About Radio RS-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 12998U 81120B 26050.12109267 .00000031 00000-0 26425-3 0 9998
2 12998 82.9621 184.8233 0018756 6.9280 114.0198 12.03196616939965
Epoch: Feb 19, 2026 •
Age: 7 hours
Current Status
Altitude 1659.4 km
Velocity 7.05 km/s
Sub-Earth Point -17.56°S,
118.77°W
Launch Date Dec 17, 1981
Age 44.1 years
Type other
Technical Details
Classification Payload
Mass 70.00 kg
Dry Mass 70.00 kg
Total Mass 70.00 kg
Length 0.80 m
Diameter 0.80 m
Span 0.80 m
Shape Poly
Manufacturer NPOPM/MAIO
Bus Type Strela-1M
Phase Status In Orbit
Owner/State NPOPM/MAIO/SU
Large Constellations
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