Brasilsat-A2
| Mission type | Telecommunications |
|---|---|
| Operator |
Embratel (1986-2000) Star One (2000-2004) |
| COSPAR ID | 1986-026B |
| SATCAT no. | 16650 |
| Mission duration | 18 years |
| Spacecraft properties | |
| Bus | HS-376 |
| Manufacturer | Spar Aerospace / Hughes |
| Launch mass | 1,194.8 kilograms (2,634 lb) |
| Start of mission | |
| Launch date | March 28, 1986 at 23:30 UTC |
| Rocket | Ariane 3 |
| Launch site | Kourou ELA-2 |
| Contractor | Arianespace |
| End of mission | |
| Deactivated | February 2004 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Longitude | (first position): 70° W (current position): 153.6° W |
| Semi-major axis | 42,342.0 kilometres (26,310.1 mi) |
| Perigee | 35,947.7 kilometres (22,336.9 mi) |
| Apogee | 35,995.7 kilometres (22,366.7 mi) |
| Inclination | 14.8 degrees |
| Period | 1,445.2 minutes |
| Epoch | 20 April 2017 |
| Transponders | |
| Band | 24 IEEE C-band |
| Coverage area | Brazil, South America |
Brasilsat A2 was a Brazilian geostationary communication satellite belonging to the Brasilsat family. It was built by Spar Aerospace in partnership with Hughes. For most of its useful life it was located in the orbital position of 70 degrees west longitude and was operated by Star One, a subsidiary company of Embratel. The satellite was based on the platform HS-376 and its life expectancy was 8 years. The same was out of commission in February 2004 and was transferred to the graveyard orbit.
The satellite had the shape of a cylinder, where on its top was a directional antenna that opened after the launching of the satellite, had the rotation stabilized of 50 to 55 rpm, its movers used like propellant 136 kilograms of hydrazine and was fed by solar cells that supplied 982 watts at the beginning of its operation phase, using two NiCd batteries as power reserves. It carried 24 C-band transmitters with 6 spare transmitters. They provided an Effective Isotropically Radiated Power (EIRP) effective incident radiation power> 34 dBW for most of the Brazilian territory.
In the 1980s, Brazil needed its own satellites to exempt foreigners. As a result of this effort, the Brazilian company Embratel contracted in August 1982 the Canadian Spar Aerospace, Ltd., in partnership with American Hughes, to build its series of "Brasilsat A" satellites, the series consisted of two satellites, the Brasilsat-A1 and the Brasilsat-A2. Built by Spar Aerospace, which received US$ 125 million to build under license from Hughes, the two Brazilian satellites model HS-376.
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