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_2013-05 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 -1.548850728349e-10 0.000000000000e+00 gfc 2 1 -1.776039255767e-11 4.398156507765e-12 gfc 2 2 1.204526849195e-11 -2.641365611561e-12 gfc 3 0 1.870224952577e-12 0.000000000000e+00 gfc 3 1 4.309239070733e-14 2.948009532857e-14 gfc 3 2 -2.894346598241e-14 -3.988179058041e-14 gfc 3 3 1.317515887723e-14 4.586628323147e-14 gfc 4 0 1.281589949813e-11 0.000000000000e+00 gfc 4 1 5.000172350514e-14 -9.896386522914e-15 gfc 4 2 -2.279171762711e-14 5.100696431600e-15 gfc 4 3 0.000000000000e+00 0.000000000000e+00 gfc 4 4 0.000000000000e+00 0.000000000000e+00