About Checkmate 4
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 56164U 23050C 26061.57899392 .00000068 00000-0 50454-4 0 9995
2 56164 81.0041 174.0588 0004828 252.3658 107.6971 13.84799582147384
Epoch: Mar 2, 2026 •
Age: 23 hours
Current Status
Altitude 961.0 km
Velocity 7.38 km/s
Sub-Earth Point 62.03°N,
47.15°E
Launch Date Apr 2, 2023
Age 2.9 years
Type other
Technical Details
Classification Payload
Mass 300.00 kg
Dry Mass 300.00 kg
Total Mass 300.00 kg
Length 1.00 m
Diameter 0.60 m
Span 2.00 m
Shape Box + panels
Manufacturer YORKSS
Bus Type S-Class
Phase Status In Orbit
Owner/State SDA/US
Large Constellations
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