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 25326.02703546 .00002407 00000-0 52951-3 0 9998
2 66586 51.0640 174.7014 7516027 225.0831 41.6475 2.00919486 20
Epoch: Nov 22, 2025 •
Age: 25 hours
Current Status
Altitude 27657.5 km
Velocity 2.90 km/s
Sub-Earth Point 13.05°N,
99.58°E
Launch Date Nov 21, 2025
Age 2 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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