SGDC 1

Launch data: Designation  42692 / 17023B Launch date  04 May 2017 - 21:50 UT Launch site  Ko, ELA-3 Launch vehicle  Ariane-5ECA (VA236) Mission  Com: Communication Geostationary orbit: Perigee / Apogee  35775 x 35789 km Eccentricity  2,73E-04 Inclination   0.0° Period  1436.1 min

Spacecraft data: Prime manufacturer  Thales Alenia Space Platform  HTS Spacebus 4000-C3 Operator  Telebras/Brazilian Air Force Mass at launch  5735 kg Dry Mass   kg Basic shape   Dimension (m)   Equipment  7 X-band military payload and 50 efficient Ka-band Solar array   Stabilization   Propulsion   DC power   Design lifetime  18 yrs

SGDC with Koreasat-7 atop

Location:

Description:

• SGDC is the first Brazilian government satellite, as well as the initial spacecraft to be launched by Arianespace for Visiona Tecnologia Espacial S.A. – the SGDC prime contractor, responsible for the program management, overall system integration and end-to-end communication. This dual-use (civil and military) relay platform will enable the implementation of a secure satellite communications system for the Brazilian government and armed forces, while also reducing the digital divide in Brazil.
• Based on the HTS Spacebus 4000-C3 platform, the SGDC satellite carries 57 transponders in Ka- and X-band and is designed for a life of 15 years. It will have a weight of approximately 5,800kg at launch and a payload power of more than 11kW.
• The dual-use telecommunications satellite is intended to provide secure strategic defence communications for the Brazilian Ministry of Defence, and broadband services for the Ministry of Telecommunications, through the National Broadband Plan (PNBL).
• The satellite will be positioned in geostationary orbit at an angle of 75° west and will be operated by Visiona Tecnologia Espacial, a joint venture between Embraer Defense & Security and Telebras Telecomunicaçoes Brasileiras. It is expected to enter service in the first quarter of 2017.
• The satellite is fitted with seven X-band military payload and 50 efficient Ka-band payload transponders offering a throughput of 80Gbps.
  The five X-band transponders will cover all of South America and neighbouring maritime routes. The Ka-band payload will offer government strategic data communications and expand broadband services to remote areas in Brazil.

Mission details:

• After delays due to social unrest in French Guiana, Arianespace on May 4, 2017 resumed launches with flight VA236 on launcher L589, placing the Brazilian military communications satellite ′Satelite Geoestacionario de Defesa e Comunicacoes Estrategicas 1′ (SGDC-1) and the Korea Telecom satellite Koreasat-7 in geotransfer orbit.

External links:

• Satellite tracking (n2ya.com): Real time satellite tracking