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_2009-09 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 -1.588435874019e-10 0.000000000000e+00 gfc 2 1 6.855156877495e-12 1.247618303887e-11 gfc 2 2 2.530145714858e-12 1.582788913411e-12 gfc 3 0 3.151435036042e-13 0.000000000000e+00 gfc 3 1 -2.957467757452e-14 -4.072970287640e-14 gfc 3 2 2.130985754240e-14 2.946147339275e-15 gfc 3 3 7.976606032344e-15 -4.645718486478e-16 gfc 4 0 1.288535182656e-11 0.000000000000e+00 gfc 4 1 -1.885860329422e-14 -3.742051645840e-14 gfc 4 2 -4.804147983149e-15 -2.976553643861e-15 gfc 4 3 0.000000000000e+00 0.000000000000e+00 gfc 4 4 0.000000000000e+00 0.000000000000e+00