XM 5

Sirius XM-5

US

Spacecraft nº:

US spacecraft nº:

Designation	37185 / 10053A
Launch date	14 Oct 2010 - 18:53 UT
Launch site	Baik, LC-81/24
Launch vehicle	Proton-M / Briz-M
Mission	Commercial: Communication (Radio)
Geostationary orbit on Oct 26.17:
Perigee / Apogee	35777 x 35793 km
Eccentricity	1,90E-04
Inclination	0.03 deg
Period	1436.03 min

Prime contractor	Space Systems/Loral
Platform	L-1300
Operator	Sirius XM radio
Mass at launch	5983 kg
Dry Mass	kg
Basic shape	Box + 2 panels
Dimension (m)
Equipment
Solar array
Stabilization
Propulsion
DC power	18000 W
Design lifetime	> million years, active: 15 yrs - still active

Sirius Satellite Radio is a satellite radio (SDARS) service operating in the United States and Canada, owned by Sirius XM Radio.

Date	Position	Remarks
Nov 2010	85.20° W

Sirius XM-5 before launch

The satellite will be an orbital spare for the XM 3 and XM 4 satellites currently transmitting operational radio signals. Sirius XM 5 will join a fleet of spacecraft already beaming radio signals to receivers in cars, trucks, boats, aircraft, homes and mobile devices of more than 19.8 million subscribers. Two 29.5-foot-diameter (9-m-diameter) unfurlable mesh antennas will broadcast Sirius XM Radio's 135 audio channels. The antennas will be connected to an S-band downlink and X-band uplink communications payload. The satellite is designed to last for at least 15 years in space. Based on Loral's 1300 spacecraft bus, Sirius XM 5 will produce nearly 20 kilowatts of power at the end of its mission.

International Launch Services put another digital radio satellite in orbit for Sirius XM on Oct 14, 2010 aboard a Proton-M/Briz-M.
There are now four satellites in orbit from the original Sirius system (Sirius 1-3 in inclined orbit and Sirius 5 in geostationary) and five in the XM system (former XM Radio 1 to 4, now presumably to be known as Sirius XM 1 to 4).

Ref.: #7(JR633), #78a, #206, #226, #228 - update: 12.12.13