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Inmarsat-4 F3

Field	Value
name	Inmarsat-4 F3
operator	Inmarsat
spacecraft_bus	Eurostar E3000
manufacturer	EADS Astrium
launch_mass	5960 kg
launch_date
launch_rocket	Proton-M/Briz-M
launch_site	Baikonur 200/39
launch_contractor	ILS
entered_service	7 January 2009
deactivated
orbit_reference	Geocentric
orbit_regime	Geostationary
orbit_longitude	98° West
apsis	gee

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, by a Proton-M/Briz-M Enhanced carrier rocket. It is currently located at 97.65° West longitude, providing coverage of the Americas. 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. 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.

References

(2008-08-19). "ILS PROTON SUCCESSFULLY LAUNCHES INMARSAT-4 F3 SATELLITE". International Launch Services.
"Inmarsat List".
Krebs, Gunter. "Inmarsat-4". Gunter's Space Page.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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