The A2100 is a model of communications satellite spacecraft made by Lockheed Martin Space Systems. It is used as the foundation for telecommunications payloads in geosynchronous orbit, as well as GOES-R weather satellites and GPS Block IIIA satellites. Over 40 satellites use the A2100 bus.[1][2]

History

The first satellite, AMC-1, was launched September 8, 1996, and has achieved 15-year on-orbit service life.[3][4] Since 1996 there have been over 45 of the A2100 based satellites launched, with over 400 years of total on-orbit service.[5] Other A2100 spacecraft include JCSAT-13 and VINASAT-2, which were launched May, 2012 on an Ariane 5 rocket,[6] as well as Arabsat-6A and Hellas Sat 4/SaudiGeoSat-1 of Saudi Arabia's Arabsat-6G program.[7]

In 2002, Lockheed Martin Commercial Space Systems was given a Frost and Sullivan Satellite Reliability Award for excellence in the production of flexible and reliable communications satellites used in geosynchronous Earth orbit.[8]

A2100 customers includes communications companies around the world, including Astra, Telesat, SKY Perfect JSAT Group and others.

Design

The Lockheed Martin A2100 geosynchronous spacecraft series is designed for a variety of telecommunications needs including Ka band broadband and broadcast services, fixed satellite services in C-band and Ku band payload configurations, high-power direct broadcast services using the Ku band frequency spectrum, and mobile satellite services using UHF, L-band and S-band payloads.[9]

The A2100 satellite system was developed by the Astro Space team at its East Windsor, New Jersey facility, with team members delivering a flexible common bus with fewer components, lower spacecraft weight, and reduced customer delivery time.[10]

The A2100 is being supplanted by the LM2100, an evolutionary upgrade with several new features. The military version is the LM2100 Combat Bus.[11][12]

Propulsion system

The attitude control system includes reaction wheels,[13] with momentum desaturation and main motor maneuver attitude control propulsion provided by small monopropellant hydrazine motors. This hydrazine supply is contained in a central propellant tank of 0.90 m diameter and up to 2.00 m length depending on the customer's requirements.[14] This tank's maximum length was later increased to 2.55 m.[15] The liquid apogee engine uses hydrazine fuel from the central tank along with nitrogen tetroxide oxidizer from two flanking tanks of 0.54 m diameter and up to 1.65 m long.[16] Orbit maintenance is performed by the small hydrazine motors and ion thrusters.[17] The maximum propellant supply (with the largest tanks at 95% fill factor) are 1368 kg of hydrazine fuel and 627 kg of nitrogen tetroxide oxidizer.

According to Moog-ISP, the A2100 platform uses its LEROS bipropellant Liquid Apogee Engine.[18]

Satellite orders

A2100A

Satellite Country Operator Type Coverage Launch date (UTC) Rocket Changes Status
GE-1 United States SES Americom Television broadcasting 24 C-band, 24 Ku-band 8 September 1996 Atlas IIA Known as AMC 1 Active
GE-2 United States SES Americom Television broadcasting 24 C-band, 24 Ku-band 30 January 1997 Ariane-44L Known as AMC 2 Retired
GE-3 United States SES Americom Television broadcasting 24 C-band, 24 Ku-band 4 September 1997 Atlas IIAS Known as Eagle 1 Active
GE-7 United States SES Americom Television broadcasting 24 C-band 14 September 2000 Ariane 5G Known as AMC 7 Retired
GE-8 United States SES Americom Television broadcasting 24 C-band 20 December 2000 Ariane 5G Known as AMC 8 (Aurora 3) Active
GE-10 United States SES Americom Television broadcasting 24 C-band 5 February 2004 Atlas IIAS Retired
GE-11 United States SES Americom Television broadcasting 24 C-band 19 May 2004 Atlas IIAS Active
GE-18 United States SES Americom Television broadcasting 24 C-band 19 May 2004 Ariane 5 ECA Active
BSAT-3a Japan BSAT Corp Television broadcasting 12 Ku-band 14 August 2007 Ariane 5 ECA Active
BSAT-3b Japan BSAT Corp Television broadcasting 12 Ku-band 28 October 2010 Ariane 5 ECA Active
BSAT-3c Japan BSAT Corp Television broadcasting 24 Ku-band 6 August 2011 Ariane 5 ECA Active
GOES-R United States NOAA Meteorology 19 November 2016 Atlas V 541 Known as GOES 16 Active
GOES-S United States NOAA Meteorology 1 March 2018 Atlas V 541 Known as GOES 17 Active
GOES-T United States NOAA Meteorology 1 March 2022 Atlas V 541 Known as GOES 18 Active
GOES-U United States NOAA Meteorology 2024 Falcon Heavy Awaiting launch
ABS-7 Bermuda ABS Television broadcasting 24 Ku-band, 6 Ka-band 4 September 1999 Ariane-42P Known as ABS 7 Inclined
Nemesis 1 United States National Reconnaissance Office SIGINT, COMINT 8 September 2009 Atlas V 401 Known as PAN, PAN360, USA 207 Active
Nemesis 2 United States National Reconnaissance Office SIGINT, COMINT 17 September 2014 Atlas V 401 Known as CLIO, USA 257 Active
Telkom 1 Indonesia Telkom Indonesia Communications 24 C-band 12 August 1999 Ariane-42P Retired
Vinasat-1 Vietnam VNPT Communications 8 C-band, 12 Ku-band 18 April 2008 Ariane 5 ECA Active
Vinasat-2 Vietnam VNPT Communications 24 Ku-band 15 May 2012 Ariane 5 ECA Active
Zhongwei 1 China China Satcom Communications 18 C-band, 20 Ku-band 30 May 1998 Long March 3B Known as APStar 9A Retired

A2100AX

Satellite Country Operator Type Coverage Launch date (UTC) Rocket Changes Status
EchoStar 3 United States EchoStar Television broadcasting 32 Ku-band 5 October 1997 Atlas IIAS Retired
EchoStar 4 United States EchoStar Television broadcasting 32 Ku-band 7 May 1998 Proton-K Blok-DM3 Retired
EchoStar 7 United States EchoStar Television broadcasting 32 Ku-band 7 May 1998 Atlas IIIB-DEC Retired
GE 1A United States SES Americom Communications 28 Ku-band 1 October 2000 Proton-K Blok-DM3 Known as NSS 11 Active
GE 4 United States SES Americom Television broadcasting & satellite internet 24 C-band, 24 Ku-band 13 November 1999 Ariane-44LP Known as AMC 4 Active
GE 6 United States SES Americom Television broadcasting & satellite internet 24 C-band, 24 Ku-band 21 October 2000 Proton-K Blok-DM3 Known as AMC 6 (Rainbow 2) Active
LMI 1 Bermuda ABS Television broadcasting & satellite internet 28 C-band, 16 Ku-band 26 September 1999 Proton-K Blok-DM3 Known as ABS 6 Active
Nimiq 1 Canada Telesat Satellite internet 32 Ku-band 20 May 1999 Proton-K Blok-DM3 Active
Nimiq 2 Canada Telesat Satellite internet 32 Ku-band 29 December 2002 Proton-M Active
N-SAT 110 Japan SKY Perfect JSAT Satellite internet 24 Ku-band 6 October 2000 Ariane-42L Known as Superbird 5 Retired

A2100AXS

Satellite Country Operator Type Coverage Launch date (UTC) Rocket Changes Status
AMC-14 United States SES Americom Television broadcasting 32 Ku-band 14 March 2008 Proton-M Phase 1 Active
AMC-15 United States SES Americom Television broadcasting 24 Ku-band, 12 Ka-band 14 October 2004 Proton-M Phase 1 Active
AMC-16 United States SES Americom Television broadcasting 24 Ku-band, 12 Ka-band 14 October 2004 Proton-M Phase 1 Retired
Astra 1KR Luxembourg SES S.A. Television broadcasting 32 Ku-band 20 April 2006 Atlas V 431 Active
Astra 1L Luxembourg SES S.A. Television broadcasting 29 Ku-band, 2 Ka-band 4 May 2007 Ariane 5 ECA Active
EchoStar 10 United States EchoStar Television broadcasting 42 Ku-band 15 February 2006 Zenit-3SL Active
JCSat 9 Japan SKY Perfect JSAT Communications 20 C-band, 20 Ku-band, 1 S-band 12 April 2006 Zenit-3SL Known as JCSat 5A Active
JCSat 10 Japan SKY Perfect JSAT Communications 12 C-band, 30 Ku-band 11 August 2006 Ariane 5 ECA Known as JCSat 3A Active
JCSAT-11 Japan SKY Perfect JSAT Communications 12 C-band, 30 Ku-band 5 September 2007 Proton-M Phase 1 Launch failure
JCSat 12 Japan SKY Perfect JSAT Communications 12 C-band, 30 Ku-band 21 August 2008 Ariane 5 ECA Known as JCSat RA Active
JCSat 13 Japan SKY Perfect JSAT Communications 44 Ku-band 15 May 2012 Ariane 5 ECA Known as JCSat 4B Active
NSS-6 Netherlands SES S.A. Satellite internet 50 Ku-band 17 December 2002 Ariane 44L Active
NSS-7 Netherlands SES S.A. Satellite internet 36 C-band, 36 Ku-band 16 April 2002 Ariane 44L Active
Rainbow-1 United States EchoStar Television broadcasting 36 Ku-band 17 July 2003 Atlas V 521 Known as EchoStar 12 Retired
Sirius 4 (Astra 4A) Sweden SES Sirius Communications 52 Ku-band, 2 Ka-band 17 November 2007 Proton-M Phase 1 Active
Garuda 1 Indonesia Asoa Cellular Satellite Mobile communications 88 L-band 12 February 2000 Proton-K Blok-DM3 Active

A2100M (Military)

Satellite Country Operator Type Coverage Launch date (UTC) Rocket Changes Status
AEHF 1 United States Air Force Space Command Military communications 14 August 2010 Atlas V 531 Known as USA 214 Active
AEHF 2 United States Air Force Space Command Military communications 4 May 2012 Atlas V 531 Known as USA 235 Active
AEHF 3 United States Air Force Space Command Military communications 18 September 2013 Atlas V 531 Known as USA 246 Active
AEHF 4 United States Air Force Space Command Military communications 17 October 2018 Atlas V 551 Known as USA 288 Active
AEHF 5 United States Air Force Space Command Military communications 8 August 2019 Atlas V 551 Known as USA 292 Active
AEHF 6 United States Air Force Space Command Military communications 26 March 2020 Atlas V 551 Known as USA 298 Active
MUOS 1 United States United States Navy Military communications 24 February 2012 Atlas V 551 Active
MUOS 2 United States United States Navy Military communications 19 July 2013 Atlas V 551 Active
MUOS 3 United States United States Navy Military communications 21 January 2015 Atlas V 551 Active
MUOS 4 United States United States Navy Military communications 2 September 2015 Atlas V 551 Active
MUOS 5 United States United States Navy Military communications 24 June 2016 Atlas V 551 Active
GPS-3 1 United States Air Force Space Command Navigation 23 December 2016 Falcon 9 Known as Navstar 77, USA 289, Vespucci Active
GPS-3 2 United States Air Force Space Command Navigation 22 August 2019 Delta IV M+ (4,2) Known as Navstar 78, USA 293, Magellan Active
GPS-3 3 United States Air Force Space Command Navigation 30 June 2020 Falcon 9 Known as Navstar 79, USA 304, Columbus Active
GPS-3 4 United States Air Force Space Command Navigation 5 November 2020 Falcon 9 Known as Navstar 80, USA 309, Sacagawea Active
GPS-3 5 United States Air Force Space Command Navigation 17 June 2021 Falcon 9 Known as Navstar 81, USA 320, Neil Armstrong Active
GPS-3 6 United States Air Force Space Command Navigation 18 January 2023 Falcon 9 Known as Navstar 82, USA 343, Amelia Earhart Active
GPS-3 7 United States Air Force Space Command Navigation 2024 Vulcan Centaur Awaiting launch
GPS-3 8 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3 9 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3 10 United States Air Force Space Command Navigation 202x Awaiting launch
SBIRS GEO 1 United States Air Force Space Command Early warning 2 SBIRS sensors 7 May 2011 Atlas V 401 Known as USA 230 Active
SBIRS GEO 2 United States Air Force Space Command Early warning 2 SBIRS sensors 19 March 2013 Atlas V 401 Known as USA 241 Active
SBIRS GEO 3 United States Air Force Space Command Early warning 2 SBIRS sensors 21 January 2017 Atlas V 401 Known as USA 273 Active
SBIRS GEO 4 United States Air Force Space Command Early warning 2 SBIRS sensors 20 January 2018 Atlas V 411 Known as USA 282 Active

LM2100 (Modernized)

Satellite Country Operator Type Coverage Launch date (UTC) Rocket Changes Status
Arabsat-6A Saudi Arabia Arabsat Communications 11 April 2019 Falcon Heavy Active
SaudiGeoSat-1/HellasSat-4 Saudi Arabia, Greece Arabsat, Hellas Sat Communications Ku-band, Ka-band 5 February 2019 Ariane 5 ECA Active
JCSAT-17 Japan SKY Perfect JSAT Mobile communications S-band 18 February 2020 Ariane 5 ECA Active

LM2100M (Modernized Military)

Satellite Country Operator Type Coverage Launch date (UTC) Rocket Changes Status
NG-OPIR-GEO 1 United States Air Force Space Command Early warning 2 NG-OPIR sensors 2023 Awaiting launch
NG-OPIR-GEO 2 United States Air Force Space Command Early warning 2 NG-OPIR sensors 202x Awaiting launch
NG-OPIR-GEO 3 United States Air Force Space Command Early warning 2 NG-OPIR sensors 202x Awaiting launch
GPS-3F 1 United States Air Force Space Command Navigation 2026 Awaiting launch
GPS-3F 2 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 3 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 4 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 5 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 6 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 7 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 8 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 9 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 10 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 11 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 12 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 13 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 14 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 15 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 16 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 17 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 18 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 19 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 20 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 21 United States Air Force Space Command Navigation 202x Awaiting launch
GPS-3F 22 United States Air Force Space Command Navigation 202x Awaiting launch
SBIRS GEO 5 United States Air Force Space Command Early warning 2 SBIRS sensors 18 May 2021 Atlas V 421 Known as USA 315 Active
SBIRS GEO 6 United States Air Force Space Command Early warning 2 SBIRS sensors 4 August 2022 Atlas V 421 Active

Cancelled orders

Satellite Country Operator Type Coverage
GE-9 United States SES Americom Television broadcasting 24 C-band
Jabiru 1 Australia NewSat Corporation Communications 50 Ka-band, 18 Ku-band, 1 S-band
Rainbow KA-1 United States Cablevision Television broadcasting Ka-band
Rainbow KA-2 United States Cablevision Television broadcasting Ka-band
Rainbow KA-3 United States Cablevision Television broadcasting Ka-band
Rainbow KA-4 United States Cablevision Television broadcasting Ka-band
Rainbow KA-5 United States Cablevision Television broadcasting Ka-band
Agrani 1 India Agrani Mobile communications
Garuda 2 Indonesia Asia Cellular Satellite Mobile communications 88 L-band
Astrolink 1 United States Astrolink Mobile communications Ka-band
Astrolink 2 United States Astrolink Mobile communications Ka-band
Astrolink 3 United States Astrolink Mobile communications Ka-band
Astrolink 4 United States Astrolink Mobile communications Ka-band
SBIRS GEO 7 United States Air Force Space Command Early warning 2 SBIRS sensors
SBIRS GEO 8 United States Air Force Space Command Early warning 2 SBIRS sensors

References

  1. "Lockheed Martin: A2100"
  2. "Lockheed Martin's A2100 bus modernized and poised for new missions". SpaceFlight Insider. 2017-08-11. Retrieved 2021-06-14.
  3. "First Lockheed Martin-Built A2100 Communications Satellite Marks 15 Years of On-Orbit Operations". Media - Lockheed Martin. Retrieved 2021-06-14.
  4. "First Lockheed Martin-Built A2100 Communications Satellite Marks 15 Years of On-Orbit Operations". Defense & Aerospace Week. September 21, 2011. Archived from the original on June 10, 2014. Retrieved November 12, 2013 via HighBeam.
  5. "Lockheed Martin-Built A2100 Satellites: Over 400 Cumulative Years In Orbit And Counting"
  6. "Ariane 5 ECA launches JCSAT-13 and VINASAT-2 into orbit"
  7. Lockheed Martin Completes Assembly on Arabsat's Newest Communications Satellite. Lockheed Martin. 20 February 2018.
  8. "Frost & Sullivan Award
  9. "Lockheed Martin: A2100" Archived 2013-09-30 at the Wayback Machine
  10. "A2100 History"
  11. McKinnon, Douglas V. (2016), "Lockheed Martin's A2100 Spacecraft Bus Modernization", 34th AIAA International Communications Satellite Systems Conference, American Institute of Aeronautics and Astronautics, doi:10.2514/6.2016-5724, ISBN 978-1-62410-457-2, retrieved 2021-06-14
  12. Hitchens, Theresa (2021-05-17). "New SBIRS Sat Creates Bridge To Next-Gen Missile Warning". Breaking Defense. Retrieved 2021-06-14.
  13. "Global Positioning System III overview and contractors"
  14. "ATK SSI P/N 80395-1 Datasheet"
  15. "ATK SSI P/N 80443-1
  16. "ATK SSI P/N 80405-1 Datasheet"
  17. "Lockheed Martin-Built A2100 Satellites: Over 400 Cumulative Years In Orbit And Counting"
  18. "Thrusters". Moog Inc. Archived from the original on 2016-08-10. Retrieved 2016-08-09.
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