Monthly mean of earth tide (IERS2010) for details see http://ifg.tugraz.at/downloads/gravity-field-models/itsg-grace2018 begin_of_head ======================================== modelname model_earthTide_2009-11 product_type gravity_field earth_gravity_constant 3.9860044150e+14 radius 6.3781363000e+06 max_degree 4 norm fully_normalized errors no key L M C S end_of_head ========================================== gfc 0 0 0.000000000000e+00 0.000000000000e+00 gfc 1 0 0.000000000000e+00 0.000000000000e+00 gfc 1 1 0.000000000000e+00 0.000000000000e+00 gfc 2 0 2.371065319944e-10 0.000000000000e+00 gfc 2 1 2.606508138498e-12 1.725886035231e-11 gfc 2 2 -2.647770739161e-12 1.681103647451e-12 gfc 3 0 -1.653684030269e-12 0.000000000000e+00 gfc 3 1 2.853723220524e-14 4.929886634231e-14 gfc 3 2 1.806830705774e-14 2.944699967022e-14 gfc 3 3 -5.544455465674e-15 1.076702279615e-14 gfc 4 0 1.171398613730e-11 0.000000000000e+00 gfc 4 1 -9.948143410455e-15 -4.819746905536e-14 gfc 4 2 5.000433087888e-15 -3.206544831404e-15 gfc 4 3 0.000000000000e+00 0.000000000000e+00 gfc 4 4 0.000000000000e+00 0.000000000000e+00