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USA 137

retired

CommunicationsHEOCOSPAR 1998-005ALaunched 1/29/1998

Mission & Launch

Launch Mission: USA 137 [SDS12]
Launch Vehicle: Atlas IIA
Launch Date: 1/29/1998
Last Contact: 1/1/2010

Orbit & Mass

Orbit Class: HEO
Altitude: 20,174.5 km
Inclination: 64.23 deg
Dry Mass: 2,000 kg
Total Mass: 2,500 kg

Payload Classification

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

Organizations

Operator: U.S. National Reconnaissance Office (NRO)
Manufacturer: Hughes Space and Comms. Co (Hughes Satellite Systems)

Constellation

Name: Satellite Data System
Active Satellites: 6

Registry

COSPAR ID: 1998-005A
UN Registration: ST/SG/SER.E/341