Comparison of Geopotential Recovery Capabilities of Some Future Satellite Missions
The capabilities of presently studied satellite missions to map the Earth’s gravitational potential with unprecedented resolution and accuracy are presented in terms of error spectra on the recovered spherical harmonic coefficients of the classical expansion of the potential function. The analysis is made simpler by considering quasi-circular orbits only and the adopted time-wise approach in the frequency domain is very efficient at providing the covariance analysis results. Applications are made to the old ARISTOTELES-like project and to the STEP, GAMES, GRACE, BRIDGE and MARGOT concepts.
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