About Gravity Probe B
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 28230U 04014A 26065.21027749 .00001429 00000-0 17348-3 0 9997
2 28230 89.8430 52.1460 0002146 79.0806 281.0661 14.83108453637085
Epoch: Mar 6, 2026 •
Age: 26 hours
Current Status
Altitude 627.6 km
Velocity 7.55 km/s
Sub-Earth Point 56.15°N,
147.7°W
Launch Date Apr 20, 2004
Age 21.8 years
Type other
Technical Details
Classification Payload
Mass 3145.00 kg
Dry Mass 2805.00 kg
Total Mass 3145.00 kg
Length 6.40 m
Diameter 2.60 m
Span 6.40 m
Shape Ell + Ant + 4 Pan
Manufacturer LMMS/STAN
Phase Status In Orbit
Owner/State MSFC/US
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