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_2009-10 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 -1.952051363439e-10 0.000000000000e+00 gfc 2 1 1.101701088399e-11 2.350722706732e-11 gfc 2 2 -9.663775363384e-13 5.882513668895e-12 gfc 3 0 -5.503506610758e-13 0.000000000000e+00 gfc 3 1 1.452360561405e-14 -1.599224983193e-14 gfc 3 2 4.527734735749e-14 2.429768483999e-14 gfc 3 3 7.193256766349e-15 2.281237823078e-14 gfc 4 0 1.298123157174e-11 0.000000000000e+00 gfc 4 1 -3.166887026009e-14 -6.629140388307e-14 gfc 4 2 1.781960023634e-15 -1.114964977767e-14 gfc 4 3 0.000000000000e+00 0.000000000000e+00 gfc 4 4 0.000000000000e+00 0.000000000000e+00