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About BB 4
Group: 3 satellites
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Upcoming Passes
Passes for default location (London). Set your location on the main map for personalized predictions.
Altitude History
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Two-Line Element Set
1 57757U 23133B 26111.89974923 .00000320 00000-0 14350-3 0 9996
2 57757 81.0002 57.9787 0009052 129.1579 231.0403 14.20471437133437
Epoch: Apr 21, 2026 •
Age: 8 hours
Current Status
Altitude 829.4 km
Velocity 7.44 km/s
Sub-Earth Point 6.80°N,
117.2°E
Launch Date Sep 2, 2023
Age 2.6 years
Type other
Technical Details
Classification Payload
Mass 800.00 kg
Dry Mass 800.00 kg
Total Mass 800.00 kg
Length 0.30 m
Diameter 3.00 m
Span 9.00 m
Shape Box + pan
Manufacturer SPX/LEIDOS
Bus Type Starshield
Phase Status In Orbit
Owner/State SDA/US
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