# IGRF-1 Coefficients 8 2 1955 1975 g/h n m 1965.0 SV g 1 0 -30339 15.3 g 1 1 -2123 8.7 h 1 1 5758 -2.3 g 2 0 -1654 -24.4 g 2 1 2994 0.3 h 2 1 -2006 -11.8 g 2 2 1567 -1.6 h 2 2 130 -16.7 g 3 0 1297 0.2 g 3 1 -2036 -10.8 h 3 1 -403 4.2 g 3 2 1289 0.7 h 3 2 242 0.7 g 3 3 843 -3.8 h 3 3 -176 -7.7 g 4 0 958 -0.7 g 4 1 805 0.2 h 4 1 149 -0.1 g 4 2 492 -3.0 h 4 2 -280 1.6 g 4 3 -392 -0.1 h 4 3 8 2.9 g 4 4 256 -2.1 h 4 4 -265 -4.2 g 5 0 -223 1.9 g 5 1 357 1.1 h 5 1 16 2.3 g 5 2 246 2.9 h 5 2 125 1.7 g 5 3 -26 0.6 h 5 3 -123 -2.4 g 5 4 -161 0.0 h 5 4 -107 0.8 g 5 5 -51 1.3 h 5 5 77 -0.3 g 6 0 47 -0.1 g 6 1 60 -0.3 h 6 1 -14 -0.9 g 6 2 4 1.1 h 6 2 106 -0.4 g 6 3 -229 1.9 h 6 3 68 2.0 g 6 4 3 -0.4 h 6 4 -32 -1.1 g 6 5 -4 -0.4 h 6 5 -10 0.1 g 6 6 -112 -0.2 h 6 6 -13 0.9 g 7 0 71 -0.5 g 7 1 -54 -0.3 h 7 1 -57 -1.1 g 7 2 0 -0.7 h 7 2 -27 0.3 g 7 3 12 -0.5 h 7 3 -8 0.4 g 7 4 -25 0.3 h 7 4 9 0.2 g 7 5 -9 0.0 h 7 5 23 0.4 g 7 6 13 -0.2 h 7 6 -19 0.2 g 7 7 -2 -0.6 h 7 7 -17 0.3 g 8 0 10 0.1 g 8 1 9 0.4 h 8 1 3 0.1 g 8 2 -3 0.6 h 8 2 -13 -0.2 g 8 3 -12 0.0 h 8 3 5 -0.3 g 8 4 -4 0.0 h 8 4 -17 -0.2 g 8 5 7 -0.1 h 8 5 4 -0.3 g 8 6 -5 0.3 h 8 6 22 -0.4 g 8 7 12 -0.3 h 8 7 -3 -0.3 g 8 8 6 -0.5 h 8 8 -16 -0.3