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 26013.62841189 .00001103 00000-0 00000-0 0 9991
2 66586 63.2830 158.9835 6812408 269.6234 18.6568 2.00624587 1071
Epoch: Jan 13, 2026 •
Age: 47 hours
Current Status
Altitude 2200.9 km
Velocity 8.84 km/s
Sub-Earth Point -60.67°S,
73.01°E
Launch Date Nov 21, 2025
Age 0.1 years
Type other
Technical Details
Classification Payload
Mass 4000.00 kg
Dry Mass 2500.00 kg
Total Mass 4000.00 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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