EO·Atlas
GOCE Electrostatic Gravity Gradiometer (EGG)
Compiled from public sources on 2026-06-08. Not independently verified by ONERA (Office National d'Etudes et de Recherches Aerospatiales).
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Six-accelerometer electrostatic gravity gradiometer flown as the main GOCE payload.
GOCE Electrostatic Gravity Gradiometer (EGG) was the primary gravity instrument on ESA's GOCE mission. It used six three-axis electrostatic accelerometers mounted in three orthogonal gradiometer arms, each 50 cm long, to measure gravity-gradient components in orbit [1]. GOCE used the gradiometer with drag-free control at low altitude to map Earth's static gravity field and geoid at about 100 km spatial resolution [2][3]. ONERA completed the accelerometer sensor heads for delivery to the GOCE prime contractor before spacecraft integration [4].
Compositional position
- Satellite gravity gradiometryvia GOCE
GOCE EGG directly measured gravity gradients for satellite gravity gradiometry.
None on record.
- [1]GOCE instruments, ESAagency doc2026-06-08
- [2]GOCE operations, ESAagency doc2026-06-08
- [3]GOCE mission visuals, ESA Earth Onlineagency doc2026-06-08
- [4]Scientists view GOCE satellite, ESAagency doc2026-06-08