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_2008-04 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 4.881857541193e-11 0.000000000000e+00 gfc 2 1 -1.237222529158e-11 -9.876834630573e-12 gfc 2 2 4.390883076905e-12 -6.488941625314e-13 gfc 3 0 1.529838617765e-13 0.000000000000e+00 gfc 3 1 5.983281185654e-14 4.160728331928e-14 gfc 3 2 2.442508932480e-14 -1.802219892640e-14 gfc 3 3 -7.765164099521e-15 1.230269457391e-14 gfc 4 0 1.227321162780e-11 0.000000000000e+00 gfc 4 1 3.452432469540e-14 3.015842836650e-14 gfc 4 2 -8.310430641045e-15 1.263774181269e-15 gfc 4 3 0.000000000000e+00 0.000000000000e+00 gfc 4 4 0.000000000000e+00 0.000000000000e+00