About Flock 4h-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 66724U 25276BL 26019.16001873 .00006939 00000-0 33692-3 0 9994
2 66724 97.4354 95.3236 0003810 102.5232 257.6429 15.18771102 7054
Epoch: Jan 19, 2026 •
Age: 16 hours
Current Status
Altitude 520.2 km
Velocity 7.61 km/s
Sub-Earth Point 77.39°N,
1.28°E
Launch Date Nov 28, 2025
Age 0.1 years
Type earth observation
Technical Details
Classification Payload
Mass 5.70 kg
Dry Mass 5.70 kg
Total Mass 5.70 kg
Length 0.30 m
Diameter 0.10 m
Span 0.30 m
Shape Box+2 pan
Manufacturer PLAN
Bus Type Cubesat 3U
Phase Status In Orbit
Owner/State PLAN/US
Large Constellations
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