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{{Short description|American navigation satellite used for GPS}}
{{Use American English|date=November 2020}}
{{Use dmy dates|date=November 2020}}
{{Infobox spaceflight {{Infobox spaceflight
| name = USA-35 | name = USA-35
| names_list = Navstar 2-01<br/>GPS II-1<br/>GPS SVN-14
| image = Navstar-2.jpg
| image_caption = A Block II GPS satellite | image =
| insignia = | image_caption =
| image_size = 290px


| mission_type = ]
<!--Basic details-->
| mission_type = ] | operator = ]
| operator = ] | COSPAR_ID = 1989-013A
| COSPAR_ID = 1989-013A | SATCAT = 19802
| mission_duration = 7.5 years (planned)<br/>11 years (achieved)
| SATCAT = 19802
| mission_duration = 7.5 years (planned)<ref name="GSP"/>


| spacecraft = ]
<!--Spacecraft properties-->
| spacecraft_type = ]
| spacecraft =
| spacecraft_type = ]<ref name="GSP"/> | manufacturer = ]
| manufacturer = ]<ref name="GSP"/> | launch_mass = {{cvt|840|kg}} <ref name="NSSDC"/>
| launch_mass = {{convert|840|kg}}<ref name="NSSDC"/> | dimensions = 5.3 m (17 ft) of long
| dimensions = <!--body dimensions and solar array span--> | power = 710 watts
| power = <!--end-of-life power, in watts-->


| launch_date = 14 February 1989, 18:30 ]
<!--Launch details-->
| launch_rocket = ]<br/>(Delta D184) <ref name="LL"/>
| launch_date = {{start-date|14 February 1989, 18:30|timezone=yes}}&nbsp;UTC
| launch_site = ], ]
| launch_rocket = {{nowrap|],<ref name="LL"/>}} D184<ref name="LL"/>
| launch_contractor = ]
| launch_site = ] ]<ref name="LL"/>
| entered_service = <!--date on which the spacecraft entered service, if it did not do so immediately after launch-->


| entered_service = 16 March 1989
<!--end of mission-->
| last_contact = 26 March 2000
| disposal_type = <!--Whether the spacecraft was deorbited, decommissioned, placed in a graveyard orbit, etc-->
| deactivated = {{end-date|26 March 2000}} | deactivated = 14 April 2000


| orbit_reference = ]<ref name="Trajectory">{{cite web|url=https://nssdc.gsfc.nasa.gov/nmc/spacecraft/displayTrajectory.action?id=1989-013A|title=Trajectory: Navstar 2-01 1989-013A |publisher=NASA|date=14 May 2020|access-date=20 November 2020}} {{PD-notice}}</ref>
<!--orbit parameters-->
| orbit_regime = ]<br/><small>(])</small>
| orbit_epoch =
| orbit_slot = E1 (slot 1 plane E)
| orbit_reference = ]
| orbit_periapsis = {{cvt|19858|km}}
| orbit_regime = ]<br/><small>(])</small>
| orbit_periapsis = {{convert|19858|km}}<ref name="satcat"/> | orbit_apoapsis = {{cvt|20270|km}}
| orbit_inclination = 55.1°
| orbit_apoapsis = {{convert|20270|km}}<ref name="satcat"/>
| orbit_period = 713.2 minutes
| orbit_inclination = 55.1&nbsp;degrees<ref name="satcat"/>
| orbit_period = 713.2&nbsp;minutes<ref name="satcat"/> | apsis = gee

| apsis = gee
| programme = ]
| previous_mission = ] (Navstar 11)
| next_mission = ] (GPS II-2)
}} }}
'''USA-35''', also known as '''GPS II-1''' and '''GPS SVN-14''', was an ] ] which formed part of the ]. It was the first of nine ] GPS satellites to be launched, which were the first operational GPS satellites to be launched.


'''USA-35''', also known as '''Navstar 2-01''', '''GPS II-1''' and '''GPS SVN-14''', was an American ] which formed part of the ]. It was the first of nine ] GPS satellites to be launched, which were the first operational GPS satellites to be launched.
USA-35 was launched at 18:30 UTC on 14 February 1989, atop a ] carrier rocket, flight number D184, flying in the 6925 configuration.<ref name="LL">{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|publisher=Jonathan's Space Page|first=Jonathan|last=McDowell|accessdate=10 July 2012}}</ref> This was the maiden flight of the Delta II. The launch took place from ] at the ],<ref name="lvdb">{{cite web|url=http://planet4589.org/space/lvdb/list2.html|title=Launch List|publisher=Jonathan's Space Page|work=Launch Vehicle Database|first=Jonathan|last=McDowell|accessdate=10 July 2012}}</ref> and placed USA-35 into a transfer orbit. The satellite raised itself into ] using a ] ].<ref name="GSP">{{cite web|url=http://space.skyrocket.de/doc_sdat/navstar-2.htm|title=GPS-2 (Navstar-2)|first=Gunter|last=Krebs|work=Gunter's Space Page|accessdate=10 July 2012}}</ref>


== Background ==
On 16 March 1989, USA-35 was in an orbit with a ] of {{convert|19858|km}}, an ] of {{convert|20270|km}}, a ] of 713.2 minutes, and 55.1 degrees of ] to the equator.<ref name="satcat">{{cite web|url=http://planet4589.org/space/log/satcat.txt|title=Satellite Catalog|publisher=Jonathan's Space Page|first=Jonathan|last=McDowell|accessdate=10 July 2012}}</ref> The satellite had a mass of {{convert|840|kg}}, and generated 710 watts of power.<ref name="NSSDC">{{cite web|url=http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1989-013A|title=Navstar 2-01|publisher=US National Space Science Data Center|accessdate=10 July 2012}}</ref> It had a design life of 7.5 years,<ref name="GSP"/> however it operated until 26 March 2000, when its ]s failed. It was decommissioned on 14 April 2000, having been replaced by ].<ref>{{cite web|url=http://www.spaceandtech.com/spacedata/logs/1989/1989-013a_gps-2-1_sumpub.shtml|title=NAVSTAR GPS 2-1 - Summary|publisher=Space and Tech|accessdate=10 July 2012}}</ref>
It was one of the 21-satellite Global Positioning System (GPS) Block II series. When complete, the constellation will provide precise position data (accurate to within 16 m) to military and civilian users worldwide. Navstar signals can be received on devices as small as a telephone. The new generation Delta is 4.2 m taller and 13% more powerful than its predecessor. It can boost 3,982&nbsp;kg into ], 1,447&nbsp;kg into geotransfer orbit. The GPS II satellites, built by ] for Air Force Space Systems Division, each have a 7.5-year design life. The Air Force intends to launch a GPS II every 2 to 3 months until the constellation of 21 operational satellites and 3 spares is aloft.<ref name="NSSDC"/>


==References== == Launch ==
USA-35 was launched at 18:30 UTC on 14 February 1989, atop a ] launch vehicle, flight number D184, flying in the 6925-9.5 configuration.<ref name="LL">{{cite web |url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|publisher=Jonathan's Space Report|first=Jonathan|last=McDowell|access-date=10 July 2012}}</ref> This was the maiden flight of the Delta II. The launch took place from ] (LC-17A) at the ] (CCAFS),<ref name="lvdb">{{cite web|url=http://planet4589.org/space/lvdb/list2.html|title=Launch List|publisher=Jonathan's Space Report|work=Launch Vehicle Database|first=Jonathan|last=McDowell|access-date=10 July 2012|archive-date=15 August 2020|archive-url=https://web.archive.org/web/20200815040340/http://planet4589.org/space/lvdb/list2.html|url-status=dead}}</ref> and placed USA-35 into a transfer orbit. The satellite raised itself into ] using a ] ].<ref name="GSP">{{cite web |url=http://space.skyrocket.de/doc_sdat/navstar-2.htm|title=GPS-II (Navstar 12)|first=Gunter|last=Krebs|publisher=Gunter's Space Page|access-date=10 July 2012}}</ref>
{{reflist}}


== Mission ==
{{GPS satellites}}
On 16 March 1989, USA-35 was in an orbit with a ] of {{cvt|19858|km}}, an ] of {{cvt|20270|km}}, a ] of 713.2 minutes, and 55.1° of ] to the ].<ref name="satcat">{{cite web|url=http://planet4589.org/space/log/satcat.txt|title=Satellite Catalog|publisher=Jonathan's Space Report|first=Jonathan|last=McDowell|access-date=10 July 2012}}</ref> The satellite had a mass of {{cvt|840|kg}}, and generated 710 watts of power.<ref name="NSSDC">{{cite web|url=https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1989-013A |title=Display: Navstar 2-01 1989-013A|publisher=NASA|date=14 May 2020|access-date=20 November 2020}} {{PD-notice}}</ref> It had a design life of 7.5 years;<ref name="GSP"/> however, it operated until 26 March 2000, when its ]s failed. It was decommissioned on 14 April 2000, having been replaced by ].<ref>{{cite web|url=http://www.spaceandtech.com/spacedata/logs/1989/1989-013a_gps-2-1_sumpub.shtml|title=NAVSTAR GPS II-1 - Summary|publisher=Space and Tech|access-date=10 July 2012|url-status=usurped |archiveurl=https://web.archive.org/web/20111212055828/http://www.spaceandtech.com/spacedata/logs/1989/1989-013a_gps-2-1_sumpub.shtml|archive-date=12 December 2011}}</ref>


== References ==
{{Portal|Spaceflight}}
{{Reflist|2}}

{{GPS satellites}}
{{Orbital launches in 1989}} {{Orbital launches in 1989}}


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] ]
] ]


{{US-spacecraft-stub}}

Latest revision as of 20:37, 21 December 2024

American navigation satellite used for GPS

USA-35
NamesNavstar 2-01
GPS II-1
GPS SVN-14
Mission typeNavigation
OperatorU.S. Air Force
COSPAR ID1989-013A Edit this at Wikidata
SATCAT no.19802
Mission duration7.5 years (planned)
11 years (achieved)
Spacecraft properties
SpacecraftGPS II
Spacecraft typeGPS Block II
ManufacturerRockwell International
Launch mass840 kg (1,850 lb)
Dimensions5.3 m (17 ft) of long
Power710 watts
Start of mission
Launch date14 February 1989, 18:30 UTC
RocketDelta II 6925-9.5
(Delta D184)
Launch siteCape Canaveral, LC-17A
ContractorMcDonnell Douglas
Entered service16 March 1989
End of mission
Deactivated14 April 2000
Last contact26 March 2000
Orbital parameters
Reference systemGeocentric orbit
RegimeMedium Earth orbit
(Semi-synchronous)
SlotE1 (slot 1 plane E)
Perigee altitude19,858 km (12,339 mi)
Apogee altitude20,270 km (12,600 mi)
Inclination55.1°
Period713.2 minutes
Global Positioning System← USA-10 (Navstar 11)USA-38 (GPS II-2) →

USA-35, also known as Navstar 2-01, GPS II-1 and GPS SVN-14, was an American navigation satellite which formed part of the Global Positioning System. It was the first of nine Block II GPS satellites to be launched, which were the first operational GPS satellites to be launched.

Background

It was one of the 21-satellite Global Positioning System (GPS) Block II series. When complete, the constellation will provide precise position data (accurate to within 16 m) to military and civilian users worldwide. Navstar signals can be received on devices as small as a telephone. The new generation Delta is 4.2 m taller and 13% more powerful than its predecessor. It can boost 3,982 kg into low Earth orbit, 1,447 kg into geotransfer orbit. The GPS II satellites, built by Rockwell International for Air Force Space Systems Division, each have a 7.5-year design life. The Air Force intends to launch a GPS II every 2 to 3 months until the constellation of 21 operational satellites and 3 spares is aloft.

Launch

USA-35 was launched at 18:30 UTC on 14 February 1989, atop a Delta II launch vehicle, flight number D184, flying in the 6925-9.5 configuration. This was the maiden flight of the Delta II. The launch took place from Launch Complex 17A (LC-17A) at the Cape Canaveral Air Force Station (CCAFS), and placed USA-35 into a transfer orbit. The satellite raised itself into medium Earth orbit using a Star-37XFP apogee motor.

Mission

On 16 March 1989, USA-35 was in an orbit with a perigee of 19,858 km (12,339 mi), an apogee of 20,270 km (12,600 mi), a period of 713.2 minutes, and 55.1° of inclination to the equator. The satellite had a mass of 840 kg (1,850 lb), and generated 710 watts of power. It had a design life of 7.5 years; however, it operated until 26 March 2000, when its reaction wheels failed. It was decommissioned on 14 April 2000, having been replaced by USA-150.

References

  1. ^ "Display: Navstar 2-01 1989-013A". NASA. 14 May 2020. Retrieved 20 November 2020. Public Domain This article incorporates text from this source, which is in the public domain.
  2. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Report. Retrieved 10 July 2012.
  3. "Trajectory: Navstar 2-01 1989-013A". NASA. 14 May 2020. Retrieved 20 November 2020. Public Domain This article incorporates text from this source, which is in the public domain.
  4. McDowell, Jonathan. "Launch List". Launch Vehicle Database. Jonathan's Space Report. Archived from the original on 15 August 2020. Retrieved 10 July 2012.
  5. ^ Krebs, Gunter. "GPS-II (Navstar 12)". Gunter's Space Page. Retrieved 10 July 2012.
  6. McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Report. Retrieved 10 July 2012.
  7. "NAVSTAR GPS II-1 - Summary". Space and Tech. Archived from the original on 12 December 2011. Retrieved 10 July 2012.
NAVSTAR Global Positioning System satellites
List of GPS satellites
Block I
Block II
Block IIA
Block IIR
Block IIRM
Block IIF
Block III
Block IIIF
Italics indicate future missions. Signsindicate launch failures.
← 1988Orbital launches in 19891990 →
January
February
March
April
May
June
July
August
September
October
November
December
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ).
Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).
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