Inmarsat-4 F1
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| Operator | Inmarsat |
|---|---|
| COSPAR ID | 2005-009A |
| SATCAT no. | 28628 |
| Spacecraft properties | |
| Bus | Eurostar E3000 |
| Manufacturer | EADS Astrium |
| Launch mass | 5,959 kilograms (13,137 lb) |
| Start of mission | |
| Launch date | 11 March 2005 |
| Rocket | Atlas V |
| Launch site | Cape Canaveral Space Launch Complex 41 |
Inmarsat-4 F1 is a communications I-4 satellite operated by the British satellite operator Inmarsat. It was launched into a geosynchronous orbit at 21:42 GMT on 11 March 2005 from Space Launch Complex 41 at Cape Canaveral, Florida, onboard an Atlas V in the 431 configuration. It is currently located at 143.5 degrees East.[1]
Inmarsat-4 F1 was constructed by EADS Astrium, using a Eurostar E3000 bus. It has a mass of 5959 kg and is expected to operate for 13 years[2]
On 17 February 2018 Inmarsat-4 F1 experienced outage due to loss of attitude control.
On 17 April 2023 Inmarsat-4 F1 suffered a partial loss of power from one of its solar arrays, resulting in an "extended outage" which affected all services provided by the satellite. I-4 F1's payload was brought back online by April 18.[3]