About Kosmos-2129
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 21104U 91009E 26059.13727031 -.00000014 00000-0 14528-4 0 9993
2 21104 74.0341 345.2499 0025100 176.8729 247.2841 12.53741917603853
Epoch: Feb 28, 2026 •
Age: 9 hours
Current Status
Altitude 1465.3 km
Velocity 7.13 km/s
Sub-Earth Point 64.13°N,
86.66°E
Launch Date Feb 12, 1991
Age 35 years
Type other
Technical Details
Classification Payload
Mass 60.00 kg
Dry Mass 60.00 kg
Total Mass 60.00 kg
Length 0.80 m
Diameter 0.80 m
Span 0.80 m
Shape Poly
Manufacturer NPOPM
Bus Type Strela-1 11F625
Phase Status In Orbit
Owner/State UNKSR/SU
Large Constellations
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