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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 |