Ctrl K

© Polaris Intelligence 2026

Privacy Terms Admin

USA 253

retired

Missile Warning TrackingGEOCOSPAR 2014-043ALaunched 7/28/2014

Mission & Launch

Launch Mission: AFSPC-4
Launch Vehicle: Delta 4M+(4,2)
Launch Date: 7/28/2014
Last Contact: 2/1/2021

Orbit & Mass

Orbit Class: GEO
Altitude: 35,746 km
Inclination: 0.16 deg
Dry Mass: 500 kg
Total Mass: 500 kg

Payload Classification

Mission Type: Missile Warning Tracking
Payload Category: EW*
Payload Class: D

Organizations

Operator: U.S. Air Force
Manufacturer: Northrop Grumman

Constellation

Name: GSSAP
Active Satellites: 6

Registry

COSPAR ID: 2014-043A
UN Registration: ST/SG/SER.E/745