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 89.840°
Eccentricity 0.00021
RA ascending node 3.879 hr
Argument perigee 76.448°
Mean anomaly 283.699°
Orbital period 97.139 min
Epoch of osculation 09 May 2025, 06:42

See historical orbital elements »

Derived Quantities

Min Altitude 627.3 km
Mean Altitude 628.8 km
Peak Altitude 630.3 km

Orbital History

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Launched alongside

DELTA 2 R/B

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Fairfield

Latitude:
Longitude:
Timezone:

41.14°N
73.26°W
EDT

Color scheme