Polaris Intelligence
Polaris
Intelligence
About
Ctrl K
Sign in
© Polaris Intelligence 2026
PrivacyTermsAdmin

DMSP F-4

retired
Earth ObservationLEOCOSPAR 1979-050ALaunched 6/6/1979
Admin Edit
Mission & Launch
Launch Mission
DMSP 5D F-4
Launch Vehicle
Thor DSV-2U
Launch Date
6/6/1979
Last Contact
8/8/1980
Orbit & Mass
Orbit Class
LEO
Altitude
808.5 km
Inclination
98.41 deg
Dry Mass
447 kg
Total Mass
1,177 kg
Payload Classification
Mission Type
Earth Observation
Payload Category
MET
Payload Class
D
Organizations
Operator
U.S. Air Force
Manufacturer
RCA Astro Electronics (Astro Space)
Constellation
Name
DMSP
Active Satellites
2
Registry
COSPAR ID
1979-050A
UN Registration
ST/SG/SER.E/026
Track