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 26027.58369886 .00001137 00000-0 00000-0 0 9997
2 66586 63.2879 157.5049 6815832 269.5599 18.6565 2.00648680 1351
Epoch: Jan 27, 2026 •
Age: 800 hours
Current Status
Altitude 12660.3 km
Velocity 5.18 km/s
Sub-Earth Point 20.00°N,
161.05°W
Launch Date Nov 21, 2025
Age 0.2 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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