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STPSat 6



STPSat 6 is a planned experimental spacecraft for the Department of Defense's Space Test Program (STP).

The satellite is based on Northrop Grumman Innovation Systems's (NGIS) (formerly Orbital ATK's) high-end modular bus A-500 bus, which another U.S. government agency bought for a different geosynchronous mission (likely DARPA's Phoenix program) but transferred to the Space Test Program after deciding it didn’t need it. The satellite will be directly inserted into an orbit slightly above the geostationary orbit.

Alternate Names

  • STPSat6
  • 49817

Facts in Brief

Launch Date: 2021-12-07
Launch Vehicle: Atlas V
Launch Site: Cape Canaveral, United States
Mass: 2572 kg

Funding Agency

  • United States Air Force Academy (United States)


  • Technology Applications

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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