About Shi Jian 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 49330U 21094A 25324.83559968 -.00000327 00000-0 00000-0 0 9997
2 49330 4.6492 62.4918 0055855 168.9036 257.6539 1.00262928 3265
Epoch: Nov 20, 2025 •
Age: 19 hours
Current Status
Altitude 36024.8 km
Velocity 3.06 km/s
Sub-Earth Point -0.51°S,
128.07°E
Launch Date Oct 24, 2021
Age 4 years
Type other
Technical Details
Classification Payload
Mass 5000.00 kg
Dry Mass 2500.00 kg
Total Mass 5000.00 kg
Length 5.00 m
Diameter 2.50 m
Span 30.00 m
Shape Box + 2 Pan
Manufacturer SAST
Bus Type SJ21
Phase Status Grappled
Owner/State SAST/CN
Large Constellations
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