About DMSP F-4
Group: 3 satellites
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Live Position
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Upcoming Passes
Altitude History
Altitude vs Time
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Two-Line Element Set
1 11389U 79050A 26014.16889843 .00000104 00000-0 57924-4 0 9999
2 11389 98.6110 330.4691 0010923 230.5129 129.5088 14.29275625353706
Epoch: Jan 14, 2026 •
Age: 7 hours
Current Status
Altitude 813.7 km
Velocity 7.45 km/s
Sub-Earth Point 71.84°N,
22.71°E
Launch Date Jun 6, 1979
Age 46.6 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
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