 | |
| Operator |  European Space Agency |
|---|---|
| Start of mission | |
| Launch date | 2032 (planned) |
| Orbital parameters | |
| Reference system | geocentric |
| Altitude | 400 km |
| Inclination | Between 65° and 75° |
← Wivern | |
TheNext Generation Gravity Mission (NGGM) is a proposedEarth observation satellite mission under development by theEuropean Space Agency'sFutureEO programme.[1][2] If approved, it will launch in 2032 as a pair ofsatellites flying in the samelow Earth orbit in an in-line formation, separated by approximately 100 km.[3] The satellites will precisely map Earth's gravity field by monitoring short-period changes in the distance between them usinglaser interferometry.[4]
NGGM will form part of the MAss Change and Geosciences International Constellation (MAGIC) together withNASA's GRACE-C pair of satellites.[5][6][7] The MAGICsatellite constellation is intended to extend the more than two decades long time series of monthlygravity field models by theGRACE and GRACE-FO missions.[8] If implemented, NGGM will be the first Mission of Opportunity in theFutureEO programme.[9]
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