Nimiq-4 is a Canadian geosynchronous communications satellite.[1] It was launched aboard a Proton-M / Briz-M launch vehicle at 21:48:00 UTC on 19 September 2008. It was positioned at 82.0° West longitude, and operated by Telesat Canada.[2]

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Nimiq-4

Mission type	High-definition television (HDTV)
Operator	Telesat Canada
COSPAR ID	2008-044A
SATCAT no.	33373
Mission duration	15 years (planned)
Spacecraft properties
Spacecraft type	Nimiq
Bus	Eurostar-3000S
Manufacturer	EADS Astrium
Launch mass	4,850 kg (10,690 lb)
Power	12 kW
Start of mission
Launch date	19 September 2008, 21:48:00 UTC
Rocket	Proton-M / Briz-M
Launch site	Baikonur, Site 200/39
Contractor	International Launch Services (ILS)
Orbital parameters
Reference system	Geocentric orbit
Regime	Geostationary orbit
Longitude	82.0° West
Transponders
Band	32 Ku-band, 8 Ka-band
Coverage area	North America
Nimiq program ← Nimiq-3 Nimiq-5 →

Spacecraft

The satellite was constructed by EADS Astrium, using a Eurostar-3000S bus.[3] It is powered by two solar panels, with a span of 39 m (128 ft), producing 12 kW of power. The launch mass of the satellite is 4,850 kg (10,690 lb), with fuel. It carries 40 transponders, 32 of which operate in the Ku-band, and 8 which operate in the Ka-band. It provides digital HDTV to Canada and United States.[2]

See also

• Nimiq

References

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