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USA-18

retired

Signals IntelligenceLEOCOSPAR 1986-014HLaunched 2/9/1986

Mission & Launch

Launch Mission: USA 15-18 [NOSS8]
Launch Vehicle: Atlas H
Launch Date: 2/9/1986
Last Contact: 1/1/2007

Orbit & Mass

Orbit Class: LEO
Altitude: 1,108.5 km
Inclination: 63.46 deg
Dry Mass: 200 kg
Total Mass: 200 kg

Payload Classification

Mission Type: Signals Intelligence
Payload Category: SIG
Payload Class: D

Organizations

Operator: U.S. National Reconnaissance Office (NRO)
Manufacturer: Lockheed Martin

Registry

COSPAR ID: 1986-014H
UN Registration: ST/SG/SER.E/688