SGDC-1
| Mission type | Earth orbiter |
|---|---|
| Operator | Telebrás and Viasat |
| COSPAR ID | 2017-023B[1] |
| SATCAT no. | 42692[2] |
| Website | Portal SGDC Telebras |
| Mission duration | 18 years (planned) |
| Spacecraft properties | |
| Bus | 4000C4 |
| Manufacturer | Thales Alenia Space |
| Launch mass | 5,735 kg (12,644 lb) |
| Dimensions | 7.10 m × 2.20 m × 2.0 m (23.3 ft × 7.2 ft × 6.6 ft) |
| Power | 11 kW |
| Start of mission | |
| Launch date | May 4, 2017, 21:52 UTC[3][4] |
| Rocket | Ariane 5 VA236 |
| Launch site | Kourou ELA-3 |
| Contractor | Arianespace |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Longitude | 73.7° W[2] |
| Semi-major axis | 42,164.0 km (26,199.5 mi)[2] |
| Eccentricity | 0.00016[2] |
| Perigee | 35,784.6 km (22,235.5 mi)[2] |
| Apogee | 35,802.6 km (22,246.7 mi)[2] |
| Inclination | 0.0229°[2] |
| Period | 1,436.1 minutes[2] |
| RAAN | 66.4545°[2] |
| Argument of perigee | 43.2613°[2] |
| Mean anomaly | 250.3095°[2] |
| Mean motion | 1.00272241[2] |
| Epoch | July 8, 2018[2] |
| Revolution no. | 436 |
| Transponders | |
| Band |
50 Ka band 7 IEEE X-band |
| Coverage area | Brazil, South Atlantic Ocean |
The Geostationary Defense and Strategic Communications Satellite or SGDC (in Portuguese: Satélite Geoestacionário de Defesa e Comunicações Estratégicas) is a Brazilian geostationary communication satellite that was built by Thales Alenia Space in France, it was placed in the orbital position of 75 degrees west longitude and will be operated by Telebrás. Telebrás selected Viasat as a partner to help build the associated ground system.[5] The satellite was based on the Spacebus-4000 platform and its life expectancy will be 18 years.[6]
The satellite was successfully launched into space on May 4, 2017, at 21:52 UTC, by means of an Ariane 5 vehicle from the French company Arianespace, launched from Guiana Space Centre, Kourou, French Guiana, together with the Koreasat 7.[7] It had a launch mass of 12,800 pounds (5,800 kg). The SGDC will be equipped with 50 Ka band transponders and 5 X band transponders to provide broadband internet and communications to the Brazilian government and the Brazilian Armed Forces.[8]
See also
References
- ↑ NASA, Goddard Space Flight Center (14 May 2017). "SGDC". NSSDC Master Catalog. Retrieved 14 May 2017.
- 1 2 3 4 5 6 7 8 9 10 11 12 13 n2yo.com (July 8, 2018). "SGDC". Retrieved July 8, 2018.
- ↑ Clark, Stephen (10 January 2017). "Launch schedule". Spaceflight Now. Retrieved 11 January 2017.
- ↑ Gunter, Krebs. "SGDC 1". Retrieved May 4, 2017.
- ↑ Viasat. "Telebras, Viasat Enter into Strategic Agreement to Connect the Unconnected in Brazil". Retrieved March 6, 2018.
- ↑ Gunter, Kreb's. "SGDC 1". Gunter's Space Page. Retrieved December 7, 2016.
- ↑ "Brasil lança satélite que permitirá acesso à banda larga em áreas remotas". G1, Brasília (in Portuguese). May 4, 2017. Retrieved May 4, 2017.
- ↑ Satélite geoestacionário vai garantir a segurança das comunicações brasileiras. Archived 2016-12-20 at the Wayback Machine. Telebrás (in Portuguese). Retrieved 2016-12-07.