About Tongxin Jishu Shiyan 21
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 66586U 25269A 25326.02704417 .00003197 00000-0 53570-3 0 9991
2 66586 51.0366 174.7096 7517987 225.0489 41.6572 2.00992210 24
Epoch: Nov 22, 2025 •
Age: 317 hours
Current Status
Altitude 37911.0 km
Velocity 1.72 km/s
Sub-Earth Point 41.09°N,
64.54°E
Launch Date Nov 21, 2025
Age 14 days
Type other
Technical Details
Classification Payload
Mass 10000.00 kg
Dry Mass 6000.00 kg
Total Mass 10000.00 kg
Length 7.00 m
Diameter 4.00 m
Span 30.00 m
Shape Box+ 2 pan+dish
Manufacturer SAST
Bus Type TJS11
Phase Status In Orbit
Owner/State ZZB/SAST/CN
Large Constellations
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