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_2007-04 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 7.096538341120e-11 0.000000000000e+00 gfc 2 1 -3.563883590267e-12 -1.881479769711e-11 gfc 2 2 2.738858274287e-13 -1.493040484214e-12 gfc 3 0 -1.265529100122e-13 0.000000000000e+00 gfc 3 1 8.584101932168e-15 2.135823653409e-14 gfc 3 2 -1.790869085597e-14 -3.031341208039e-14 gfc 3 3 -1.601647135496e-15 -2.846019199894e-15 gfc 4 0 1.220557963683e-11 0.000000000000e+00 gfc 4 1 1.068516709753e-14 5.448646325741e-14 gfc 4 2 -5.061865881453e-16 2.829522633039e-15 gfc 4 3 0.000000000000e+00 0.000000000000e+00 gfc 4 4 0.000000000000e+00 0.000000000000e+00