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OSC → Orbital ATK: Aquila → GeoStar-1


Orbital ATK’s Aquila, later renamed GEOStar-1, spacecraft bus is a compact, flexible, high performance platform for a wide variety of defense and civil missions including weather, Earth observation, overhead persistent infrared (OPIR), intelligence surveillance and reconnaissance (ISR), space situational awareness (SSA), position, navigation, and timing (PNT), and tactical communications. The platform is optimized for GEO missions (adaptable for MEO) for launch aboard Minotaur, Falcon, and EELV launch vehicles. The avionics architecture has been configured for single-string, selective, or full redundancy, supporting missions with durations up to eight years. GEOStar-1 can accommodate 200W payload power, which is expandable to 700 W with expanded solar arrays and additional battery modules, and 1.5 kW with increased bus size. The spacecraft can support payloads up to 150 kg. GEOStar-1's precision pointing, knowledge, and agility combined with a large delta-v capacity make it a premier spacecraft for small GEO missions

Satellite Ordered Date Launcher Weight (kg) Remarks
Launch BOL
GSSAP 1 (USA 253) 28.07.2014 Delta-4M+(4,2)
GSSAP 2 (USA 254) 28.07.2014 Delta-4M+(4,2)
GSSAP 3 (USA 270) 19.08.2016 Delta-4M+(4,2) (upg.)
GSSAP 4 (USA 271) 19.08.2016 Delta-4M+(4,2) (upg.)
MITEx A (Wild Geese, USA 187) 21.06.2006 Delta-7925