ARSAT SG-1

ARSAT SG-1 (or ARSAT Second Generation-1), formerly known as ARSAT-3, is a geostationary communications satellite ordered by ARSAT and being designed by the Argentine company INVAP.[2][4][5]

ARSAT SG-1
Mission typeCommunication
OperatorARSAT
Mission duration15 years
Spacecraft properties
SpacecraftARSAT-3
BusARSAT-3E (enhanced)[1]
ManufacturerINVAP
Thales Alenia Space
Launch mass1,000 kilograms (2,200 lb)[2]
Start of mission
Launch date2023[2]
Orbital parameters
Reference systemGeocentric
RegimeGeostationary
Longitude81° West[3]
Transponders
Bandmulti spot Ka band bent-pipe[1]
Coverage areaArgentina
ARSAT Satellite Fleet
 

History

In 2015, ARSAT announced plans to add a third satellite to their satellite fleet, designated ARSAT-3. It was originally expected to be launched from French Guiana on an Ariane 5 ECA rocket in 2019,[6] and inserted at the 81° West longitude geostationary slot.[7] ARSAT-3 would be the third geostationary satellite built by INVAP, after ARSAT-1 and ARSAT-2, and would introduce an enhanced bus platform to enable enhanced services.[1][8]

On a 2016 presentation, ARSAT disclosed that the project would be restarted in 2017. It would be a multi spot Ka band satellite based on the ARSAT-3K platform and have 40Gbit/s of bandwidth. Its foot print would cover Argentina, Chile, Uruguay and part of Paraguay. Most presale contracts were signed during 2015 and were expecting to restart production by 2017 with the company's own resources.[9]

By 2019, a lack of funding from the Argentine government had effectively stalled the project. The new administration elected in December 2019 agreed to reverse course and officially finance the third satellite, which was now designated ARSAT SG-1 (Second Generation-1).[2][4] This name change reflects major improvements in SG-1's capabilities compared to the original ARSAT-3 design, including high-throughput Ka band capacity and all-electric propulsion. SG-1 is planned for launch in 2023 on a to-be-announced launch vehicle.[2]

See also

References
  1. "En Bariloche, INVAP ya trabaja en la construcción del nuevo satélite ARSAT 3" [In Bariloche, INVAP is already working manufacturing the ARSAT-3] (in Spanish). El Cordillerano. 2015-08-20. Retrieved 2015-08-24.
  2. Henry, Caleb (2020-03-19). "Argentine operator Arsat revives plans for third satellite". SpaceNews. Retrieved 2020-03-20.
  3. "ARSAT 3". SatBeams. Retrieved 2015-08-24.
  4. "Vuelven los satélites: Invap y Arsat preparan el SG1, una nueva generación de alta tecnología" [Return of the Satellites: Invap and Arsat prepare SG1, a new generation of advanced technology]. Portal de Noticias (in Spanish). 2020-02-20. Retrieved 2020-03-20.
  5. "ARSAT Satellites". INVAP. Retrieved 2015-08-24.
  6. "Autoridades argentinas presentes por la histórica partida del satélite Arsat-1" [Argentine authorities present for historic launch of ARSAT-2] (in Spanish). Telam. 2014-10-14. Retrieved 2015-08-24.
  7. Drewes, Lorena (September 2014). El Sector Espacial Argentino [The Argentina Space Sector] (PDF) (in Spanish). ARSAT. p. 27. ISBN 978-987-45569-0-5. Archived from the original (PDF) on 2015-09-23. Retrieved 2015-08-24.
  8. "Matías Bianchi: "Arsat-3 tiene desarrollo de nueva plataforma"" [Matías Bianchi states "Arsat-3 includes the development of a new platform"] (in Spanish). Argentina en el Espacio. 2014-12-18. Retrieved 2015-08-24.
  9. de Selding, Peter B. (2016-09-12). "Argentina's Arsat wants HTS Ka-band Arsat-3 sat by 2020 – 40 Gbps, 24 spot beams – with boosted domestic content". Space News. Archived from the original on 2016-09-13. Retrieved 2016-09-13.


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