Inmarsat-4 F3

Inmarsat-4 F3
Operator	Inmarsat
COSPAR ID	2008-039A
SATCAT no.	33278
Spacecraft properties
Bus	Eurostar E3000
Manufacturer	EADS Astrium
Launch mass	5,960 kilograms (13,140 lb)
Start of mission
Launch date	18 August 2008
Rocket	Proton-M/Briz-M
Launch site	Baikonur 200/39
Contractor	ILS
Entered service	7 January 2009
Orbital parameters
Reference system	Geocentric
Regime	Geostationary
Longitude	98° West

Inmarsat-4 F3 is a communications I-4 satellite operated by the British satellite operator Inmarsat. It was launched into a geosynchronous orbit at 22:43 GMT on 18 August 2008,^[1] by a Proton-M/Briz-M Enhanced carrier rocket. It is currently located at 97.65° West longitude, providing coverage of the Americas.^[2] It entered service on 7 January 2009.

Like the earlier Inmarsat-4 F1 and F2 satellites, Inmarsat-4 F3 was constructed by EADS Astrium, using a Eurostar E3000 bus. It has a mass of 5,960 kilograms, and is expected to operate for 13 years.^[3] It was originally slated for launch using an Atlas V 531, but was transferred to Proton due to a large backlog of Atlas launches.

In the United States, Inmarsat ground stations are licensed to operate at 1525-1559 MHz and 1626.5-1660.5 MHz. The 1544-1545 MHz and 1645.5-1646.5 MHz bands are reserved for safety and distress communications.^[2]

References[edit]

^ "ILS PROTON SUCCESSFULLY LAUNCHES INMARSAT-4 F3 SATELLITE". International Launch Services. 2008-08-19. Archived from the original on 2008-09-23. Retrieved 2009-02-15.
^ ^a ^b "Inmarsat List". US Federal Communications Commission. Archived from the original on March 23, 2014. Retrieved March 22, 2014.
^ Krebs, Gunter. "Inmarsat-4". Gunter's Space Page. Retrieved 2009-02-15.

External links[edit]

[ILS-1] "ILS PROTON SUCCESSFULLY LAUNCHES INMARSAT-4 F3 SATELLITE". International Launch Services. 2008-08-19. Archived from the original on 2008-09-23. Retrieved 2009-02-15.

[FCC-2] "Inmarsat List". US Federal Communications Commission. Archived from the original on March 23, 2014. Retrieved March 22, 2014.

[GSP-3] Krebs, Gunter. "Inmarsat-4". Gunter's Space Page. Retrieved 2009-02-15.

[1]

[2]

[3]

v t e ← 2007 Orbital launches in 2008 2009 →
January	Thuraya 3 TecSAR Ekspress AM-33
February	Progress M-63 STS-122 (Columbus) Thor 5 Kizuna
March	Jules Verne ATV STS-123 (Kibō ELM-PS, Dextre, Spacelab MD002) USA-200 AMC-14 USA-201 DirecTV-11 SAR-Lupe 4
April	Soyuz TMA-12 ICO G1 C/NOFS Vinasat-1, Star One C2 Tianlian I-01 GIOVE-B Cartosat-2A, Rubin-8, AAUSat-2, CanX-2, CanX-6, Compass-1, CUTE-1.7 + APD II, Delfi-C3, SEEDS-2 Amos-3
May	Progress M-64 Galaxy 18 Kosmos 2437, Kosmos 2438, Kosmos 2439, Yubileiny Fengyun 3A STS-124 (Kibō PM)
June	ChinaSat 9 Fermi Skynet 5C, Türksat 3A Orbcomm FM29, Orbcomm FM37, Orbcomm FM38, Orbcomm FM39, Orbcomm FM40, Orbcomm FM41 OSTM/Jason-2 Kosmos 2440
July	Badr-6, ProtoStar 1 EchoStar XI SAR-Lupe 5 Kosmos 2441
August	Trailblazer, NanoSail-D, PRESat, Explorers Superbird-C2, AMC-21 Omid Inmarsat-4 F3 Tachys, Mati, Choma, Choros, Trochia
September	Huan Jing 1A, Huan Jing 1B GeoEye-1 Progress M-65 Nimiq-4 Galaxy 19 Kosmos 2442, Kosmos 2243, Kosmos 2444 Shenzhou 7 (Banxing-1) Ratsat
October	THEOS Soyuz TMA-13 IBEX Chandrayaan-1 (MIP) Shijian 6E, Shijian 6F COSMO-3 Venesat-1
November	Chuang Xin 1B, Shiyan Weixing 3 Astra 1M Kosmos 2445 STS-126 (Leonardo MPLM, PSSC-1) Progress M-01M
December	Yaogan 4 Kosmos 2446 Yaogan 5 Hot Bird 9, Eutelsat W2M Fengyun 2E Kosmos 2447, Kosmos 2448, Kosmos 2449
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ). Cubesats are smaller. Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).