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USA 139

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Signals IntelligenceGEOCOSPAR 1998-029ALaunched 5/9/1998

Mission & Launch

Launch Mission: USA 139 [RH8]
Launch Vehicle: Titan 401B
Launch Date: 5/9/1998

Orbit & Mass

Orbit Class: GEO
Altitude: 35,790 km
Inclination: 0.1 deg
Dry Mass: 4,600 kg
Total Mass: 5,000 kg

Payload Classification

Mission Type

Signals Intelligence

Payload Category

SIG

Payload Class

D

Organizations

Operator: U.S. National Reconnaissance Office (NRO)
Manufacturer: Unknown USA

Registry

COSPAR ID: 1998-029A
UN Registration: ST/SG/SER.E/344