About DMSP F-4
Group: 3 satellites
Description loading...
Live Position
Loading 3D Globe...
Upcoming Passes
Altitude History
Altitude vs Time
uPlot chart will show altitude changes over time
Two-Line Element Set
1 11389U 79050A 26059.11198599 .00000179 00000-0 87363-4 0 9996
2 11389 98.6179 14.8880 0012993 100.1981 260.0667 14.29300809360122
Epoch: Feb 28, 2026 •
Age: 20 hours
Current Status
Altitude 797.8 km
Velocity 7.47 km/s
Sub-Earth Point 77.56°N,
140.8°E
Launch Date Jun 6, 1979
Age 46.7 years
Type other
Technical Details
Classification Payload
Mass 447.00 kg
Dry Mass 447.00 kg
Total Mass 1177.00 kg
Length 6.10 m
Diameter 1.50 m
Span 6.10 m
Shape Box + Pan
Manufacturer RCA
Bus Type Block 5D
Phase Status Attached in Orbit
Owner/State SAMSO/US
Large Constellations
Loading constellations...