Spacecraft Buses

Spacecraft Buses  

Northrop Grumman offers a complete line of spacecraft buses tailored to accommodate a variety of payloads and missions ranging from several months to decades of reliable service. Ideally suited for commercial national security space, Earth and space science and technology demonstration missions, Northrop Grumman has proven and reliable spacecraft buses for your LEO, MEO, GEO or interplanetary mission.

​Spacecraft ​Mission Type ​Orbit ​Payload Capability ​Mission Life ​Delivery ​Launch Vehicle
LEOStar-2 ​Civil/

Defense

​LEO ​150 kg/400W 1-5 years 16-36 Months Pegasus or Minotaur I, IV or C
LEOStar-3 ​Civil/

Defense

​LEO ​3,000 kg/800W 1-10 years 21-36 Months Minotaur, Antares or External Vehicles
GEOStar-1 ​National Security

Space

​GEO ​150 kg/200W 5-7 years 27-30 Months Minotaur V, External Vehicles or Antares (future)
GEOStar-2 ​Communications ​GEO

500 kg/5.5kW

15-18 years 24-27 Months External Vehicles
GEOStar-3 ​Communications ​GEO ​800 kg/8.0kW 15-18 years 27-30 Months External Vehicles
MicroStar-1 Constellation LEO ​15kg/360W 1-3 years 12-15 Months Rideshare, Pegasus or Minotaur I
ESPASat ​National Security

Space

​​GEO ​30kg/30W 3-5 years >24 Months EELV
ESPAStar ​National Security

Space

​​LEO, GTO or GEO ​1,080kg (181 kg/port)/1.2kW 5 years 22-24 Months EELV
Mission Extension Vehicle (MEV) In-Space Servicing GEO ​N/A 15 years 28 Months External Vehicles
Cygnus Human Exploration Various 3,200-3,500 kg (pressurized) 6 months-1 year 24-27 Months Antares or External Vehicles
ExoStar Interplanetary Exploration Interplanetary ​210kg/250W 7-10 years 36-42 Months External Vehicles

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