SGDC ( port. Satélite Geoestácionário de Defesa e Comunicação Estratégicas ) is the Brazilian state geostationary communications satellite . It was ordered by , a joint venture between the Brazilian aircraft manufacturer Embraer and the telecommunications company , to provide secure communications and Internet access to the Armed Forces and government organizations in Brazil [1] [2] .
| SGDC | |
|---|---|
| Satélite Geoestácionário de Defesa e Comunicação Estratégicas | |
| Customer |  |
| Manufacturer |  Thales alenia space |
| Operator | |
| Tasks | communication satellite |
| Satellite | Of the earth |
| Launch pad | Kourou , ELA-3 |
| Launch vehicle | Arian-5 ECA |
| Launch | May 4, 2017, 21:50 UTC |
| Flight duration | 2 years, 3 months, 13 days |
| NSSDC ID | 2017-023A |
| SCN | 42692 |
| Specifications | |
| Platform | Spacebus-4000C4 |
| Weight | 5735 kg (at startup) |
| Power | 11 kW |
| The term of active existence | 15 years |
| Elements of the orbit | |
| Orbit type | Geostationary orbit |
| Standing point | 75 ° West |
| Target equipment | |
| Transponders | 50 × Ka-band 7 × X-band |
| Coverage area | Brazil |
Built on the basis of the Spacebus-4000С4 space platform by the French company Thales Alenia Space , the contract with which was signed in December 2013 [3] . The starting mass of the satellite is 5735 kg, power consumption - 11 kW . The expected life of the satellite is 15 years. The device has 50 Ka-band transponders with a total bandwidth of up to 80 Gb / s , as well as 7 X-band transponders for the needs of military structures [3] [2] .
It will be located at the 75 ° west longitude orbital position [2] .
The SGDC satellite was launched in tandem with the Korean satellite Koreasat 7 , using the Arian-5 ECA launch vehicle from the launch complex ELA-3 at the Kourou Cosmodrome in French Guiana , and the contract with the Arianespace operator was signed in December 2013 [4] .
Initially, the launch was scheduled for March 21, 2017, but was delayed due to mass strikes in French Guiana. The launch was carried out on May 4, 2017 at 21:50 UTC [5] [6] .
Notes
- ↑ Satélite geoestacionário vai garantir a segurança das comunicações brasileiras (port.) (Unavailable link) . Telebras (November 28, 2013). Archived December 20, 2016.
- ↑ 1 2 3 Brazil Orders Civil-Military Telecommunications Satellite . Space News (November 29, 2013).
- ↑ 1 2 Thales Alenia Space wins contract for Brazil's SGDC government communications satellite system (inaccessible link) . Thales Alenia Space (December 12, 2013). Date of treatment January 23, 2017. Archived February 2, 2017.
- ↑ Arianespace to launch Brazilian government satellite, SGDC . Arianespace (12 December 2013).
- ↑ Launches resume in French Guiana with dual-payload Ariane 5 flight . Spaceflight Now (May 4, 2017).
- ↑ Twilight Ariane 5 Launch with Dual-Satellite Payload marks Resumption of Missions from French Guiana . Spaceflight101 (May 4, 2017).