Seppelin T.O.; The Department of Defense World Geodetic System 1972; International Symposium on Problems Related to the Redefinition of North American Geodetic Networks, Fredrickton, New Brunswick, Canada, 1974 (U.S. Department of Commerce, National Technical Information Service) Thanks to Paul Willmott, who sent us the coefficients. product_type gravity_field modelname WGS72 earth_gravity_constant 0.3986005E+15 radius 0.6378135E+07 max_degree 28 errors no key L M C S end_of_head ================================ gfc 0 0 1.0000e+00 0.0000e+00 gfc 2 0 -484.1605e-06 0.0000e-00 gfc 2 2 2.4423e-06 -1.4036e-06 gfc 3 0 9.5958e-07 .0000e+00 gfc 3 1 2.0536e-06 2.6703e-07 gfc 3 2 9.1332e-07 -6.4571e-07 gfc 3 3 7.0512e-07 1.4064e-06 gfc 4 0 5.5199e-07 .0000e+00 gfc 4 1 -5.3136e-07 -4.8052e-07 gfc 4 2 3.4388e-07 6.5123e-07 gfc 4 3 9.8211e-07 -1.9836e-07 gfc 4 4 -1.9235e-07 3.1713e-07 gfc 5 0 6.5875e-08 .0000e+00 gfc 5 1 -1.0369e-07 -1.2799e-07 gfc 5 2 6.5197e-07 -3.1775e-07 gfc 5 3 -4.4619e-07 -2.1152e-07 gfc 5 4 -2.7991e-07 5.9496e-08 gfc 5 5 1.9272e-07 -6.5920e-07 gfc 6 0 -1.7252e-07 .0000e+00 gfc 6 1 -6.7486e-08 2.9811e-08 gfc 6 2 6.1474e-08 -3.5155e-07 gfc 6 3 5.0212e-08 3.7393e-09 gfc 6 4 -7.5211e-08 -4.6796e-07 gfc 6 5 -2.5412e-07 -5.5210e-07 gfc 6 6 7.6049e-09 -2.4418e-07 gfc 7 0 9.7146e-08 .0000e+00 gfc 7 1 3.4753e-07 1.4423e-07 gfc 7 2 3.1681e-07 1.1059e-07 gfc 7 3 2.4913e-07 -2.1009e-07 gfc 7 4 -2.7570e-07 -1.2268e-07 gfc 7 5 1.9085e-08 3.3327e-08 gfc 7 6 -3.5575e-07 1.5818e-07 gfc 7 7 -1.6887e-08 1.3195e-08 gfc 8 0 8.2560e-08 .0000e+00 gfc 8 1 -9.9757e-10 5.7018e-08 gfc 8 2 6.8074e-08 4.7043e-08 gfc 8 3 1.1450e-08 -7.5582e-08 gfc 8 4 -2.4936e-07 5.5992e-08 gfc 8 5 -3.1746e-08 7.9147e-08 gfc 8 6 -6.1954e-08 3.0764e-07 gfc 8 7 6.6357e-08 8.5710e-08 gfc 8 8 -1.2793e-07 1.2274e-07 gfc 9 0 1.7840e-08 .0000e+00 gfc 9 1 6.5413e-08 -5.3925e-08 gfc 9 2 3.2910e-08 -3.6546e-08 gfc 9 3 -1.3955e-07 -6.7466e-08 gfc 9 4 -4.9942e-08 1.2578e-08 gfc 9 5 -3.5556e-08 -5.5552e-08 gfc 9 6 3.9027e-08 2.2378e-07 gfc 9 7 -1.3035e-07 -6.6010e-08 gfc 9 8 1.9970e-07 1.9504e-08 gfc 9 9 -3.5292e-08 1.0228e-07 gfc 10 0 1.3358e-08 .0000e+00 gfc 10 1 1.0632e-07 -1.3418e-07 gfc 10 2 -7.4603e-08 4.6204e-09 gfc 10 3 -2.7857e-08 -1.3778e-07 gfc 10 4 -7.1713e-08 -4.5058e-08 gfc 10 5 -5.8434e-08 -4.5607e-08 gfc 10 6 -5.6938e-08 -8.3229e-08 gfc 10 7 1.4030e-08 -6.4047e-09 gfc 10 8 4.3012e-08 -1.0040e-07 gfc 10 9 1.2639e-07 -4.0383e-08 gfc 10 10 1.0399e-07 -3.1799e-08 gfc 11 0 -3.4162e-08 .0000e+00 gfc 11 1 8.2109e-08 4.1002e-08 gfc 11 2 4.6510e-09 -9.7585e-08 gfc 11 3 -2.4333e-08 -1.2635e-07 gfc 11 4 -1.1286e-08 -6.6022e-08 gfc 11 5 3.7987e-08 4.1405e-08 gfc 11 6 5.2146e-09 4.7955e-08 gfc 11 7 5.0125e-08 -1.1497e-07 gfc 11 8 -1.0147e-09 -1.7166e-08 gfc 11 9 -5.2965e-08 3.3358e-08 gfc 11 10 -5.1343e-08 -7.1768e-09 gfc 11 11 6.3816e-08 -5.7312e-08 gfc 12 0 7.5983e-08 .0000e+00 gfc 12 1 -7.2532e-08 -2.0008e-08 gfc 12 2 -1.8077e-08 -4.9252e-08 gfc 12 3 5.3933e-08 3.4048e-09 gfc 12 4 -1.2443e-07 -2.3379e-08 gfc 12 5 3.5740e-09 -1.1116e-08 gfc 12 6 2.6866e-08 3.8054e-08 gfc 12 7 -1.8755e-08 1.3562e-08 gfc 12 8 -2.9165e-08 1.9974e-08 gfc 12 9 3.1685e-08 2.4617e-08 gfc 12 10 5.7543e-09 3.3990e-08 gfc 12 11 1.1843e-08 -1.0771e-09 gfc 12 12 3.2587e-09 -9.5570e-09 gfc 13 0 2.4191e-08 .0000e+00 gfc 13 1 -9.9155e-08 -5.4193e-08 gfc 13 2 6.7795e-08 -5.5999e-08 gfc 13 3 -4.2816e-08 7.2793e-08 gfc 13 4 -3.2273e-08 -2.5739e-09 gfc 13 5 3.9148e-08 5.5624e-08 gfc 13 6 -4.8351e-08 -1.7874e-08 gfc 13 7 -2.9939e-09 -2.8320e-08 gfc 13 8 3.1706e-10 -1.5996e-08 gfc 13 9 2.6889e-08 4.9818e-08 gfc 13 10 4.8348e-08 -5.2480e-08 gfc 13 11 -3.5111e-08 -1.3065e-08 gfc 13 12 -3.5372e-08 8.7711e-08 gfc 13 13 -6.0788e-08 6.9166e-08 gfc 14 0 -5.0227e-08 .0000e+00 gfc 14 1 -7.7991e-09 -1.0353e-08 gfc 14 2 -1.6508e-08 6.9260e-08 gfc 14 3 3.9199e-08 3.9725e-08 gfc 14 4 6.6630e-08 -3.5749e-08 gfc 14 5 6.5693e-08 -3.0207e-08 gfc 14 6 -5.5508e-08 1.2367e-08 gfc 14 7 4.7669e-08 -1.9520e-08 gfc 14 8 -3.1035e-08 -1.3614e-08 gfc 14 9 3.3581e-08 -4.3675e-09 gfc 14 10 2.7246e-08 5.8288e-09 gfc 14 11 2.0092e-08 -3.1315e-08 gfc 14 12 1.0487e-08 -2.8332e-08 gfc 14 13 3.1407e-08 4.7724e-08 gfc 14 14 -4.6584e-08 -2.2086e-09 gfc 15 0 1.2988e-08 .0000e+00 gfc 15 1 1.1640e-08 3.8398e-08 gfc 15 2 2.9332e-08 -6.9706e-08 gfc 15 3 9.3687e-08 6.5000e-08 gfc 15 4 -1.1640e-08 5.3889e-09 gfc 15 5 9.9998e-09 -3.3249e-08 gfc 15 6 6.6211e-08 -8.6648e-09 gfc 15 7 7.6847e-08 2.3757e-08 gfc 15 8 -8.1064e-08 4.2399e-08 gfc 15 9 2.5492e-08 3.3044e-08 gfc 15 10 -5.5705e-09 5.0325e-09 gfc 15 11 -1.0492e-08 -3.0255e-10 gfc 15 12 -1.3375e-08 2.1305e-08 gfc 15 13 -2.9818e-08 -3.9075e-09 gfc 15 14 6.7330e-09 -2.6026e-08 gfc 15 15 -1.8470e-08 -7.9522e-09 gfc 16 0 -7.6947e-11 .0000e+00 gfc 16 1 2.1962e-08 4.7517e-08 gfc 16 2 -3.9571e-08 -7.5497e-08 gfc 16 3 -3.9054e-08 -2.4415e-08 gfc 16 4 -4.6439e-09 8.5202e-08 gfc 16 5 -3.7066e-08 -1.1001e-08 gfc 16 6 8.6868e-08 -6.8633e-09 gfc 16 7 -2.5481e-09 1.0341e-08 gfc 16 8 -7.0672e-09 7.8201e-09 gfc 16 9 -1.3154e-08 -3.2756e-08 gfc 16 10 -2.7555e-08 1.0305e-08 gfc 16 11 3.7417e-08 -1.8675e-08 gfc 16 12 9.7277e-09 -1.2750e-10 gfc 16 13 1.3684e-08 -5.6486e-10 gfc 16 14 -3.9567e-08 -5.7359e-08 gfc 16 15 -2.3275e-08 -2.5174e-08 gfc 16 16 -4.5006e-08 4.9143e-08 gfc 17 0 1.3203e-08 .0000e+00 gfc 17 1 3.2655e-09 1.5276e-08 gfc 17 2 5.9858e-08 1.0752e-07 gfc 17 3 -1.0282e-08 -4.2125e-09 gfc 17 4 1.0263e-08 2.8670e-08 gfc 17 5 -2.6507e-08 5.4946e-08 gfc 17 6 -3.8764e-08 -7.6733e-08 gfc 17 7 -1.1658e-08 2.0140e-08 gfc 17 8 1.0828e-07 1.4745e-08 gfc 17 9 1.8054e-08 -3.3537e-08 gfc 17 10 -1.3807e-08 2.8189e-08 gfc 17 11 -3.3831e-08 -1.0742e-08 gfc 17 12 -3.6705e-10 1.3719e-08 gfc 17 13 1.8608e-08 1.9202e-08 gfc 17 14 -2.0940e-08 1.7429e-08 gfc 17 15 8.1761e-09 1.4438e-08 gfc 17 16 -2.9291e-08 -3.1429e-08 gfc 17 17 -3.0775e-08 -1.1507e-08 gfc 18 0 1.4453e-08 .0000e+00 gfc 18 1 5.5768e-09 -4.0951e-08 gfc 18 2 3.3156e-08 1.3530e-07 gfc 18 3 1.9490e-08 5.3242e-09 gfc 18 4 9.5615e-08 -8.7016e-08 gfc 18 5 2.9282e-08 9.2623e-09 gfc 18 6 -1.1755e-08 -3.3308e-08 gfc 18 7 -9.2163e-09 1.3905e-08 gfc 18 8 5.1459e-08 8.8053e-09 gfc 18 9 -1.0233e-08 4.2483e-08 gfc 18 10 -1.4379e-08 3.1491e-08 gfc 18 11 -1.5131e-08 1.1159e-08 gfc 18 12 -2.9604e-08 -1.2519e-08 gfc 18 13 -9.1263e-09 -3.3993e-08 gfc 18 14 1.7239e-08 1.6375e-08 gfc 18 15 -4.8294e-08 -3.8156e-08 gfc 18 16 1.4131e-08 -7.4961e-08 gfc 18 17 -1.5546e-08 -3.6413e-09 gfc 18 18 5.7639e-09 -2.3782e-08 gfc 19 0 -4.5912e-09 .0000e+00 gfc 19 1 -2.7517e-08 1.2270e-08 gfc 19 2 -1.3707e-07 -5.2510e-08 gfc 19 3 6.8808e-08 -1.0021e-08 gfc 19 4 -2.2821e-08 -5.1018e-09 gfc 19 5 -1.0511e-07 -5.5411e-08 gfc 19 6 -5.5532e-09 3.8389e-08 gfc 19 7 1.1381e-07 -1.2030e-08 gfc 19 8 -1.0652e-08 -3.9425e-08 gfc 19 9 -2.8901e-08 -1.2721e-08 gfc 19 10 -8.4536e-09 2.5885e-08 gfc 19 11 -8.2383e-09 5.2779e-08 gfc 19 12 4.2617e-08 1.6166e-08 gfc 19 13 -1.3537e-09 -3.1585e-08 gfc 19 14 -1.8602e-09 -1.8572e-08 gfc 19 15 -1.7404e-08 -2.1016e-08 gfc 19 16 -8.9367e-09 1.0853e-07 gfc 19 17 1.9473e-08 -4.1683e-08 gfc 19 18 3.3974e-08 -1.8368e-08 gfc 19 19 -2.2049e-08 1.8343e-08 gfc 20 0 -9.9307e-10 .0000e+00 gfc 20 12 1.0508e-09 1.8632e-08 gfc 20 13 2.0832e-08 1.5066e-08 gfc 20 14 9.5462e-09 -1.2478e-08 gfc 20 15 -2.6067e-10 2.3891e-08 gfc 20 16 -1.5723e-08 2.3573e-09 gfc 21 0 2.0738e-08 .0000e+00 gfc 21 12 2.6349e-08 3.6763e-08 gfc 21 13 -1.1370e-08 1.3246e-08 gfc 21 14 2.1941e-08 1.0342e-08 gfc 21 15 3.8989e-09 -1.2867e-09 gfc 21 16 -1.1395e-08 -9.3947e-08 gfc 22 0 6.1398e-09 .0000e+00 gfc 22 12 1.3543e-08 -1.3959e-08 gfc 22 13 -1.8510e-08 2.1614e-08 gfc 22 14 -1.1666e-08 -1.6035e-08 gfc 22 15 1.2794e-09 1.9067e-08 gfc 22 16 -1.6224e-08 2.4069e-08 gfc 23 0 -3.3716e-08 .0000e+00 gfc 23 12 -2.3222e-08 -5.0648e-08 gfc 23 13 -2.4749e-08 -8.4939e-09 gfc 23 14 1.4955e-08 2.7781e-09 gfc 23 15 -3.9865e-09 2.7061e-09 gfc 24 0 -3.2192e-09 .0000e+00 gfc 24 12 -4.4914e-08 -5.3798e-09 gfc 24 13 6.5972e-09 5.1992e-09 gfc 24 14 -2.3309e-08 -1.0687e-08 gfc 24 15 2.6447e-09 -5.6270e-08 gfc 25 12 -6.4016e-08 1.5540e-08 gfc 25 13 -6.3133e-09 -1.8410e-08 gfc 25 14 -2.5977e-08 3.2593e-09 gfc 25 15 7.5690e-09 1.2388e-08 gfc 25 16 -3.8241e-09 -4.3413e-09 gfc 26 13 3.6186e-09 -1.6449e-08 gfc 26 14 1.1985e-08 2.9945e-08 gfc 26 15 2.3192e-08 5.2143e-09 gfc 26 16 5.8883e-08 -5.5879e-08 gfc 27 13 -3.3638e-08 -1.0124e-08 gfc 27 14 1.5281e-08 7.8298e-09 gfc 27 15 3.0547e-08 -7.0922e-09 gfc 27 27 3.0000e-09 9.9999e-10 gfc 28 27 -2.2000e-08 8.9999e-09