Koch, K. R., Morrison, F.: A Simple Layer Model of the Geopotential from a Combination of Satellite and Gravity Data. Journal of Geophysical Research, Vol. 75, No. 8, 1483-1492 Satellite Solution from Baker-Nunn Camera Observations product_type gravity_field modelname KOCH70 earth_gravity_constant 3.986013E+14 radius 6378155.E+00 max_degree 8 errors no key L M C S end_of_head ============================= gfc 0 0 1.0000e+00 0. gfc 2 0 -484.1394e-06 0. gfc 3 0 0.8721e-06 0. gfc 4 0 0.4922e-06 0. gfc 5 0 0.1388e-06 0. gfc 6 0 -0.0110e-06 0. gfc 7 0 -0.0444e-06 0. gfc 8 0 0.0125e-06 0. gfc 2 1 -0.1755e-06 0.0442e-06 gfc 3 1 1.5773e-06 -0.1050e-06 gfc 4 1 -0.6277e-06 -0.5506e-06 gfc 5 1 -0.2165e-06 -0.0061e-06 gfc 6 1 -0.4374e-06 0.1452e-06 gfc 7 1 -0.1261e-06 0.0152e-06 gfc 8 1 -0.0659e-06 -0.0052e-06 gfc 2 2 2.4839e-06 -1.1957e-06 gfc 3 2 0.9314e-06 -0.9212e-06 gfc 4 2 0.3440e-06 0.5742e-06 gfc 5 2 0.6890e-06 -0.6374e-06 gfc 6 2 0.0734e-06 -0.0330e-06 gfc 7 2 -0.2101e-06 0.3460e-06 gfc 8 2 0.0775e-06 -0.0130e-06 gfc 3 3 0.4038e-06 2.0061e-06 gfc 4 3 0.9373e-06 -0.3881e-06 gfc 5 3 0.0978e-06 -0.1458e-06 gfc 6 3 0.3516e-06 -0.7260e-06 gfc 7 3 0.0242e-06 -0.0368e-06 gfc 8 3 -0.0897e-06 0.1834e-06 gfc 4 4 -0.5497e-06 0.6612e-06 gfc 5 4 -0.0506e-06 -0.9289e-06 gfc 6 4 -0.2659e-06 0.0075e-06 gfc 7 4 -0.2714e-06 0.5514e-06 gfc 8 4 -0.1165e-06 -0.0142e-06 gfc 5 5 -0.0672e-06 -0.6113e-06 gfc 6 5 0.0256e-06 -0.5087e-06 gfc 7 5 0.2101e-06 0.0801e-06 gfc 8 5 0.1819e-06 0.2730e-06 gfc 6 6 -0.0061e-06 -0.5382e-06 gfc 7 6 -0.0621e-06 -0.6481e-06 gfc 8 6 -0.0171e-06 -0.0139e-06 gfc 7 7 0.0810e-06 -0.3365e-06 gfc 8 7 0.0147e-06 -0.3657e-06 gfc 8 8 0.0929e-06 0.1077e-06