ARSAT-3K

Summary

ARSAT-3K is a geostationary communications satellite bus designed and manufactured by INVAP of Argentina for the local telecommunication company ARSAT S.A.[2][3] It is a small (4.2 kW of power generation and 3,000 kg (6,600 lb) of launch mass) three axis stabilized platform designed, manufactured and tested completely in Argentina.[4][5] It is capable of carrying up to 350 kg (770 lb) of payload with a maximum power consumption of 3.4 kW at the end of life. It currently[when?] uses only chemical propulsion, but a hybrid solution which would use bi-propellant propulsion for orbit raising and electric propulsion for station keeping is being developed. A purely electric propulsion version is planned.[6]

ARSAT-3K
ARSAT-1 while in the INVAP's clean room
ARSAT-1 in INVAP.
ManufacturerINVAP
Country of originArgentina
OperatorARSAT S.A.
ApplicationsCommunications
Specifications
Spacecraft typeGeostationary Communications satellite
Launch mass2,900 kg (6,400 lb) to 3,000 kg (6,600 lb)
Dry mass< 1,500 kg (3,300 lb)
Payload capacity350 kg (770 lb) and 3.5 kW[1]
DimensionsBus without payload nor solar panels:2 m (6.6 ft) × 1.8 m (5.9 ft) × 2.9 m (9.5 ft)
Span with solar panels deployed: (16.5 m (54 ft)
Power4.2 kW (end of life)
EquipmentKu band, Ka band and C Band payloads.
RegimeGeostationary
Design life15 years
Production
StatusIn Production
On order3
Built2
Launched2
Operational1
Maiden launch16 October 2014, 21:43 (2014-10-16UTC21:43Z) UTC, ARSAT-1

Platform Versions

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ARSAT-3K

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The ARSAT-3K is the initial version of this bus. It is comparable to the Thales Alenia Space Spacebus 3000B2. It uses an integrated chemical propulsion system supplied by EADS Astrium for both orbit raising and station keeping.[7]

ARSAT-3H

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The ARSAT-3H is the second version of this bus, which initiated its development during 2015. It will use an hybrid approach with bi-propellant propulsion for orbit raising and electric propulsion for station keeping.[8]

It will keep the launch mass of 3 t (6,600 lb), but have enhanced capabilities, being able to carry a 350 kg (770 lb) of payload with a maximum power consumption of 7 kW at the end of its design life.[8]

ARSAT-3E

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The ARSAT-3E will be the third version of the platform. It will use electric propulsion exclusively. It will keep the payload and power envelope of the ARSAT-3H while applying the improvements to cost and weight reduction.[8]

List of satellites

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The Argentine Geostationary Satellite Plan 2015-2035 (Spanish: Plan Satelital Geoestacionario Argentino 2015-2035) establishes a roadmap for the platform development until 2035.

ARSAT Satellite Plan
Satellite Bus Payload Orbital Position Launch Status
ARSAT-1 ARSAT-3K Ku band 71.8° West 21:43:52, October 16, 2014 (UTC) (2014-10-16T21:43:52Z) Operational
ARSAT-2 ARSAT-3K Ku band and C Band[9] 81° West 20:30:00, September 30, 2015 (UTC) (2015-09-30T20:30:00Z)[10] Operational[11][12]
ARSAT SG-1 ARSAT-3K Ka band 81° West 2025[13] In Development
Chemical 2 ARSAT-3K Ka band TBA TBA Planned

See also

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References

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  1. ^ Ley de desarrollo de la industria satelital [Satellite industry development bill] (Expediente 175/15, Annex I) (in Spanish). September 30, 2015. Retrieved September 1, 2015.
  2. ^ "ARSAT Satellites". INVAP. Archived from the original on September 24, 2015. Retrieved August 24, 2015.
  3. ^ Belluscio, Alejandro G. (October 6, 2014). "ArSat-1: Argentina to communicate its heightened space ambitions". NASA SpaceFlight. Retrieved August 25, 2015.
  4. ^ "Diseño y fabricación" [Design and Manufacturing] (in Spanish). AR-SAT S.A. Archived from the original on July 27, 2016. Retrieved August 24, 2015.
  5. ^ Launch Kit VA220 Intelsat 30 and ARSAT-1 (PDF). Arianespace. October 2014. Archived from the original (PDF) on December 28, 2014. Retrieved August 28, 2015.
  6. ^ Ley de desarrollo de la industria satelital [Satellite industry development bill] (Expediente 175/15, Annex I) (in Spanish). September 30, 2015. p. 73. Retrieved September 1, 2015.
  7. ^ Ley de desarrollo de la industria satelital [Satellite industry development bill] (Expediente 175/15, Annex I) (in Spanish). September 30, 2015. p. 73, 91–95. Retrieved September 1, 2015.
  8. ^ a b c Ley de desarrollo de la industria satelital [Satellite industry development bill] (Expediente 175/15, Annex I) (in Spanish). September 30, 2015. p. 73, 96–99. Retrieved September 1, 2015.
  9. ^ Belluscio, Alejandro G. (September 21, 2015). "ARSAT-2: Argentina consolidates as Latin American satellite leader". NASA SpaceFlight. Retrieved October 1, 2015.
  10. ^ Bergin, Chris (September 30, 2015). "Ariane 5 conducts dual launch for Australia and Argentina". NASA SpaceFlight. Retrieved October 1, 2015.
  11. ^ "Sin definición estratégica de Macri, ARSAT busca su destino de la mano de privados" [With no strategic definitions from President Macri, ARSAT searches for its destiny in the private sector]. Urgente 24. July 18, 2016. Retrieved August 25, 2015.
  12. ^ "El ARSAT-2 llegó a órbita geoestacionaria" [The ARSAT-2 has reached the geostationary orbit] (in Spanish). ARSAT S.A. October 10, 2015. Archived from the original on July 27, 2016. Retrieved October 10, 2015.
  13. ^ Jewett, Rachel (March 20, 2023). "Arsat Taps CPI for ARSAT-SG1 Gateway Systems". Via Satellite. Retrieved December 14, 2023.