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			{{Use British English\|date=April 2021}}
	#REDIRECT ]
			{{Use dmy dates\|date=April 2021}}
			{{Infobox spaceflight
			\| name = Eutelsat 8 West B
			\| names_list = Nilesat 104B
			\| image =
			\| image_caption =
			\| image_size = 300px

			\| mission_type = ]
			\| operator = ]
			\| COSPAR_ID = 2015-039B
			\| SATCAT = 40875
			\| website = https://www.eutelsat.com/en/home.html
			\| mission_duration = 15 years (planned)<br/>{{time interval\|20 August 2015\|show=ymd\|sep=,}} (elapsed)

			\| spacecraft = Eutelsat 8 West B
			\| spacecraft_type = ]
			\| spacecraft_bus = ]
			\| manufacturer = ]
			\| launch_mass = {{cvt\|5782\|kg}}
			\| dry_mass =
			\| dimensions =
			\| power =

			\| launch_date = 20 August 2015, 20:34:08 ]
			\| launch_rocket = ] (VA255)
			\| launch_site = ], ]
			\| launch_contractor = ]

			\| entered_service = October 2015
			\| disposal_type =
			\| deactivated =
			\| last_contact =

			\| orbit_reference = ]
			\| orbit_regime = ]
			\| orbit_longitude = 8° East
			\| apsis = gee

			\| trans_band = 50 ]:<br/>10 ]<br/>40 ]
			\| trans_frequency =
			\| trans_bandwidth =
			\| trans_capacity =
			\| trans_coverage = ], ], ]

			\| programme = ]
			\| previous_mission = ]
			\| next_mission = ]
			}}

			'''Eutelsat 8 West B''' is a ] ]. Operated by ], it provides ] (DTH) broadcasting services from ]. The satellite is part of Eutelsat's constellation at a ] of 13° East. Eutelsat announced the order of a of a new ] ] from ] in October 2012.

			== Satellite description ==
			Eutelsat 8 West B is a {{cvt\|5782\|kg}} satellite with a design life of 15 years. It is equipped with an ] ] which was used for initial ] manoeuvres and an ] engine for station keeping burns.<ref>{{cite web\|url=http://cs.astrium.eads.net/sp/spacecraft-propulsion/heritage/page-126.html\|title=Hot Bird 6 / 2002 – 038A\|work=Spacecraft Propulsion Heritage\|publisher=EADS Astrium\|access-date=4 October 2013}}</ref> The spacecraft has 10 ] and 40 ] ].<ref name="Gunter">{{cite web\|url=https://space.skyrocket.de/doc_sdat/eutelsat-8-west-b.htm\|title=Eutelsat 8 West B (Nilesat 104B)\|first=Gunter\|last=Krebs\|publisher=Gunter's Space Page\|date=5 December 2019\|access-date=16 April 2021}}</ref>

			== Launch ==
			Eutelsat 8 West B was launched on the ] launch vehiclen from ] at the ] in ]. Liftoff occurred at 20:34:08 ] on 20 August 2015,<ref>{{cite web\|url=http://planet4589.org/space/log/launchlog.txt\|title=Launch Log\|first=Jonathan\|last=McDowell\|publisher=Jonathan's Space Page\|date=14 March 2021\|access-date=16 April 2021}}</ref> with the launch vehicle successfully injecting its payload into ] (GTO). The launch was conducted by ].

			== Mission ==
			Following launch, the satellite '''Eutelsat 8 West B''' used its apogee motor to raise itself into geostationary orbit, positioning itself at a longitude of 13° East. Capacity leased by ] is marketed as '''Nilesat 104B'''.<ref name="Gunter"/>

			== References ==
			{{Portal\|Spaceflight}}
			{{Reflist\|30em}}

			== External links ==
			*
			*

			{{Eutelsat}}
			{{Orbital launches in 2015}}

			]
			]
			]
			]

Revision as of 05:45, 16 April 2021

Eutelsat 8 West B
Spacecraft properties
Names	Nilesat 104B

Mission type	Communications
Operator	Eutelsat
COSPAR ID	2015-039B
SATCAT no.	40875
Website	https://www.eutelsat.com/en/home.html
Mission duration	15 years (planned) 9 years, 4 months, 21 days (elapsed)


Spacecraft	Eutelsat 8 West B
Spacecraft type	Spacebus
Bus	Spacebus-4000C3
Manufacturer	Thales Alenia Space
Launch mass	5,782 kg (12,747 lb)


Start of mission
Launch date	20 August 2015, 20:34:08 UTC
Rocket	Ariane 5ECA (VA255)
Launch site	Centre Spatial Guyanais, ELA-3
Contractor	Arianespace
Entered service	October 2015


Orbital parameters
Reference system	Geocentric orbit
Regime	Geostationary orbit
Longitude	8° East


Transponders
Band	50 transponders: 10 C-band 40 Ku-band
Coverage area	South America, Africa, Middle East

Eutelsat constellation← Eutelsat 115 West B Eutelsat 9B →

Eutelsat 8 West B is a geostationary communications satellite. Operated by Eutelsat, it provides direct-to-home (DTH) broadcasting services from geostationary orbit. The satellite is part of Eutelsat's constellation at a longitude of 13° East. Eutelsat announced the order of a of a new Spacebus-4000C3 satellite bus from Thales Alenia Space in October 2012.

Satellite description

Eutelsat 8 West B is a 5,782 kg (12,747 lb) satellite with a design life of 15 years. It is equipped with an S400-12 apogee motor which was used for initial orbit-raising manoeuvres and an S10-18 engine for station keeping burns. The spacecraft has 10 C-band and 40 Ku-band transponders.

Launch

Eutelsat 8 West B was launched on the Ariane 5ECA launch vehiclen from Centre Spatial Guyanais at the Kourou in French Guiana. Liftoff occurred at 20:34:08 UTC on 20 August 2015, with the launch vehicle successfully injecting its payload into geosynchronous transfer orbit (GTO). The launch was conducted by Arianespace.

Mission

Following launch, the satellite Eutelsat 8 West B used its apogee motor to raise itself into geostationary orbit, positioning itself at a longitude of 13° East. Capacity leased by Nilesat is marketed as Nilesat 104B.

References

"Hot Bird 6 / 2002 – 038A". Spacecraft Propulsion Heritage. EADS Astrium. Retrieved 4 October 2013.
^ Krebs, Gunter (5 December 2019). "Eutelsat 8 West B (Nilesat 104B)". Gunter's Space Page. Retrieved 16 April 2021.
McDowell, Jonathan (14 March 2021). "Launch Log". Jonathan's Space Page. Retrieved 16 April 2021.

External links

Eutelsat satellites

Post-2012 designations

East	3B 7A 7B 9B 10A 16A 16C 21B 25B 31A 33B 33C 33E 36A 36B 36C 48A 48D 70B 70C 172A 172B
West	5WA 5WB 7WA 8WB 12WB 36WA 65WA 113WA 115WB 117WA 117WB
Hot Bird	13B 13C 13E 13F 13G
Other	KA-SAT SESAT-2 Telstar 12

Pre-2012 designations

Main brand

Eutelsat I	ECS-1 ECS-2 ECS-3 ECS-4 ECS-5
Eutelsat II	F-1 F-2 F-3 F-4 F-5
W series	W1 W2 W2A W2M W3 W3A W3B W3C W3D W4 W5 W5A W6 W6A W7 W48 W75

Hot Bird

Atlantic Bird

Eurobird

Other

v t e ← 2014 Orbital launches in 2015 2016 →
January	SpaceX CRS-5 (Flock-1d' × 2, AESP-14) MUOS-3 SMAP, ExoCube
February	IGS-Radar Spare Inmarsat 5-F2 Fajr DSCOVR Progress M-26M Kosmos 2503 / Bars-M No. 1
March	ABS-3A, Eutelsat 115 West B WADIS-2 MMS Ekspress AM7 USA-260 / GPS IIF -9 KOMPSat-3A IGS-Optical 5 Soyuz TMA-16M Galileo FOC-3, FOC-4 IRNSS-1D BeiDou I1-S Gonets-M 11, 12, 13, Kosmos 2504
April	SpaceX CRS-6 (Arkyd-3R, Flock-1e × 14) Thor 7, SICRAL-2 TürkmenÄlem 52°E / MonacoSAT Progress M-27M
May	Mexsat-1 USA-261 / X-37 OTV-4, LightSail-1, USS Langley, BRICSat-P, ParkinsonSat, GEARRS-2, AeroCube 8A, 8B, OptiCube 1, 2, 3 DirecTV-15, SKY México-1
June	Kosmos 2505 / Kobalt-M №10 Sentinel-2A Kosmos 2506 / Persona №3 Gaofen 8 SpaceX CRS-7† (Flock-1f × 8†)
July	Progress M-28M UK-DMC 3 × 3, CBNT-1, DeOrbitSail USA-262 / GPS IIF -10 Star One C4, MSG-4 Soyuz TMA-17M USA-263 / WGS-7 BeiDou M1-S, M2-S
August	HTV-5 / Kounotori 5 (Flock-2b × 14) Eutelsat 8 West B, Intelsat 34 Yaogan 27 GSAT-6 / INSAT-4E Inmarsat 5-F3
September	Soyuz TMA-18M MUOS-4 Galileo FOC-5, Galileo FOC-6 TJS-1 Gaofen 9 Ekspress AM8 Kosmos 2507 / Strela-3M 13, Kosmos 2508 / Strela-3M 14, Kosmos 2509 / Strela-3M 15 Pujiang-1 Astrosat, LAPAN-A2, Lemur-2 × 4 BeiDou I2-S NBN-Co 1A, ARSAT-2
October	Progress M-29M Mexsat-2 Jilin-1 Smart Verification Satellite, Jilin-1 Optical-A, Jilin-1 Video-01, Jilin-1 Video-02 USA-264 / NOSS Intruder × 2, AMSAT Fox-1 APStar-9 Türksat 4B USA-265 / GPS IIF -11
November	Chinasat 2C HiakaSat, EDSN × 8, PrintSat, Argus, STACEM, Supernova-Beta Yaogan 28 Arabsat 6B, GSAT-15 Kosmos 2510 / EKS-1 / Tundra-11L LaoSat-1 Telstar 12V Yaogan 29
December	LISA Pathfinder Kosmos 2511 / Kanopus-ST†, Kosmos 2512 / KYuA-1 Cygnus CRS OA-4 (Flock-2e × 12, MinXSS 1, Nodes × 2) ChinaSat 1C Elektro-L No.2 Kosmos 2513 / Garpun-12L Soyuz TMA-19M TeLEOS-1 DAMPE Galileo FOC-8, Galileo FOC-9 Progress MS-01 Orbcomm-OG2 × 11 Ekspress-AMU1 Gaofen 4
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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