cite web |url=http://cosparhq.cnes.fr/Scistr/Pppolicy.htm|title=COSPAR Planetary Protection Policy|access-date=3 November 2011|archive-url=https://web.archive.org/web/20101126114737/http://cosparhq.cnes.fr/Scistr/Pppolicy.htm|archive-date=26 November 2010|url-status=dead}}</ref>


]: (1) Arrival of Phobos-Grunt, (2) Insertion maneuver in orbit around Mars, (3) Drop of the ] stage and separation of the probe and Yinghuo-1, (4) Maneuver for to raise the ], (5) Yinghuo 1 starts his mission on the first orbit, (6) Maneuver to place himself in an orbit close to that of Phobos; (A) Orbit of Phobos, (B) Orbit of insertion of Phobos-Grunt and ], (C) Orbit with raised periapsis, (D) ] orbit with Phobos.]]
==Development==
]


===Main participants=== === On Phobos ===
The planned landing site at Phobos was a region from 5°S to 5°N, 230° to 235°E.<ref>{{cite web|title=Phobos Flyby Images: Proposed Landing Sites for the Forthcoming Phobos-Grunt Mission |url=http://www.sciencedaily.com/releases/2010/03/100315125645.htm |work=Science Daily |access-date=7 November 2011 |archive-url=https://web.archive.org/web/20111228200813/http://www.sciencedaily.com/releases/2010/03/100315125645.htm |archive-date=28 December 2011 |date=15 March 2010 |url-status=dead |df=dmy }}</ref> Soil sample collection would begin immediately after the lander touched down on Phobos, with collection lasting 2–7 days. An emergency mode existed for the case of communications breakdown, which enabled the lander to automatically launch the return rocket to deliver the samples to Earth.<ref name="ASMp2"/>
The main project contractor was ], which was responsible for the space mission component development. Chief Designer of Fobos-Grunt at Lavochkin was Maksim Martynov.<ref>{{ref-ru}}</ref> Phobos soil sampling and downloading were developed by the GEOHI RAN Institute of the ] (Vernadski Institute of Geochemistry and Analytical chemistry) and the integrated scientific studies of Phobos and Mars by remote and contact methods were the responsibility of the ],<ref name="ESA_PMR"/> where the lead scientist of the mission was ].<ref name="mt_prelaunch">{{cite news|url=http://www.themoscowtimes.com/news/article/mars-moon-lander-to-return-russia-to-deep-space/447350.html|title=Mars Moon Lander to Return Russia to Deep Space |author=|publisher=The Moscow Times|date=08 Nov 2011}}</ref>


A robotic arm would have collected samples up to {{cvt|1.3|cm}} in diameter. At the end of the arm was a pipe-shaped tool which split to form a claw. The tool contained a piston which would have pushed the sample into a cylindrical container. A light-sensitive photo-diode would have confirmed whether material collection was successful and also allowed visual inspection of the digging area. The sample extraction device would have performed 15 to 20 scoops yielding a total of {{cvt|85|to|156|g}} of soil.<ref name="ASMp2">{{cite web|url=http://www.airspacemag.com/space-exploration/Mission_Possible.html?c=y&page=2 |title=Mission Possible|author=Zak}}</ref> The samples would be loaded into a capsule which would then be moved inside a special pipeline into the descent module by inflating an elastic bag within the pipe with gas.<ref name=rian_martynov_answers/> Because the characteristics of Phobos soil are uncertain, the lander included another soil-extraction device, a Polish-built drill, which would have been used in case the soil turned out to be too rocky for the main scooping device.<ref name="universetoday_daring"/><ref name="zak_bbc_rebirth"/>
===Budget===
The cost of the project was 1.5 billion rubles ($64.4 million).<ref name="en.rian.ru"/> Project funding for the timeframe 2009–2012, including post-launch operations, was about 2.4 billion rubles.<ref name="preflight">{{cite web|url=http://www.russianspaceweb.com/phobos_grunt_preflight.html|title=Preparing for flight|last=Zak|first=Anatoly|publisher=Russianspaceweb.com|accessdate=2009-05-26}}</ref> The total cost of the mission was to have been 5 billion rubles ($163 million).


After the departure of the return stage, the lander's experiments would have continued ''in situ'' on Phobos' surface for a year. To conserve power, mission control would have turned these on and off in a precise sequence. The robotic arm would have placed more samples in a chamber that would heat it and analyze its ]. This analysis might have been able to determine the presence of volatile compounds, such as water.<ref name="ASMp2"/>
===Revival of interplanetary missions===
Fobos-Grunt was the first Russian interplanetary mission since ], which suffered a launch failure. The last Russian or Soviet interplanetary mission that was successfully launched was the second probe of the ] in 1988.<ref name="mt_prelaunch"/> Fobos-Grunt would have been the first sample return mission to the natural satellite of another planet.<ref> Nasaspaceflight</ref> If successful, Fobos-Grunt would have paved the way for a number of Russian interplanetary missions, including missions to the moons of Jupiter, Saturn and Uranus, and asteroid and comet sample return missions.<ref>{{cite web|first=Anatoly|last=Zak|date=April 15, 2008|publisher=Russian Space Web|url=http://www.russianspaceweb.com/russia_2000_2010.html#sovbez |title=Russian space program: a decade review (2000–2010)}}</ref>


=== Sample return to Earth ===
According to lead scientist Alexander Zakharov, the entire spacecraft and most of the instruments were new, though the designs draw upon the nation's legacy of three successful ], which in the 1970s retrieved a few hundred grams of Moon rocks.<ref>{{cite news|url=http://www.nature.com/news/russia-takes-aim-at-phobos-1.9303|title=Russia takes aim at Phobos|publisher=Nature|date=2011-11-04}}</ref> Zakharov had described the Phobos sample return project as "possibly the most difficult interplanetary one to date."<ref name="mt_prelaunch"/>
The return stage was mounted on top of the lander. It would have needed to accelerate to {{cvt|35|km/h}} to escape Phobos' gravity. In order to avoid harming the experiments remaining at the lander, the return stage would have ignited its engine once the vehicle had been vaulted to a safe height by springs. It would then have begun maneuvers for the eventual trip to Earth, where it would have arrived in August 2014.<ref name="ASMp2"/> An 11-kg descent vehicle containing the capsule with soil samples (up to {{cvt|0.2|kg}}) would have been released on direct approach to Earth at {{cvt|12|km/s}}.<ref name="esa_spacecraft"> European Space Agency</ref> Following the aerodynamic braking to {{cvt|30|m/s}} the conical descent vehicle would perform a hard landing without a parachute within the ] test range in ].<ref name=rian_martynov_answers/><ref>{{cite web |url=https://www.popularmechanics.com/space/a7296/russias-mars-mission-gets-stuck-in-earth-orbit-6554227/|title=Russia Races to Save Its Mars Mission Stuck in Earth Orbit|publisher=Popular Mechanics|date=10 November 2011|first=Rand|last=Simberg|access-date=11 June 2019}}</ref> The vehicle did not have any radio equipment.<ref name="universetoday_daring"/> Ground-based radar and optical observations would have been used to track the vehicle's return.<ref name="zak_phobos_grunt_scenario"> Anatoly Zak</ref>


=== Summary of intended mission phases ===
===Partners===
{| class="wikitable"
The Chinese ] probe ] was launched together with Fobos-Grunt.<ref>{{cite web|url=http://www.nasaspaceflight.com/2007/05/with-a-russian-hitch-hike-china-heading-to-mars/ |title=With a Russian hitch-hike, China heading to Mars| date=May 21, 2007 |first=Chris|last=Bergin|publisher=NASAspaceflight}}</ref> In late 2012, after a 10-11.5 month cruise, Yinghuo-1 would have separated and entered a 800×80,000&nbsp;km equatorial orbit (5° inclination) with a period of three days. The spacecraft was expected to remain on Martian orbit for one year. Yinghuo-1 would have focused mainly on the study of the external environment of Mars. Space center researchers expected to use photographs and data to study the magnetic field of Mars and the interaction between ionospheres, escape particles and solar wind.<ref>{{cite web|url=http://english.peopledaily.com.cn/200705/30/eng20070530_379330.html|title =China and Russia join hands to explore Mars|publisher= ]|date=May 30, 2007|accessdate=May 31, 2007}}</ref>
|-
! Event !! Date !! Notes<ref name="galspace.spb.ru"/>
|-
| Departure from Earth orbit || 28 October – 21 November 2011 || Three course corrections of up to 130&nbsp;m/s ] foreseen during Earth-Mars cruise
|-
| Mars arrival || 25 August – 26 September 2012 || 945&nbsp;m/s braking burn to enter initial Mars parting orbit with ] = 800 ± 400&nbsp;km, ] = 79,000&nbsp;km and period of three days. Propulsion module and Yinghuo-1 separates from the rest of the craft.
|-
| Transfer to intermediate Mars orbit || October – December 2012 || 220&nbsp;m/s engine burn to raise periapsis to 6499&nbsp;km, changing the orbital period to 3.3 days and the ] to that of Phobos.
|-
| Transfer to Phobos observation orbit || December 2012 || 705&nbsp;m/s engine burn to insert the craft into an early circular orbit with an average radius of 9910&nbsp;km, i.e. about 535&nbsp;km above Phobos orbit, and orbital period = 8.3 h.
|-
| Rendezvous with Phobos || January 2013 || 45&nbsp;m/s + 20&nbsp;m/s engine burns for transfer to quasi-synchronous orbit where the probe always remains within 50..140&nbsp;km of Phobos.
|-
| Phobos landing and surface activities || End of January – beginning of April 2013 || Landing maneuver takes two hours (100&nbsp;m/s delta V trajectory changes).
|-
| Separation of Earth return vehicle (ERV) from lander || April 2013 || 10&nbsp;m/s + 20&nbsp;m/s trajectory change to enter parking orbit 300–350&nbsp;km lower than Phobos with a period of 7.23 hours.
|-
| ERV transfer orbit || Starting in August 2013 || 740&nbsp;m/s periapsis burn for insertion into 3-day elliptical transfer orbit.
|-
| ERV pre orbit insertion || Mid-August 2013 || 125&nbsp;m/s burn to change the inclination of the orbit while decreasing the periapsis distance to 500–1000&nbsp;km above the martian surface.
|-
| ERV trans-Earth injection burn || 3–23 September 2013 || Final 790&nbsp;m/s engine burn to accelerate out of Mars orbit.
|-
| ERV Earth arrival || 15–18 August 2014 || Up to five trajectory corrections (combined delta V < 130&nbsp;m/s) would be performed before atmospheric entry.
|}


=== Ground control ===
A second Chinese payload, the Soil Offloading and Preparation System (SOPSYS), was integrated into the instruments of the lander. SOPSYS was a microgravity grinding tool developed by the ].<ref>{{cite web|url=http://www.chinadaily.com.cn/china/2007-03/28/content_838049.htm|title =Chinese satellite to orbit Mars in 2009|publisher= ]|date=27 March 2007|last=Zhao |first=Huanxin}}</ref><ref>{{cite web|url=http://www.hktrader.net/200705/lead/lead-SpaceMission200705.htm|title =HK triumphs with out of this world invention |publisher= ]|date=1 May 2007}}</ref>
The ] was located at the ] (] {{in lang|ru}}, equipped with ] near ] in ].<ref>, ] (25 June 2010)</ref> ] and ] agreed in late October 2010 that the ] in ], Germany, would have controlled the probe.<ref name=tass102511>{{cite web|title=Russia's Phobos Grunt to head for Mars on November 9|agency=Itar Tass|date=25 October 2011|url=http://www.itar-tass.com/en/c154/256285.html|access-date=27 October 2011}}</ref>


Communications with the spacecraft on the initial parking orbit are described in a two-volume publication.<ref> {{webarchive|url=https://web.archive.org/web/20111112141022/http://www.novosti-kosmonavtiki.ru/phpBB2/viewtopic.php?t=12378|date=12 November 2011}}{{in lang|ru}}</ref>
Another payload on Fobos-Grunt was an experiment from the ] called ], or LIFE, which was to send 10 types of microorganisms and a natural soil colony of microbes on the three-year round trip. The results might have informed the debate about whether meteorite-riding organisms could spread life throughout the solar system.<ref name="ASMp4"/><ref>{{cite web|publisher=The Planetary Society|url=http://www.planetary.org/programs/projects/life/ |title=LIFE Experiment: Phobos}}</ref>


== Scientific critiques ==
Two ] Mars landers, developed by the ], were planned to be included as a payload of the Fobos-Grunt mission.<ref>{{cite web|publisher=Finnish Meteorological Institute|url=http://metnet.fmi.fi/index.php?id=92 |title=MetNet Mars Precursor Mission}}</ref><ref>{{cite web|publisher=Energy & Enviro Finland|date=17 October 2007|url=http://www.energy-enviro.fi/index.php?PAGE=1083&NODE_ID=1083&LANG=1 |title=Space technology&nbsp;– a forerunner in Finnish-Russian high-tech cooperation}}</ref> Due to delays in MetNet development, the landers were not ready for the initially planned 2009 launch date. At the 2011 launch window, which was not as suitable as the 2009 one, weight constraints on the Fobos-Grunt spacecraft required dropping the MetNet landers from the mission.<ref name="preflight"/>
Barry E. DiGregorio, Director of the ] (ICAMSR), criticised the ] carried by Fobos-Grunt as a violation of the ] due to the possibility of contamination of Phobos or Mars with the microbial spores and live bacteria it contains should it have lost control and crash-landed on either body.<ref>{{cite web|url=https://www.newscientist.com/article/mg20827924.300-dont-send-bugs-to-mars.html?full=true|title=Don't send bugs to Mars|last=DiGregorio|first=Barry E.|date=28 December 2010 |publisher=New Scientist|access-date=8 January 2011}}</ref> It is speculated that the heat-resistant extremophile bacteria could survive such a crash, on the basis that '']'' bacteria survived the ].<ref>{{cite journal|doi=10.1016/j.icarus.2005.12.002|title=Microbial survival in space shuttle crash|year=2006|last1=McLean|first1=R.|last2=Welsh|first2=A. |last3=Casasanto|first3=V.|journal=Icarus|volume=181|pages=323–325|pmid=21804644|issue=1|pmc=3144675|bibcode=2006Icar..181..323M}}</ref>


According to Fobos-Grunt Chief Designer ], the probability of the probe accidentally reaching the surface of Mars was much lower than the maximum specified for Category III missions, the type assigned to Fobos-Grunt and defined in ]'s ] policy (in accordance with ] of the Outer Space Treaty).<ref name="rian_martynov_answers"/><ref name="cospar_ppp"/>
The ] also installed its own radiation measurement experiment on Fobos-Grunt.<ref>{{cite web | url = http://www.space.bas.bg/ | title = Проект "Люлин-Фобос" - "Радиационно сондиране по трасето Земя-Марс в рамките на проекта "Фобос-грунт"". Международен проект по програмата за академичен обмен между ИКСИ-БАН и ИМПБ при АН на Русия - (2011-2015)| publisher = ]}}</ref>


==Critiques== == See also ==
{{Portal|Spaceflight}}
Barry E. DiGregorio, the director of the International Committee Against Mars Sample Return, criticised the ] carried by Fobos-Grunt as a violation of the ] due to the possibility of contamination of Phobos or Mars with the microbial spores and live bacteria it contains should it have lost control and crash-landed on either body.<ref>{{cite web|url=http://www.newscientist.com/article/mg20827924.300-dont-send-bugs-to-mars.html?full=true|title=Don't send bugs to Mars|last=DiGregorio|first=Barry E.|date=2010-12-28|publisher=]|accessdate=8 January 2011}}</ref> It is speculated that the heat-resistant extremophile bacteria could survive such a crash, on the basis that Microbispora bacteria survived the ].<ref>{{cite journal | doi = 10.1016/j.icarus.2005.12.002 | title = Microbial survival in space shuttle crash | year = 2006 | last1 = McLean | first1 = R | last2 = Welsh | first2 = A | last3 = Casasanto | first3 = V | journal = Icarus | volume = 181 | pages = 323–325 | pmid = 21804644 | issue = 1 | pmc = 3144675}}</ref>
* {{annotated link|List of missions to Mars}}
* {{annotated link|Mars sample return mission}}
* {{annotated link|Martian Moons Exploration}}
* {{annotated link|Phobos program}}


== References ==
However, according to Fobos-Grunt Chief Designer Maksim Martynov, the probability of the probe accidentally reaching the surface of Mars was much lower than the maximum specified for Category&nbsp;III missions, the type assigned to Fobos-Grunt and defined in ]'s ] policy (in accordance with ] of the Outer Space Treaty).<ref name=rian_martynov_answers>{{cite web | url = http://ria.ru/online/456770097.html | title = Russia resumes missions to outer space: what is after Phobos?}}{{ref-ru}}</ref><ref name=cospar_ppp>{{cite web | url =http://cosparhq.cnes.fr/Scistr/Pppolicy.htm | title =COSPAR Planetary Protection Policy}}</ref>

==References==
{{Reflist|30em}} {{Reflist|30em}}


==Further reading== == Further reading ==
*{{cite journal| author = M. Ya. Marov, V. S. Avduevsky, E. L. Akim, T. M. Eneev, R. S. Kremnevich, S. D. Kulikovich, K. M. Pichkhadzec, G. A. Popov, G. N. Rogovshyc| title = Phobos-Grunt: Russian sample return mission| journal = Advances in Space Research| year = 2004| volume = 33| issue = 12| pages = 2276–2280| doi = 10.1016/S0273-1177(03)00515-5|bibcode = 2004AdSpR..33.2276M }} * {{cite journal|author=M. Ya. Marov, V. S. Avduevsky, E. L. Akim, T. M. Eneev, R. S. Kremnev, S. D. Kulikov, K. M. Pichkhadze, G. A. Popov, G. N. Rogovsky|title=Phobos-Grunt: Russian sample return mission
|journal=Advances in Space Research|year=2004|volume=33|issue=12|pages=2276–2280|doi=10.1016/S0273-1177(03)00515-5|bibcode=2004AdSpR..33.2276M|last2=Avduevsky|last3=Akim|last4=Eneev|last5=Kremnev|last6=Kulikov
|last7=Pichkhadze|last8=Popov|last9=Rogovsky}}
*{{cite journal | doi = 10.1134/S0038094610010028 | title = Phobos sample return mission: Scientific substantiation | year = 2010 | last1 = Galimov | first1 = E. M. | journal = Solar System Research | volume = 44 | pages = 5}}
*{{cite journal | doi =10.1134/S0038094610050011 | title =Phobos-Grunt project: Devices for scientific studies | year =2010 | last1 =Zelenyi | first1 =L. M. | last2 =Zakharov | first2 =A. V. | journal =Solar System Research | volume =44 | issue =5 | pages =359}}
*{{cite journal | doi =10.1134/S0038094610050023 | title =The miniaturized Möessbauer spectrometer MIMOS II for the Phobos-Grunt mission | year =2010 | last1 =Rodionov | first1 =D. S. | last2 =Klingelhoefer | first2 =G. | last3 =Evlanov | first3 =E. N. | last4 =Blumers | first4 =M. | last5 =Bernhardt | first5 =B. | last6 =Gironés | first6 =J. | last7 =Maul | first7 =J. | last8 =Fleischer | first8 =I. | last9 =Prilutskii | first9 =O. F. | journal =Solar System Research | volume =44 | issue =5 | pages =362}}


* {{cite journal|doi=10.1134/S0038094610010028|title=Phobos sample return mission: Scientific substantiation|year=2010|last1=Galimov|first1=E. M.|journal=Solar System Research|volume=44|issue=1|pages=5–14 |bibcode=2010SoSyR..44....5G|s2cid=124416846}}
== Collaborators ==
* {{cite journal|doi=10.1134/S0038094610050011|title=Phobos-Grunt project: Devices for scientific studies|year=2010|last1=Zelenyi|first1=L. M.|last2=Zakharov|first2=A. V.|journal=Solar System Research|volume=44 |issue=5|page=359|bibcode=2010SoSyR..44..359Z|s2cid=121719627}}
<!-- {{Expand list|date=November 2011}}
* {{cite journal|doi=10.1134/S0038094610050023|title=The miniaturized Möessbauer spectrometer MIMOS II for the Phobos-Grunt mission|year=2010|last1=Rodionov|first1=D. S.|last2=Klingelhoefer|first2=G. |last3=Evlanov|first3=E. N.|last4=Blumers|first4=M.|last5=Bernhardt|first5=B.|last6=Gironés|first6=J.|last7=Maul|first7=J.|last8=Fleischer|first8=I.|last9=Prilutskii|first9=O. F.|last10=Shlyk|first10=A. F.
See article in Russian for more countries are we missing anyone? -->
|last11=Linkin|first11=V. M.|last12=d'Uston|first12=C.|journal=Solar System Research|volume=44|issue=5|page=362|bibcode=2010SoSyR..44..362R|s2cid=122144645|display-authors=8}}
{{RUS}} {{·w}} {{CHN}} {{·w}} {{HKG}} {{·w}} {{BUL}} {{·w}} {{POL}} {{·w}} {{USA}} {{·w}} {{GER}} {{·w}} {{FRA}} {{·w}} {{CHE}} {{·w}} {{JPN}} {{·w}} {{SWE}} {{·w}} {{UKR}} {{·w}} ] (multinational)


==External links== ==External links==
{{Commons category|Phobos-Grunt mission}} {{Commons category|Phobos-Grunt}}
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{{Mars spacecraft}} {{Mars spacecraft}}
{{Failed Mars missions}}
{{Russian space program}} {{Russian space program}}
{{Astrobiology}}
{{Orbital launches in 2011}}


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Latest revision as of 01:22, 10 November 2024

A failed spacecraft mission to Mars

Fobos-Grunt
Model of Fobos-Grunt spacecraft at the 2011 Paris Air Show
NamesPhobos-Grunt
Фобос-Грунт
Phobos-Ground
Mission typePhobos lander
Sample return
OperatorRoscosmos
COSPAR ID2011-065A Edit this at Wikidata
SATCAT no.37872
Mission duration3 years (planned)
Failed in Earth orbit
Spacecraft properties
ManufacturerLavochkin, Russian Space Research Institute
Launch mass13,505 kg (29,773 lb)
Dry mass2,300 kg (5,100 lb)
Power1 kW (main orbiter/lander) + 300 W (Earth return vehicle)
Start of mission
Launch date8 November 2011, 20:16:02 UTC
RocketZenit-2SB41
Launch siteBaikonur Cosmodrome, Site 45/1
ContractorYuzhmash
Entered serviceFailed on orbit
End of mission
Last contact24 November 2011
Decay date15 January 2012, 17:46 UTC
Orbital parameters
Reference systemGeocentric orbit
RegimeLow Earth orbit
Perigee altitude207 km (129 mi)
Apogee altitude342 km (213 mi)
Inclination51.43°
Period90.0 minutes
Instruments
GAPSoil molecular composition analysis
MDGFGamma-ray spectrometer
MAINNeutron spectrometer
LazmaMass spectrometer flight time
MANAGAMass spectrometer
THERMOFOBThermic probe
RLRRadar
Seismo-1Seismometer
MIMOSMössbauer spectrometer
METEOR-FMicrometeoroids detector
DIAMONDDust detector
FPMSPlasma analysis
AOSTFourier-transform infrared spectrometer
TIMM-2Solar occultation spectrometer
MicrOmegaSpectral microscope
TSNGCameras
Russian Mars programme← Mars 96Mars-Grunt →

Fobos-Grunt or Phobos-Grunt (Russian: Фобос-Грунт, where грунт refers to the ground in the narrow geological meaning of any type of soil or rock exposed on the surface) was an attempted Russian sample return mission to Phobos, one of the moons of Mars. Fobos-Grunt also carried the Chinese Mars orbiter Yinghuo-1 and the tiny Living Interplanetary Flight Experiment funded by the Planetary Society.

It was launched on 8 November 2011, at 20:16 UTC, from the Baikonur Cosmodrome, but subsequent rocket burns intended to set the craft on a course for Mars failed, leaving it stranded in low Earth orbit. Efforts to reactivate the craft were unsuccessful, and it fell back to Earth in an uncontrolled re-entry on 15 January 2012, over the Pacific Ocean, west of Chile. The return vehicle was to have returned to Earth in August 2014, carrying up to 200 g (7.1 oz) of soil from Phobos.

Funded by the Russian Federal Space Agency and developed by Lavochkin and the Russian Space Research Institute, Fobos-Grunt was the first Russian-led interplanetary mission since the failed Mars 96. The last successful interplanetary missions were the Soviet Vega 2 in 1985–1986, and the partially successful Phobos 2 in 1988–1989. Fobos-Grunt was designed to become the first spacecraft to return a macroscopic sample from an extraterrestrial body since Luna 24 in 1976.

Project history

Budget

The cost of the project was 1.5 billion rubles (US$64.4 million). Project funding for the timeframe 2009–2012, including post-launch operations, was about 2.4 billion rubles. The total cost of the mission was to have been 5 billion rubles (US$163 million).

According to lead scientist Alexander Zakharov, the entire spacecraft and most of the instruments were new, though the designs drew upon the nation's legacy of three successful Luna missions, which in the 1970s retrieved a few hundred grams of Moon rocks. Zakharov had described the Phobos sample return project as "possibly the most difficult interplanetary one to date".

Development

See also: Space industry of Russia
Image of Phobos. The Fobos-Grunt project began with the feasibility study of a Phobos sample-return mission in 1999.
Mockup of the spacecraft's main propulsion unit

The Fobos-Grunt project began in 1999, when the Russian Space Research Institute and NPO Lavochkin, the main developer of Soviet and Russian interplanetary probes, initiated a 9 million rouble feasibility study into a Phobos sample-return mission. The initial spacecraft design was to be similar to the probes of the Phobos program launched in the late 1980s. Development of the spacecraft started in 2001 and the preliminary design was completed in 2004. For years, the project stalled as a result of low levels of financing of the Russian space program. This changed in the summer of 2005, when the new government plan for space activities in 2006–2015 was published. Fobos-Grunt was now made one of the program's flagship missions. With substantially improved funding, the launch date was set for October 2009. The 2004 design was revised a couple of times and international partners were invited to join the project. In June 2006, NPO Lavochkin announced that it had begun manufacturing and testing the development version of the spacecraft's onboard equipment.

On 26 March 2007, Russia and China signed a cooperative agreement on the joint exploration of Mars, which included sending China's first interplanetary probe, Yinghuo-1, to Mars together with the Fobos-Grunt spacecraft. Yinghuo-1 weighed 115 kg (254 lb) and would have been released by the main spacecraft into a Mars orbit.

Partners

NPO Lavochkin was the project's main contractor developing its components. The Chief Designer of Fobos-Grunt was Maksim Martynov. Phobos soil sampling and downloading were developed by the GEOHI RAN Institute of the Russian Academy of Sciences (Vernadski Institute of Geochemistry and Analytical chemistry) and the integrated scientific studies of Phobos and Mars by remote and contact methods were the responsibility of the Russian Space Research Institute, where Alexander Zakharov served as lead scientist of the mission.

The Chinese Yinghuo-1 orbiter was launched together with Fobos-Grunt. In late 2012, after a 10–11.5-month cruise, Yinghuo-1 would have separated and entered an 800 × 80,000 km equatorial orbit (5° inclination) with a period of three days. The spacecraft was expected to remain on Martian orbit for one year. Yinghuo-1 would have focused mainly on the study of the external environment of Mars. Space center researchers expected to use photographs and data to study the magnetic field of Mars and the interaction between ionospheres, escape particles and solar wind.

A second Chinese payload, the Soil Offloading and Preparation System (SOPSYS), was integrated in the lander. SOPSYS was a microgravity grinding tool developed by the Hong Kong Polytechnic University.

Another payload on Fobos-Grunt was an experiment from the Planetary Society called Living Interplanetary Flight Experiment; its goal was to test whether selected organisms can survive a few years in deep space by flying them through interplanetary space. The experiment would have tested one aspect of transpermia, the hypothesis that life could survive space travel, if protected inside rocks blasted by impact off one planet to land on another.

The Bulgarian Academy of Sciences contributed with a radiation measurement experiment on Fobos-Grunt.

Two MetNet Mars landers developed by the Finnish Meteorological Institute, were planned to be included as payload of the Fobos-Grunt mission, but weight constraints on the spacecraft required dropping the MetNet landers from the mission.

Postponed 2009 launch

The October 2009 launch date could not be achieved due to delays in the spacecraft development. During 2009, officials admitted that the schedule was very tight, but still hoped until the last moment that a launch could be made. On 21 September 2009, the mission was officially announced to be delayed until the next launch window in 2011. A main reason for the delay was difficulties encountered during development of the spacecraft's onboard computers. While the Moscow-based company Tehkhom provided the computer hardware on time, the internal NPO Lavochkin team responsible for integration and software development fell behind schedule. The retirement of NPO Lavochkin's head Valeriy N. Poletskiy in January 2010 was widely seen as linked to the delay of Fobos-Grunt. Viktor Khartov was appointed the new head of the company. During the extra development time resulting from the delay, a Polish-built drill was added to the Phobos lander as a back-up soil extraction device.

2011 launch

The spacecraft arrived at Baikonur Cosmodrome on 17 October 2011 and was transported to Site 31 for pre-launch processing. The Zenit-2SB41 launch vehicle carrying Fobos-Grunt successfully lifted off from Baikonur Cosmodrome at 20:16 UTC on 8 November 2011. The Zenit booster inserted the spacecraft into an initial 207 km × 347 km (129 mi × 216 mi) elliptical low Earth orbit with an inclination of 51.4°.

Two firings of the main propulsion unit in Earth orbit were required to send the spacecraft onto the interplanetary trajectory. Since both engine ignitions would have taken place outside the range of Russian ground stations, the project participants asked volunteers around the world to take optical observations of the burns, e.g. with telescopes, and report the results to enable more accurate prediction of the mission flight path upon entry into the range of Russian ground stations.

Post-launch

Overview of planned trajectories.
  • 1. Baikonour launch
  • 2. First Burn
  • 3. Spent fuel tank ejected
  • 4. Second Burn (Departure to Martian system)

It was expected that after 2.5 hours and 1.7 revolutions in the initial orbit, the autonomous main propulsion unit (MDU), derived from the Fregat upper stage, would conduct its firing to insert the spacecraft into the elliptical orbit (250 km x 4150–4170 km) with a period of about 2.2 hours. After the completion of the first burn, the external fuel tank of the propulsion unit was expected to be jettisoned, with ignition for a second burn to depart Earth orbit scheduled for one orbit, or 2.1 hours, after the end of the first burn. The propulsion module constitutes the cruise-stage bus of Fobos-Grunt. According to original plans, Mars orbit arrival had been expected during September 2012 and the return vehicle was scheduled to reach Earth in August 2014.

Following what would have been the planned end of the first burn, the spacecraft could not be located in the target orbit. The spacecraft was subsequently discovered to still be in its initial parking orbit and it was determined that the burn had not taken place. Initially, engineers had about three days from launch to rescue the spacecraft before its batteries ran out. It was then established that the craft's solar panels had deployed, giving engineers more time to restore control. It was soon discovered the spacecraft was adjusting its orbit, changing its expected re-entry from late November or December 2011 to as late as early 2012. Even though it had not been contacted, the spacecraft seemed to be actively adjusting its perigee (the point it is closest to Earth in its orbit).

Contact

On 22 November 2011, a signal from the probe was picked up by the European Space Agency's tracking station in Perth, Australia, after it had sent the probe the command to turn on one of its transmitters. The European Space Operations Centre (ESOC) in Darmstadt, Germany, reported that the contact was made at 20:25 UTC on 22 November 2011 after some modifications had been made to the 15 metres (49 ft) dish facility in Perth to improve its chances of getting a signal. No telemetry was received in this communication. It remained unclear whether the communications link would have been sufficient to command the spacecraft to switch on its engines to take it on its intended trajectory toward Mars. Roscosmos officials said that the window of opportunity to salvage Fobos-Grunt would close in early December 2011.

The next day, on 23 November 2011, the Perth station again made contact with the spacecraft and during 6 minutes, about 400 telemetry "frames" and Doppler information were received. The amount of information received during this communication was not sufficient, and therefore it was not possible to identify the problem with the probe. Further communication attempts made by ESA were unsuccessful and contact was not reestablished. The space vehicle did not respond to the commands sent by the European Space Agency to raise its orbit. Roscosmos provided these commands to ESA.

From Baikonour, Kazakhstan, Roscosmos was able to receive telemetry from Fobos-Grunt on 24 November 2011 but attempts to contact it failed. This telemetry demonstrated that the probe's radio equipment was working and that it was communicating with the spacecraft's flight control systems. Moreover, Roscosmos's top officials believed Fobos-Grunt to be functional, stably oriented and charging batteries through its solar panels.

In a late November 2011 interview, the service manager of the European Space Agency for Fobos-Grunt, Wolfgang Hell, stated that Roscosmos had a better understanding of the problem with the spacecraft, saying they reached the conclusion that they have some kind of power problem on board.

ESA failed to communicate with the space probe in all of the five opportunities the agency had between 28 and 29 November 2011. During those occasions, the spacecraft did not comply with orders to fire the engines and raise its orbit. The Russian space agency then requested that ESA repeat the orders. The European Space Agency decided to end the efforts to contact the probe on 2 December 2011, with one analyst saying that Fobos-Grunt appeared "dead in the water". However, ESA made teams available to assist the Fobos-Grunt mission if there was a change in situation. In spite of that, Roscosmos stated its intention to continue to try to contact the space vehicle until it entered the atmosphere.

The U.S. Strategic Command's Joint Space Operations Center (JSpOC) tracked the probe and identified at the start of December 2011 that Fobos-Grunt had an elliptical Earth orbit at an altitude of between 209 km (130 mi) and 305 km (190 mi), but falling a few kilometers each day.

Re-entry

Before reentry, the spacecraft still carried about 7.51 tonnes of highly toxic hydrazine and nitrogen tetroxide on board. This was mostly fuel for the spacecraft's upper stage. These compounds, with melting points of 2 °C and −11.2 °C, are normally kept in liquid form and were expected to burn out during re-entry. NASA veteran James Oberg said the hydrazine and nitrogen tetroxide "could freeze before ultimately entering", thus contaminating the impact area. He also stated that if Fobos-Grunt were not salvaged, it may be the most dangerous object to fall from orbit. Meanwhile, the head of Roscosmos said the probability of parts reaching the Earth surface was "highly unlikely" and that the spacecraft, including the LIFE module and the Yinghuo-1 orbiter, would be destroyed during re-entry.

Russian military sources claimed that Fobos-Grunt was somewhere over the Pacific Ocean between New Zealand and South America when it re-entered the atmosphere at about 17:45 UTC. Although it was initially feared its remains would reach land as close as 145 kilometres (90 mi) west of Santa Fe, Argentina, the Russian military Air and Space Defense Forces reported that it ultimately fell into the Pacific Ocean, 1,247 km (775 mi) west of Wellington Island, Chile. The Defence Ministry spokesman subsequently revealed that such estimate was based on calculations, without witness reports. In contrast, Russian civilian ballistic experts said that the fragments had fallen over a broader patch of Earth's surface, and that the midpoint of the crash zone was located in the Goiás state of Brazil.

Aftermath

Initially, the head of Roscosmos Vladimir Popovkin, suggested that the Fobos-Grunt failure might have been the result of sabotage by a foreign nation. He also stated that risky technical decisions had been made because of limited funding. On 17 January 2012, an unidentified Russian official speculated that a U.S. radar stationed on the Marshall Islands may have inadvertently disabled the probe, but cited no evidence. Popovkin suggested the microchips may have been counterfeit, then he announced on 1 February 2012 that a burst of cosmic radiation may have caused computers to reboot and go into a standby mode. Industry experts cast doubt on the claim citing how unlikely the effects of such a burst are in low Earth orbit, inside the protection of Earth's magnetic field.

On 6 February 2012, the commission investigating the mishap concluded that Fobos-Grunt mission failed because of "a programming error which led to a simultaneous reboot of two working channels of an onboard computer". The craft's rocket pack never fired due to the computer reboot, leaving the craft stranded in Earth orbit. Although the specific failure was identified, experts suggest it was the culmination of poor quality control, lack of testing, security issues and corruption. Russian president Dmitry Medvedev suggested that those responsible should be punished and perhaps criminally prosecuted.

Repeat mission

In January 2012, scientists and engineers at the Russian Space Research Institute and NPO Lavochkin called for a repeat sample return mission called Fobos-Grunt-2 and Boomerang for launch in 2020. Popovkin declared that they would soon attempt to repeat the Fobos-Grunt mission, if an agreement was not reached for Russian co-operation in the European Space Agency's ExoMars program. However, since an agreement was reached for the inclusion of Russia as a full project partner, some instruments originally developed for Fobos-Grunt were flown in the ExoMars Trace Gas Orbiter.

On 2 August 2014, the Russian Academy of Sciences stated that the Phobos-Grunt repeat mission might be restarted for a launch approximately in 2024. In August 2015, the ESA-Roscosmos working group on post-ExoMars cooperation, completed a joint study for a possible future Phobos sample return mission, preliminary discussions were held, and in May 2015 the Russian Academy of Sciences submitted a budget proposal.

As of September 2023, Roscosmos intended to launch Boomerang "after 2030".

Boomerang is intended to be the first stage of the Russian Mars sample return mission called Mars-Grunt. This Mars sample-return mission would be developed from the technologies demonstrated by Fobos-Grunt-2.

Objectives

Fobos-Grunt was an intended interplanetary probe that included a lander to study Phobos and a sample return vehicle to return a sample of about 200 g (7.1 oz) of soil to Earth. It was also to study Mars from orbit, including its atmosphere and dust storms, plasma and radiation.

Science goals
  • Delivery of samples of Phobos soil to Earth for scientific research of Phobos, Mars and Martian vicinity;
  • In situ and remote studies of Phobos (to include analysis of soil samples);
  • Monitoring the atmospheric behavior of Mars, including the dynamics of dust storms;
  • Studies of the vicinity of Mars, including its radiation environment, plasma and dust;
  • Study of the origin of the Martian moons and their relation to Mars;
  • Study of the role played by asteroid impacts in the formation of terrestrial planets;
  • Search for possible past or present life (biosignatures);
  • Study of the impact of a three-year interplanetary round-trip journey on extremophile microorganisms in a small sealed capsule (LIFE experiment).

Payload

Modules -- A: lander, B: return module, C: reentry vehicle (not shown). Major components -- 1: solar panels, 2: reaction wheels, 3: landing gear, 4: robotic sample arm (second arm not shown), 6: sample transfer container, 7: attitude control thrusters, 8 and 10: fuel and helium tanks, 9: return module solar panels. Scientific instruments (some instruments are not visible from this angle or are not present on the model) -- a: Termofob thermodetector, b: GRAS-F seismogravimeter; c: METEOR-F cosmic dust detector, d: GAP (Gas Analytic Package) pyrolizer/thermal-differential analyzer, e: GAP chromatograph; f: GAP mass spectrometer, g: LAZMA mass spectrometer, h: MANAGA mass spectrometer, i: FPMS dust detector
  • TV system for navigation and guidance (TSNN)
  • Gas Analysis Package:
    • Thermal Differential Analyzer (TDA)
    • Gas-Chromatograph (KhMS-1F)
    • Mass-Spectrometer (MAL-1F)
  • Gamma ray spectrometer (FOGS)
  • Neutron spectrometer (KhEND)
  • Laser Time-of-Flight Mass Spectrometer (LAZMA)
  • Mössbauer Spectrometer (MIMOS-II)
  • Thermal Detector (TERMO-FOB)
  • Fourier Spectrometer (AOST)
  • Echelle Spectrometer (TIMM)
  • Seismogravimeter (GRAS-F)
  • Seismometer (SEISMO)
  • Long-wave radar (DPR)
  • Visible and near-infrared microscopes (MicrOmega)
  • Dust counter (Meteor-F)
  • Dosimeter (Liulin-F)
  • Secondary Ion Mass Spectrometer (MANAGA-F)
  • Optical solar & star sensor (LIBRATsIYa)
  • Plasma Complex (FPMS)
    • Fluxgate magnetometer (DFM)
    • Inductive magnetic sensor (KVD)
    • Ion mass spectrometer (DIM)
    • Ion mass spectrometer (DI)
  • Ultrastable Oscillator (USO1)
  • Ionospheric parameters experiment together with Yinghuo-1 (YH-1) spacecraft (MROE)
  • BioPhobos/Anabioz
  • BioPhobos/LIFE (Living Interplanetary Flight Experiment)

Mass summary

Spacecraft components Mass
Lander sample capsule 7 kg (15 lb)
Earth return vehicle (tot.): 287 kg (633 lb)
-Propellant (for trans-Earth injection maneuvers) 139 kg (306 lb)
-Dry mass 148 kg (326 lb)
Orbiter/lander instrument compartment 550 kg (1,210 lb)
Orbiter/lander (tot.): 1,270 kg (2,800 lb)
-Propellant (for Phobos rendezvous and landing) 1,058 kg (2,332 lb)
-Dry mass 212 kg (467 lb)
Phobos-Grunt/Yinghuo/MPU truss adapter 150 kg (330 lb)
"Yinghuo 1" subsatellite 115 kg (254 lb)
Main propulsion unit (MPU) stage, excluding external propellant tank: 7,750 kg (17,090 lb)
-Propellant (for trans-Mars injection burn and initial 800 km × 75,900 km (500 mi × 47,160 mi) Mars orbit insertion) 7,015 kg (15,465 lb)
-Dry mass 735 kg (1,620 lb)
External propellant tank: 3,376 kg (7,443 lb)
-Propellant (for 250 km × 4,710 km (160 mi × 2,930 mi) Earth parking orbit insertion) 3,001 kg (6,616 lb)
-Dry mass 375 kg (827 lb)
Total mass 13,505 kg (29,773 lb)

Mission plan

Journey

The spacecraft's journey to Mars would take about ten months. After arriving in Mars orbit, the main propulsion unit and the transfer truss would separate and the Chinese Mars orbiter would be released. Fobos-Grunt would then spend several months studying the planet and its moons from orbit, before landing on Phobos. It was imperative to prevent the introduction to Mars of contaminants from Earth; according to Fobos-Grunt Chief Designer Maksim Martynov, the probability of the probe accidentally reaching the surface of Mars was much lower than the maximum specified for Category III missions, the type assigned to Fobos-Grunt and defined in COSPAR's planetary protection policy (in accordance with Article IX of the Outer Space Treaty).

Phobos-Grunt around Mars: (1) Arrival of Phobos-Grunt, (2) Insertion maneuver in orbit around Mars, (3) Drop of the Fregat stage and separation of the probe and Yinghuo-1, (4) Maneuver for to raise the periapsis, (5) Yinghuo 1 starts his mission on the first orbit, (6) Maneuver to place himself in an orbit close to that of Phobos; (A) Orbit of Phobos, (B) Orbit of insertion of Phobos-Grunt and Yinghuo-1, (C) Orbit with raised periapsis, (D) Quasi-synchronous orbit with Phobos.

On Phobos

The planned landing site at Phobos was a region from 5°S to 5°N, 230° to 235°E. Soil sample collection would begin immediately after the lander touched down on Phobos, with collection lasting 2–7 days. An emergency mode existed for the case of communications breakdown, which enabled the lander to automatically launch the return rocket to deliver the samples to Earth.

A robotic arm would have collected samples up to 1.3 cm (0.51 in) in diameter. At the end of the arm was a pipe-shaped tool which split to form a claw. The tool contained a piston which would have pushed the sample into a cylindrical container. A light-sensitive photo-diode would have confirmed whether material collection was successful and also allowed visual inspection of the digging area. The sample extraction device would have performed 15 to 20 scoops yielding a total of 85 to 156 g (3.0 to 5.5 oz) of soil. The samples would be loaded into a capsule which would then be moved inside a special pipeline into the descent module by inflating an elastic bag within the pipe with gas. Because the characteristics of Phobos soil are uncertain, the lander included another soil-extraction device, a Polish-built drill, which would have been used in case the soil turned out to be too rocky for the main scooping device.

After the departure of the return stage, the lander's experiments would have continued in situ on Phobos' surface for a year. To conserve power, mission control would have turned these on and off in a precise sequence. The robotic arm would have placed more samples in a chamber that would heat it and analyze its emission spectra. This analysis might have been able to determine the presence of volatile compounds, such as water.

Sample return to Earth

The return stage was mounted on top of the lander. It would have needed to accelerate to 35 km/h (22 mph) to escape Phobos' gravity. In order to avoid harming the experiments remaining at the lander, the return stage would have ignited its engine once the vehicle had been vaulted to a safe height by springs. It would then have begun maneuvers for the eventual trip to Earth, where it would have arrived in August 2014. An 11-kg descent vehicle containing the capsule with soil samples (up to 0.2 kg (0.44 lb)) would have been released on direct approach to Earth at 12 km/s (7.5 mi/s). Following the aerodynamic braking to 30 m/s (98 ft/s) the conical descent vehicle would perform a hard landing without a parachute within the Sary Shagan test range in Kazakhstan. The vehicle did not have any radio equipment. Ground-based radar and optical observations would have been used to track the vehicle's return.

Summary of intended mission phases

Event Date Notes
Departure from Earth orbit 28 October – 21 November 2011 Three course corrections of up to 130 m/s delta V foreseen during Earth-Mars cruise
Mars arrival 25 August – 26 September 2012 945 m/s braking burn to enter initial Mars parting orbit with periapsis = 800 ± 400 km, apoapsis = 79,000 km and period of three days. Propulsion module and Yinghuo-1 separates from the rest of the craft.
Transfer to intermediate Mars orbit October – December 2012 220 m/s engine burn to raise periapsis to 6499 km, changing the orbital period to 3.3 days and the orbital inclination to that of Phobos.
Transfer to Phobos observation orbit December 2012 705 m/s engine burn to insert the craft into an early circular orbit with an average radius of 9910 km, i.e. about 535 km above Phobos orbit, and orbital period = 8.3 h.
Rendezvous with Phobos January 2013 45 m/s + 20 m/s engine burns for transfer to quasi-synchronous orbit where the probe always remains within 50..140 km of Phobos.
Phobos landing and surface activities End of January – beginning of April 2013 Landing maneuver takes two hours (100 m/s delta V trajectory changes).
Separation of Earth return vehicle (ERV) from lander April 2013 10 m/s + 20 m/s trajectory change to enter parking orbit 300–350 km lower than Phobos with a period of 7.23 hours.
ERV transfer orbit Starting in August 2013 740 m/s periapsis burn for insertion into 3-day elliptical transfer orbit.
ERV pre orbit insertion Mid-August 2013 125 m/s burn to change the inclination of the orbit while decreasing the periapsis distance to 500–1000 km above the martian surface.
ERV trans-Earth injection burn 3–23 September 2013 Final 790 m/s engine burn to accelerate out of Mars orbit.
ERV Earth arrival 15–18 August 2014 Up to five trajectory corrections (combined delta V < 130 m/s) would be performed before atmospheric entry.

Ground control

The mission control center was located at the Center for Deep Space Communications (Национальный центр управления и испытаний космических средств (in Russian), equipped with RT-70 radio telescope near Yevpatoria in Crimea. Russia and Ukraine agreed in late October 2010 that the European Space Operations Centre in Darmstadt, Germany, would have controlled the probe.

Communications with the spacecraft on the initial parking orbit are described in a two-volume publication.

Scientific critiques

Barry E. DiGregorio, Director of the International Committee Against Mars Sample Return (ICAMSR), criticised the LIFE experiment carried by Fobos-Grunt as a violation of the Outer Space Treaty due to the possibility of contamination of Phobos or Mars with the microbial spores and live bacteria it contains should it have lost control and crash-landed on either body. It is speculated that the heat-resistant extremophile bacteria could survive such a crash, on the basis that Microbispora bacteria survived the Space Shuttle Columbia disaster.

According to Fobos-Grunt Chief Designer Maksim Martynov, the probability of the probe accidentally reaching the surface of Mars was much lower than the maximum specified for Category III missions, the type assigned to Fobos-Grunt and defined in COSPAR's planetary protection policy (in accordance with Article IX of the Outer Space Treaty).

See also

References

  1. ^ Fobos-Grunt sent to Baikonur Archived 19 October 2011 at the Wayback Machine (in Russian)
  2. ^ "Конструкция АМС "Фобос-Грунт"". galspace.spb.ru. Retrieved 1 July 2018.
  3. ^ Vítek, Antonín (25 January 2012). "2011-065A – Fobos-Grunt". Space 40 (in Czech). Retrieved 9 September 2018.
  4. Amos, Jonathan (9 November 2011). "Phobos-Grunt Mars probe loses its way just after launch". BBC News.
  5. Lakdawalla, Emily (16 December 2012). Phobos-Grunt is no more. Planetary Society. Archived from the original on 19 January 2012.
  6. ^ Molczan, Ted (9 November 2011). "Phobos-Grunt – serious problem reported". SeeSat-L. Retrieved 9 November 2011.
  7. ^ Vladimir Ischenkov – Russian scientists struggle to save Mars moon probe (9 November 2011) – Associated Press
  8. "Russia's failed Phobos-Grunt space probe heads to Earth", BBC News, 14 January 2012
  9. ^ "Russian space probe crashes into Pacific Ocean". Fox News Channel. 15 January 2012. Archived from the original on 15 January 2012.
  10. "Russia asks if US radar ruined Phobos-Grunt space probe", NBC News, 17 January 2012
  11. "Jonathan's Space Report No.650 2011 November 16". Archived from the original on 9 September 2012.
  12. ^ "Daring Russian Sample Return mission to Martian Moon Phobos aims for November Liftoff". Universe Today. 13 October 2011.
  13. ^ Zak, Anatoly. "Preparing for flight". RussianSpaceWeb.com. Retrieved 26 May 2009.
  14. "Russia takes aim at Phobos". Nature. 4 November 2011.
  15. ^ "Mars Moon Lander to Return Russia to Deep Space". The Moscow Times. 8 November 2011.
  16. ^ Harvey, Brian (2007). "Resurgent – the new projects". The Rebirth of the Russian Space Program (1st ed.). Germany: Springer. pp. 326–330. ISBN 978-0-387-71354-0.
  17. ^ Mike Wall (14 November 2011). "Russia Still Trying to Contact Stranded Mars Moon Probe". SPACE.com. Retrieved 20 May 2012.
  18. Biography of Maksim Martynov(in Russian)
  19. ^ "Phobos-Grunt". European Space Agency. 25 October 2004. Retrieved 26 May 2009.
  20. Bergin, Chris (21 May 2007). "With a Russian hitch-hike, China heading to Mars". NASAspaceflight.
  21. "China and Russia join hands to explore Mars". People's Daily. 30 May 2007. Retrieved 31 May 2007.
  22. Zhao, Huanxin (27 March 2007). "Chinese satellite to orbit Mars in 2009". China Daily.
  23. "HK triumphs with out of this world invention". HK Trader. 1 May 2007. Archived from the original on 13 February 2012. Retrieved 21 November 2008.
  24. "Projects: LIFE Experiment: Phobos". The Planetary Society. Archived from the original on 16 March 2011. Retrieved 2 April 2011.
  25. "Living interplanetary flight experiment (LIFE): An experiment on the survivalability of microorganisms during interplanetary travel" (PDF). Retrieved 1 July 2018.
  26. Zak, Anatoly (1 September 2008). "Mission Possible". Air & Space Magazine. Smithsonian Institution. Retrieved 26 May 2009.
  27. ^ Zak, Anatoly (1 September 2008). "Mission Possible – A new probe to a Martian moon may win back respect for Russia's unmanned space program". AirSpaceMag.com. Retrieved 26 May 2009.
  28. "LIFE Experiment: Phobos". The Planetary Society. Archived from the original on 17 February 2010. Retrieved 4 August 2008.
  29. "Проект "Люлин-Фобос" – "Радиационно сондиране по трасето Земя-Марс в рамките на проекта "Фобос-грунт"". Международен проект по програмата за академичен обмен между ИКСИ-БАН и ИМПБ при АН на Русия – (2011–2015)". Bulgarian Academy of Sciences.
  30. "MetNet Mars Precursor Mission". Finnish Meteorological Institute. Archived from the original on 19 October 2010.
  31. "Space technology – a forerunner in Finnish-Russian high-tech cooperation". Energy & Enviro Finland. 17 October 2007. Archived from the original on 17 March 2009.
  32. "Fobos-Grunt probe launch is postponed to 2011" (in Russian). RIA Novosti. 21 September 2009. Retrieved 21 September 2009.
  33. "Russia delays Mars probe launch until 2011: report". Space Daily. 16 September 2009.
  34. Zak, Anatoly (April 2009). "Russia to Delay Martian Moon Mission". IEEE Spectrum. Retrieved 26 May 2009.
  35. "Industry Insiders Foresaw Delay of Russia's Phobos-Grunt". SpaceNews. 5 October 2009. Archived from the original on 2 February 2013.
  36. ^ "Difficult rebirth for Russian space science". BBC News. 29 June 2010.
  37. "Phobos-Grunt project in 2011". RussianSpaceWeb.com. Retrieved 1 July 2018.
  38. ^ Mission profile Phobos-Soil project Archived 24 August 2014 at the Wayback Machine
  39. "We need your support in the project "Phobos-Soil"". Russian Space Research Institute. 2011. Archived from the original on 24 August 2014. Retrieved 22 April 2012.
  40. "Phobos-Grunt to be launched to Mars on November 8". Interfax News. 4 October 2011. Retrieved 5 October 2011.
  41. "Fobos-Grunt space probe is moved to a refueling station" (in Russian). Roscosmos. 21 October 2011. Archived from the original on 2 April 2012. Retrieved 21 October 2011.
  42. "Timeline for the Phobos Sample Return Mission (Phobos Grunt)". Planetary Society. 27 October 2010. Archived from the original on 28 November 2010. Retrieved 28 October 2010.
  43. ^ David Warmflash, M.D. – Phobos-Grunt's Mysterious Thruster Activation: A Function of Safe Mode or Just Good Luck? (16 November 2011) – Universe Today
  44. Роскосмос признал, что шансов реализовать миссию "Фобос-Грунт" практически не осталось (in Russian).
  45. Amos, Jonathan (23 November 2011). "Signal picked from Russia's stranded Mars probe". BBC News.
  46. ^ Clark, Stephen (23 November 2011). "It's alive! Russia's Phobos-Grunt probe phones home". Spaceflight Now.
  47. ^ Peter B. de Selding (23 November 2011). "ESA Makes Contact with Russia's Stranded Phobos-Grunt Spacecraft". SpaceNews. Archived from the original on 3 February 2013. Retrieved 20 May 2012.
  48. "ESA receives telemetry from Russian Mars probe". RIA Novosti. 24 November 2011.
  49. ^ "Russia's Mars probe starts making regular contact". MSN News. 23 November 2011. Retrieved 20 May 2012.
  50. ^ Denise Chow (2 December 2011). "Is Phobos-Grunt dead? Europeans end rescue effort". NBC News. Archived from the original on 24 September 2020. Retrieved 20 May 2012.
  51. Denise Chow (2 December 2011). "Is Phobos-Grunt Dead? Troubled Russian Probe Still Unresponsive". NBC News. Archived from the original on 24 August 2014. Retrieved 20 May 2012.
  52. Leonard David (22 November 2011). "Time Running Out to Save Russian Mars Moon Probe". Retrieved 14 May 2012.
  53. Genalyn Corocoto (30 November 2011). "Phobos-Grunt: ESA's Latest Orbit Raising Maneuvers Fail, Re-entry Expected in January". International Business Times. Archived from the original on 1 July 2012. Retrieved 20 May 2012.
  54. Leonard David (6 December 2011). "Russia's Mars Probe Appears 'Dead in the Water'". Retrieved 12 May 2012.
  55. Michael Listner (14 November 2011). "Phobos-Grunt: a legal analysis of potential liability and options for mitigation". The Space Review. Retrieved 20 May 2012.
  56. "Most Popular E-mail Newsletter". USA Today. 1 December 2011.
  57. "Ballistics confirmed the coordinates of the fall of the "Phobos-Grunt" (Google Translate from Russian: Баллистики подтвердили координаты точки падения "Фобос-Грунта")". RIA Novosti. 16 January 2012. Retrieved 16 January 2012.
  58. Sanderson, Katharine (18 January 2012). "Phobos-Grunt Crashes into the Pacific". Astrobiology Magazine. Archived from the original on 25 September 2020. Retrieved 28 March 2012.
  59. "Foreign sabotage suspected in Phobos-Grunt meltdown", theregister.co.uk, 10 January 2012
  60. "Russian space chief claims space failures may be sabotage", NBC News, 10 January 2012
  61. Bloomberg (17 January 2011). "Oops! Radar may have caused space crash". Sidney Morning Herald. Retrieved 20 May 2012.
  62. ^ "Phobos-Grunt chips supposedly were counterfeit". ITAR-TASS News Agency. 31 January 2012. Retrieved 29 February 2012. heavy charged particles of space, which caused malfunction of the memory system during the second circuit in the orbit ... may have been counterfeit
  63. Oberg, James (16 February 2012). "Did Bad Memory Chips Down Russia's Mars Probe?". IEEE Spectrum. Retrieved 30 March 2012.
  64. Vergano, Dan (8 January 2012). "Underfunding doomed Russian Mars probe, lawyer says". USA TODAY. Retrieved 23 March 2012.
  65. de Carbonnel, Alissa (31 January 2012). "Russia blames Mars probe failure on space radiation". Reuters. Retrieved 27 February 2012.
  66. "Russia Places Phobos-Grunt Failure Blame". Archived from the original on 20 July 2012. Retrieved 1 July 2018.
  67. Clark, Stephen (6 February 2012). "Russia: Computer crash doomed Phobos-Grunt". Spaceflight Now. Retrieved 29 February 2012.
  68. "Programmers are to be blamed for the failure of Phobos mission". ITAR-TASS News Agency. 31 January 2012. Retrieved 29 February 2012.
  69. "Phobos-Grunt project in 2011". russianspaceweb.com. Retrieved 1 July 2018.
  70. Phobos-Grunt failure criticized Archived 10 September 2012 at the Wayback Machine
  71. Louis D. Friedman (6 February 2012). "Phobos-Grunt Failure Report Released". The Planetary Society. Retrieved 20 May 2012.
  72. Merryl Azriel (21 January 2011). "Grief and Concern over Russian Phobos-Grunt Failure". Space Safety Magazine. Retrieved 20 May 2012.
  73. Eric Hand (28 November 2011). "Medvedev: Punishment awaits those behind Russian Mars failure". Nature. Retrieved 20 May 2012.
  74. "Medvedev suggests prosecution for Russia space failure". Reuters. 26 November 2011.
  75. Olga, Zakutnyaya (2 February 2012). "Russia's Ambitious space projects: Phobos-Grunt-2?". Russian and India Report. Retrieved 1 April 2012.
  76. Lev, Zelenyi; Maxim, Martynov; Alexander, Zakharov; Oleg, Korablev; Alexey, Ivanov; George, Karabadzak (1 July 2018). "Phobos Sample Return: Next Approach". 40th COSPAR Scientific Assembly. 40: B0.4–10–14. Bibcode:2014cosp...40E3769Z.
  77. Russia to make another attempt to bring back Mars moon material 16 October 2013
  78. ""Phobos-Grunt-2" can be launched in 2020, says the head of IKI". RIA Novosti. 25 April 2012. Retrieved 29 April 2012.
  79. "Federal Space Agency accepted the offer to renew the RAS Project "Phobos-Grunt"" (in Russian). Interfax.ru. 10 April 2012. Retrieved 15 April 2012.
  80. Jonathan Amos (15 March 2012). "Europe still keen on Mars missions". BBC News. Retrieved 16 March 2012.
  81. "Federal Space Agency is going to repeat the project "Phobos-Grunt"". RBC. 19 April 2012. Archived from the original on 10 May 2013. Retrieved 20 April 2012.
  82. "Russia to focus on Moon, Mars exploration, repeat Phobos-Grunt mission". ITAR–TASS. 2 August 2014. Retrieved 3 August 2014.
  83. "Russia May Send Repeat Mission to Martian Moon Phobos in 2023". RIA Novosti. 3 October 2014. Retrieved 5 October 2014.
  84. ^ "ESA at MAKS 2015". Zhukovsky, Russia: ESA. Retrieved 22 December 2015.
  85. Kane, Van (9 June 2014). "A Checkup on Future Mars Missions". The Planetary Society. Retrieved 22 December 2015.
  86. ^ Fobos-Grunt 2: "Choosing the launch window" 8 October 2015 Accessed on 29 December 2015
  87. "Russia may launch mission to deliver soil from Mars moon after 2030". TASS. 2 September 2023. Retrieved 6 August 2024.
  88. Zak, Anatoly (8 October 2015). "Phobos-Grunt-2". RussianSpaceWeb. Retrieved 6 August 2024.
  89. Ilya Kramnik (18 April 2012). "Russia takes a two-pronged approach to space exploration". Russia & India Report. Retrieved 18 April 2012.
  90. Dwayne A. Day (28 November 2011). "Red Planet blues". The Space Review. Retrieved 18 April 2012.
  91. Korablev, O. "Russian programme for deep space exploration" (PDF). Space Research Institute (IKI). p. 14. Archived from the original (PDF) on 29 November 2011. Retrieved 3 August 2008.
  92. "Living Interplanetary Flight Experiment (LIFE)". The Planetary Society. Archived from the original on 20 January 2011.
  93. "Optico-electronic Instruments for the Phobos-Grunt Mission". Space Research Institute of the Russian Academy of Sciences. Retrieved 20 July 2009.
  94. ^ Phobos Soil – Spacecraft European Space Agency
  95. ^ Harvey, Brian (2007). "Resurgent – the new projects". The Rebirth of the Russian Space Program (1st ed.). Germany: Springer. ISBN 978-0-387-71354-0.
  96. "Optical Solar Sensor". Space Research Institute of the Russian Academy of Sciences. Archived from the original on 19 July 2011. Retrieved 20 July 2009.
  97. ^ "Russia resumes missions to outer space: what is after Phobos?" (in Russian).
  98. ^ "COSPAR Planetary Protection Policy". Archived from the original on 26 November 2010. Retrieved 3 November 2011.
  99. "Phobos Flyby Images: Proposed Landing Sites for the Forthcoming Phobos-Grunt Mission". Science Daily. 15 March 2010. Archived from the original on 28 December 2011. Retrieved 7 November 2011.
  100. ^ Zak. "Mission Possible".
  101. Simberg, Rand (10 November 2011). "Russia Races to Save Its Mars Mission Stuck in Earth Orbit". Popular Mechanics. Retrieved 11 June 2019.
  102. The mission scenario of the Phobos-Grunt project Anatoly Zak
  103. Russian spacecraft for Fobos-Grunt program to be controlled from Yevpatoria, Kyiv Post (25 June 2010)
  104. "Russia's Phobos Grunt to head for Mars on November 9". Itar Tass. 25 October 2011. Retrieved 27 October 2011.
  105. Fobos-Grunt sample return mission. Archived 12 November 2011 at the Wayback Machine(in Russian)
  106. DiGregorio, Barry E. (28 December 2010). "Don't send bugs to Mars". New Scientist. Retrieved 8 January 2011.
  107. McLean, R.; Welsh, A.; Casasanto, V. (2006). "Microbial survival in space shuttle crash". Icarus. 181 (1): 323–325. Bibcode:2006Icar..181..323M. doi:10.1016/j.icarus.2005.12.002. PMC 3144675. PMID 21804644.

Further reading

  • M. Ya. Marov, V. S. Avduevsky, E. L. Akim, T. M. Eneev, R. S. Kremnev, S. D. Kulikov, K. M. Pichkhadze, G. A. Popov, G. N. Rogovsky; Avduevsky; Akim; Eneev; Kremnev; Kulikov; Pichkhadze; Popov; Rogovsky (2004). "Phobos-Grunt: Russian sample return mission". Advances in Space Research. 33 (12): 2276–2280. Bibcode:2004AdSpR..33.2276M. doi:10.1016/S0273-1177(03)00515-5.{{cite journal}}: CS1 maint: multiple names: authors list (link)

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