GP-B

Launch Details
Launched 19 April 2004
Flight ended
Status Non-operational
Launch site Air Force Western Test Range, California, USA
Owner United States
NORAD ID 28230
COSPAR ID 2004-014A
Alternative names GRAVITY PROBE B
Observing

Current orbital elements

Inclination 89.836°
Eccentricity 0.00019
RA ascending node 3.720 hr
Argument perigee 99.318°
Mean anomaly 260.826°
Orbital period 97.126 min
Epoch of osculation 03 Sep 2025, 04:29

See historical orbital elements »

Derived Quantities

Min Altitude 626.9 km
Mean Altitude 628.3 km
Peak Altitude 629.6 km

Orbital History

Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.

Launched alongside

DELTA 2 R/B

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South El Monte

Latitude:
Longitude:
Timezone:

34.05°N
118.05°W
PDT

Color scheme