Sirius XM Radio
|Mission duration||15 years|
|Launch mass||3,800 kilograms (8,400 lb)|
|Start of mission|
|Launch date||30 June 2000|
|Launch site||Baikonur 81/24|
Sirius FM-1, also known as Radiosat 1, is an American communications satellite which is operated by Sirius XM Radio, previously Sirius Satellite Radio. It was constructed by Space Systems Loral and is based on the LS-1300 satellite bus. Launch occurred on 30 June 2000, at 22:08 GMT. The launch was contracted by International Launch Services, and used a Proton-K/DM3 carrier rocket flying from Site 81/24 at the Baikonur Cosmodrome.
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