EchoStar III
Communications satellite / From Wikipedia, the free encyclopedia
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EchoStar III is a communications satellite operated by EchoStar. Launched in 1997 it was operated in geostationary orbit at a longitude of 61.5 degrees west for 12 years.
Quick Facts Mission type, Operator ...
Mission type | Communications |
---|---|
Operator | EchoStar |
COSPAR ID | 1997-059A |
SATCAT no. | 25004 |
Mission duration | 12 years |
Spacecraft properties | |
Bus | A2100AX |
Manufacturer | Lockheed Martin |
Launch mass | 3,674 kilograms (8,100 lb) |
Dry mass | 1,700 kilograms (3,700 lb) |
Start of mission | |
Launch date | October 5, 1997, 21:01 (1997-10-05UTC21:01Z) UTC |
Rocket | Atlas IIAS |
Launch site | Cape Canaveral LC-36B |
Contractor | NASA |
Orbital parameters | |
Reference system | Geocentric |
Regime | Geostationary |
Longitude | 61.5° west |
Semi-major axis | 42,164.0 kilometers (26,199.5 mi) |
Perigee altitude | 35,787.6 kilometers (22,237.4 mi) |
Apogee altitude | 35,798.8 kilometers (22,244.3 mi) |
Inclination | 2.1 degrees |
Period | 1,436.1 minutes |
Epoch | May 14, 2017 |
Transponders | |
Band | 32 Ku band |
Coverage area | Contiguous United States |
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