Page - 77 - in Contributions to GRACE Gravity Field Recovery - Improvements in Dynamic Orbit Integration, Stochastic Modelling of the Antenna Offset Correction, and Co-Estimation of Satellite Orientations

Daily Stokes coefficients Monthly Stokes coefficients Satellite Parameters Inter-group correlations Figure 6.9: Symbolic illustration of the normal equation structure of an ITSG-Grace2016 monthly gravity field solution. Only the upper triangle is stored, as the normal equation matrix is symmetric. The individual blocks are not to scale. 0 20 40 60 80 100 120 Degree 10−5 10−4 10−3 10−2 10−1 100 101 D/O 60 D/O120 Figure 6.10: Degree Amplitude plot for June 2010. The pictured low degree and order field is a by-product of determining the stochastic model of the observables. The high degree and order field is the final product for this month. 6.6 Complete solution 77