Inmarsat-4 F1
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. By an Atlas 5 in the 431 configuration. It is currently located at 143.5 degrees East.
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
On 17 February 2018 Inmarsat-4 F1 experienced outage due to loss of attitude control.