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GPS IIA-18

retired

Positioning Navigation TimingMEOCOSPAR 1996-056ALaunched 9/12/1996

Mission & Launch

Launch Mission: USA 128 (GPS IIA-27)
Launch Vehicle: Delta 7925
Launch Date: 9/12/1996
Last Contact: 1/22/2012

Orbit & Mass

Orbit Class: MEO
Altitude: 20,181.5 km
Inclination: 54.71 deg
Orbit Plane: 3
Dry Mass: 860 kg
Total Mass: 1,881 kg

Payload Classification

Mission Type: Positioning Navigation Timing
Payload Category: NAV
Payload Class: D

Organizations

Operator: U.S. Space Systems Command
Manufacturer: Boeing

Constellation

Name: GPS
Active Satellites: 35
Planned Satellites: 24

Registry

COSPAR ID: 1996-056A
UN Registration: ST/SG/SER.E/322