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 25325.54419352 .00000210 00000-0 99692-4 0 9995
2 11389 98.6034 277.5131 0012624 35.0025 325.1985 14.29242551346045
Epoch: Nov 21, 2025 •
Age: 9 hours
Current Status
Altitude 802.0 km
Velocity 7.45 km/s
Sub-Earth Point 31.29°N,
69.69°E
Launch Date Jun 6, 1979
Age 46.4 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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