Inmarsat-3 F4
Mission type | Communications |
---|---|
Operator | Inmarsat |
COSPAR ID | 1997-027A |
SATCAT no. | 24819 |
Mission duration | 13 years (planned) 19 years (achieved) |
Spacecraft properties | |
Bus | AS-4000 |
Manufacturer | Lockheed-Martin Astro Space |
Launch mass | 2,068 kg (4,559 lb) |
Start of mission | |
Launch date | 3 June 1997, 23:20:06 UTC |
Rocket | Ariane 44L (V97) |
Launch site | Centre Spatial Guyanais, ELA-2 |
Contractor | Arianespace |
End of mission | |
Disposal | Graveyard orbit |
Deactivated | 2016 |
Orbital parameters | |
Reference system | Geocentric orbit |
Regime | Geostationary orbit |
Longitude | 54° West |
Transponders | |
Coverage area | Atlantic Ocean |
Inmarsat-3 F4 is a communications satellite operated by the British satellite operator Inmarsat. It was launched into a geosynchronous orbit on 4 June 1997. It was located at 54° West longitude whilst in service, providing coverage of the Americas as Atlantic Ocean Region-West (AOR-W). It was replaced by Inmarsat-3 F5 at 54° West in February 2016, and the now retired Inmarsat-3 F4 was moved to parking at 144° West.[1][2]
Inmarsat-3 F4 was constructed by Lockheed-Martin, using an AS-4000 satellite bus. It has a mass of 2,068 kg (4,559 lb), and is expected to operate for 13 years.[3]
In the United States, Inmarsat ground stations are licensed to operate at 1525-1559 MHz and 1626.5-1660.5 MHz via a mechanism called the ISAT List. The 1544-1545 MHz and 1645.5-1646.5 MHz bands are reserved for safety and distress communications.[4]
See also
- 1997 in spaceflight
References
- ^ "PETITION FOR DECLARATORY RULING". Federal Communications Commission. Retrieved 24 March 2018. This article incorporates text from this source, which is in the public domain.
- ^ "REQUEST FOR SPECIAL TEMPORARY AUTHORITY". Federal Communications Commission. Retrieved 24 March 2018. This article incorporates text from this source, which is in the public domain.
- ^ Krebs, Gunter (11 December 2017). "Inmarsat-3 F1, 2, 3, 4, 5". Gunter's Space Page. Retrieved 10 October 2021.
- ^ "ISAT List". Federal Communications Commission. Retrieved 24 March 2018. This article incorporates text from this source, which is in the public domain.
External links
- Our Satellites - Inmarsat
- http://www.boeing.com/news/releases/2005/q4/nr_051108s.html
- http://www.as.northropgrumman.com/products/aa_inmarsat/index.html Archived 6 July 2012 at the Wayback Machine
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