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_2017-05 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 -1.521852521458e-10 0.000000000000e+00 gfc 2 1 -9.223328327921e-12 8.204838271272e-12 gfc 2 2 1.192592892560e-11 -5.572516809800e-12 gfc 3 0 -2.240011829237e-12 0.000000000000e+00 gfc 3 1 -3.814943918403e-14 -1.826585323256e-14 gfc 3 2 4.205184806599e-14 9.921035269566e-15 gfc 3 3 -2.950046523236e-14 -3.974095717689e-14 gfc 4 0 1.277441796260e-11 0.000000000000e+00 gfc 4 1 2.646916770614e-14 -1.951149155670e-14 gfc 4 2 -2.254124203174e-14 1.065130762280e-14 gfc 4 3 0.000000000000e+00 0.000000000000e+00 gfc 4 4 0.000000000000e+00 0.000000000000e+00