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_2013-07 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 9.203021699400e-11 0.000000000000e+00 gfc 2 1 -5.309879777342e-12 -5.252002736559e-12 gfc 2 2 5.080040082251e-12 6.788635925480e-12 gfc 3 0 -4.140001226717e-13 0.000000000000e+00 gfc 3 1 -4.871689533048e-14 1.561325612418e-15 gfc 3 2 2.367226679594e-14 -3.203741564139e-15 gfc 3 3 -2.739739661925e-14 1.288191009469e-14 gfc 4 0 1.211091456139e-11 0.000000000000e+00 gfc 4 1 1.713901239394e-14 1.229031158133e-14 gfc 4 2 -9.676432945602e-15 -1.281558340808e-14 gfc 4 3 0.000000000000e+00 0.000000000000e+00 gfc 4 4 0.000000000000e+00 0.000000000000e+00