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USA 55

retired

CommunicationsLEOCOSPAR 1990-028BLaunched 4/5/1990

Mission & Launch

Launch Mission: Pegsat/USA 55 GLOMR
Launch Vehicle: Pegasus
Launch Date: 4/5/1990
Last Contact: 10/5/1993

Orbit & Mass

Orbit Class: LEO
Altitude: 579.5 km
Inclination: 94.14 deg
Dry Mass: 68 kg
Total Mass: 68 kg

Payload Classification

Mission Type: Communications
Payload Category: COM
Payload Class: D

Organizations

Operator: U.S. Defense Advanced Research Projects Agency (DARPA)
Manufacturer: Defense Systems Inc

Registry

COSPAR ID: 1990-028B
UN Registration: ST/SG/SER.E/250