Communications satellite
This article is about the 1990s communications satellite. For the 1960s communications satellite, see Echo 2 (satellite) .
EchoStar II Mission type Communications Operator EchoStar COSPAR ID 1996-055A SATCAT no. 24313 Mission duration 12 years
Spacecraft properties Bus AS-7000 Manufacturer Lockheed Martin Launch mass 2,885 kg (6,360 lb) Dry mass 2,000 kg (4,400 lb) Power 7 kW
Start of mission Launch date September 11, 1996, 00:59 (1996-09-11UTC00:59Z) UTC Rocket Ariane-4 2P H10-3Launch site Kourou ELA-2
End of mission Deactivated July 14, 2008 (July 14, 2008)
Orbital parameters Reference system Geocentric Regime Geostationary Longitude 80° West (current position) Semi-major axis 42,146.0 km (26,188.3 mi) Perigee altitude 35,764.4 km (22,223.0 mi) Apogee altitude 35,787.2 km (22,237.1 mi) Inclination 7.1 degrees Period 1,435.2 minutes Epoch November 28, 2017
Transponders Band 16 Ku band Frequency Uplink : 17.3 - 17.8 GHz Downlink : 12.2 - 12.7 GHzBandwidth 24 MHz Coverage area Contiguous United States EIRP 53 dBW
EchoStar II is a communications satellite operated by EchoStar . Launched in 1996 it was operated in geostationary orbit at a longitude of 148 degrees west for 12 or 15 years.
Satellite
The launch of EchoStar I made use of an Ariane 4 rocket flying from Guiana Space Centre in Kourou , French Guiana . The launch took place at 00:59 UTC on September 11, 1996, with the spacecraft entering a geosynchronous transfer orbit . The spacecraft carried 16 Ku band transponders to enable direct broadcast communications and television channels through 0.5 metres (1 ft 8 in) dishes on the ground in the Contiguous United States .
From September 1996 to November 2001, it was at position 118.8° W , while from December 2001 until July 2008, it was at position 148° W. The satellite ended its activities on July 14, 2008.
Specifications
See also
References
^ N2yo. "ECHOSTAR 2" . Retrieved November 28, 2017. {{cite web }}: CS1 maint: numeric names: authors list (link )
NASA, Goddard Space Fight Center. "Echostar 2" . Retrieved November 28, 2017.
The Satellite Encyclopedia. "EchoStar 2" . Retrieved November 28, 2017.
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Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ).Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).
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