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_2006-06 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 8.202534035424e-10 0.000000000000e+00 gfc 2 1 -9.310244421714e-12 6.039415633822e-12 gfc 2 2 -9.142586023540e-13 -1.313636353696e-12 gfc 3 0 -6.721541234209e-13 0.000000000000e+00 gfc 3 1 -4.761832563051e-14 2.115151262747e-14 gfc 3 2 2.199164245921e-14 1.469744610176e-14 gfc 3 3 -2.841688310586e-15 4.101347016170e-15 gfc 4 0 1.003051597823e-11 0.000000000000e+00 gfc 4 1 2.882369433184e-14 -1.552155344317e-14 gfc 4 2 1.741404964910e-15 2.479859957031e-15 gfc 4 3 0.000000000000e+00 0.000000000000e+00 gfc 4 4 0.000000000000e+00 0.000000000000e+00