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Table 3 12th Generation International Geomagnetic Reference Field

From: International Geomagnetic Reference Field: the 12th generation

  Degree Order IGRF IGRF IGRF IGRF IGRF IGRF IGRF IGRF IGRF DGRF DGRF DGRF DGRF DGRF DGRF DGRF DGRF DGRF DGRF DGRF DGRF DGRF DGRF IGRF SV
g/h n m 1900.0 1905.0 1910.0 1915.0 1920.0 1925.0 1930.0 1935.0 1940.0 1945.0 1950.0 1955.0 1960.0 1965.0 1970.0 1975.0 1980.0 1985.0 1990.0 1995.0 2000.0 2005.0 2010.0 2015 2015-20
g 1 0 -31543 -31464 -31354 -31212 -31060 -30926 -30805 -30715 -30654 -30594 -30554 -30500 -30421 -30334 -30220 -30100 -29992 -29873 -29775 -29692 -29619.4 -29554.63 -29496.57 -29442.0 10.3
g 1 1 -2298 -2298 -2297 -2306 -2317 -2318 -2316 -2306 -2292 -2285 -2250 -2215 -2169 -2119 -2068 -2013 -1956 -1905 -1848 -1784 -1728.2 -1669.05 -1586.42 -1501.0 18.1
h 1 1 5922 5909 5898 5875 5845 5817 5808 5812 5821 5810 5815 5820 5791 5776 5737 5675 5604 5500 5406 5306 5186.1 5077.99 4944.26 4797.1 -26.6
g 2 0 -677 -728 -769 -802 -839 -893 -951 -1018 -1106 -1244 -1341 -1440 -1555 -1662 -1781 -1902 -1997 -2072 -2131 -2200 -2267.7 -2337.24 -2396.06 -2445.1 -8.7
g 2 1 2905 2928 2948 2956 2959 2969 2980 2984 2981 2990 2998 3003 3002 2997 3000 3010 3027 3044 3059 3070 3068.4 3047.69 3026.34 3012.9 -3.3
h 2 1 -1061 -1086 -1128 -1191 -1259 -1334 -1424 -1520 -1614 -1702 -1810 -1898 -1967 -2016 -2047 -2067 -2129 -2197 -2279 -2366 -2481.6 -2594.50 -2708.54 -2845.6 -27.4
g 2 2 924 1041 1176 1309 1407 1471 1517 1550 1566 1578 1576 1581 1590 1594 1611 1632 1663 1687 1686 1681 1670.9 1657.76 1668.17 1676.7 2.1
h 2 2 1121 1065 1000 917 823 728 644 586 528 477 381 291 206 114 25 -68 -200 -306 -373 -413 -458.0 -515.43 -575.73 -641.9 -14.1
g 3 0 1022 1037 1058 1084 1111 1140 1172 1206 1240 1282 1297 1302 1302 1297 1287 1276 1281 1296 1314 1335 1339.6 1336.30 1339.85 1350.7 3.4
g 3 1 -1469 -1494 -1524 -1559 -1600 -1645 -1692 -1740 -1790 -1834 -1889 -1944 -1992 -2038 -2091 -2144 -2180 -2208 -2239 -2267 -2288.0 -2305.83 -2326.54 -2352.3 -5.5
h 3 1 -330 -357 -389 -421 -445 -462 -480 -494 -499 -499 -476 -462 -414 -404 -366 -333 -336 -310 -284 -262 -227.6 -198.86 -160.40 -115.3 8.2
g 3 2 1256 1239 1223 1212 1205 1202 1205 1215 1232 1255 1274 1288 1289 1292 1278 1260 1251 1247 1248 1249 1252.1 1246.39 1232.10 1225.6 -0.7
h 3 2 3 34 62 84 103 119 133 146 163 186 206 216 224 240 251 262 271 284 293 302 293.4 269.72 251.75 244.9 -0.4
g 3 3 572 635 705 778 839 881 907 918 916 913 896 882 878 856 838 830 833 829 802 759 714.5 672.51 633.73 582.0 -10.1
h 3 3 523 480 425 360 293 229 166 101 43 -11 -46 -83 -130 -165 -196 -223 -252 -297 -352 -427 -491.1 -524.72 -537.03 -538.4 1.8
g 4 0 876 880 884 887 889 891 896 903 914 944 954 958 957 957 952 946 938 936 939 940 932.3 920.55 912.66 907.6 -0.7
g 4 1 628 643 660 678 695 711 727 744 762 776 792 796 800 804 800 791 782 780 780 780 786.8 797.96 808.97 813.7 0.2
h 4 1 195 203 211 218 220 216 205 188 169 144 136 133 135 148 167 191 212 232 247 262 272.6 282.07 286.48 283.3 -1.3
g 4 2 660 653 644 631 616 601 584 565 550 544 528 510 504 479 461 438 398 361 325 290 250.0 210.65 166.58 120.4 -9.1
h 4 2 -69 -77 -90 -109 -134 -163 -195 -226 -252 -276 -278 -274 -278 -269 -266 -265 -257 -249 -240 -236 -231.9 -225.23 -211.03 -188.7 5.3
g 4 3 -361 -380 -400 -416 -424 -426 -422 -415 -405 -421 -408 -397 -394 -390 -395 -405 -419 -424 -423 -418 -403.0 -379.86 -356.83 -334.9 4.1
h 4 3 -210 -201 -189 -173 -153 -130 -109 -90 -72 -55 -37 -23 3 13 26 39 53 69 84 97 119.8 145.15 164.46 180.9 2.9
g 4 4 134 146 160 178 199 217 234 249 265 304 303 290 269 252 234 216 199 170 141 122 111.3 100.00 89.40 70.4 -4.3
h 4 4 -75 -65 -55 -51 -57 -70 -90 -114 -141 -178 -210 -230 -255 -269 -279 -288 -297 -297 -299 -306 -303.8 -305.36 -309.72 -329.5 -5.2
g 5 0 -184 -192 -201 -211 -221 -230 -237 -241 -241 -253 -240 -229 -222 -219 -216 -218 -218 -214 -214 -214 -218.8 -227.00 -230.87 -232.6 -0.2
g 5 1 328 328 327 327 326 326 327 329 334 346 349 360 362 358 359 356 357 355 353 352 351.4 354.41 357.29 360.1 0.5
h 5 1 -210 -193 -172 -148 -122 -96 -72 -51 -33 -12 3 15 16 19 26 31 46 47 46 46 43.8 42.72 44.58 47.3 0.6
g 5 2 264 259 253 245 236 226 218 211 208 194 211 230 242 254 262 264 261 253 245 235 222.3 208.95 200.26 192.4 -1.3
h 5 2 53 56 57 58 58 58 60 64 71 95 103 110 125 128 139 148 150 150 154 165 171.9 180.25 189.01 197.0 1.7
g 5 3 5 -1 -9 -16 -23 -28 -32 -33 -33 -20 -20 -23 -26 -31 -42 -59 -74 -93 -109 -118 -130.4 -136.54 -141.05 -140.9 -0.1
h 5 3 -33 -32 -33 -34 -38 -44 -53 -64 -75 -67 -87 -98 -117 -126 -139 -152 -151 -154 -153 -143 -133.1 -123.45 -118.06 -119.3 -1.2
g 5 4 -86 -93 -102 -111 -119 -125 -131 -136 -141 -142 -147 -152 -156 -157 -160 -159 -162 -164 -165 -166 -168.6 -168.05 -163.17 -157.5 1.4
h 5 4 -124 -125 -126 -126 -125 -122 -118 -115 -113 -119 -122 -121 -114 -97 -91 -83 -78 -75 -69 -55 -39.3 -19.57 -0.01 16.0 3.4
g 5 5 -16 -26 -38 -51 -62 -69 -74 -76 -76 -82 -76 -69 -63 -62 -56 -49 -48 -46 -36 -17 -12.9 -13.55 -8.03 4.1 3.9
h 5 5 3 11 21 32 43 51 58 64 69 82 80 78 81 81 83 88 92 95 97 107 106.3 103.85 101.04 100.2 0.0
g 6 0 63 62 62 61 61 61 60 59 57 59 54 47 46 45 43 45 48 53 61 68 72.3 73.60 72.78 70.0 -0.3
g 6 1 61 60 58 57 55 54 53 53 54 57 57 57 58 61 64 66 66 65 65 67 68.2 69.56 68.69 67.7 -0.1
h 6 1 -9 -7 -5 -2 0 3 4 4 4 6 -1 -9 -10 -11 -12 -13 -15 -16 -16 -17 -17.4 -20.33 -20.90 -20.8 0.0
g 6 2 -11 -11 -11 -10 -10 -9 -9 -8 -7 6 4 3 1 8 15 28 42 51 59 68 74.2 76.74 75.92 72.7 -0.7
h 6 2 83 86 89 93 96 99 102 104 105 100 99 96 99 100 100 99 93 88 82 72 63.7 54.75 44.18 33.2 -2.1
g 6 3 -217 -221 -224 -228 -233 -238 -242 -246 -249 -246 -247 -247 -237 -228 -212 -198 -192 -185 -178 -170 -160.9 -151.34 -141.40 -129.9 2.1
h 6 3 2 4 5 8 11 14 19 25 33 16 33 48 60 68 72 75 71 69 69 67 65.1 63.63 61.54 58.9 -0.7
g 6 4 -58 -57 -54 -51 -46 -40 -32 -25 -18 -25 -16 -8 -1 4 2 1 4 4 3 -1 -5.9 -14.58 -22.83 -28.9 -1.2
h 6 4 -35 -32 -29 -26 -22 -18 -16 -15 -15 -9 -12 -16 -20 -32 -37 -41 -43 -48 -52 -58 -61.2 -63.53 -66.26 -66.7 0.2
g 6 5 59 57 54 49 44 39 32 25 18 21 12 7 -2 1 3 6 14 16 18 19 16.9 14.58 13.10 13.2 0.3
h 6 5 36 32 28 23 18 13 8 4 0 -16 -12 -12 -11 -8 -6 -4 -2 -1 1 1 0.7 0.24 3.02 7.3 0.9
g 6 6 -90 -92 -95 -98 -101 -103 -104 -106 -107 -104 -105 -107 -113 -111 -112 -111 -108 -102 -96 -93 -90.4 -86.36 -78.09 -70.9 1.6
h 6 6 -69 -67 -65 -62 -57 -52 -46 -40 -33 -39 -30 -24 -17 -7 1 11 17 21 24 36 43.8 50.94 55.40 62.6 1.0
g 7 0 70 70 71 72 73 73 74 74 74 70 65 65 67 75 72 71 72 74 77 77 79.0 79.88 80.44 81.6 0.3
g 7 1 -55 -54 -54 -54 -54 -54 -54 -53 -53 -40 -55 -56 -56 -57 -57 -56 -59 -62 -64 -72 -74.0 -74.46 -75.00 -76.1 -0.2
h 7 1 -45 -46 -47 -48 -49 -50 -51 -52 -52 -45 -35 -50 -55 -61 -70 -77 -82 -83 -80 -69 -64.6 -61.14 -57.80 -54.1 0.8
g 7 2 0 0 1 2 2 3 4 4 4 0 2 2 5 4 1 1 2 3 2 1 0.0 -1.65 -4.55 -6.8 -0.5
h 7 2 -13 -14 -14 -14 -14 -14 -15 -17 -18 -18 -17 -24 -28 -27 -27 -26 -27 -27 -26 -25 -24.2 -22.57 -21.20 -19.5 0.4
g 7 3 34 33 32 31 29 27 25 23 20 0 1 10 15 13 14 16 21 24 26 28 33.3 38.73 45.24 51.8 1.3
h 7 3 -10 -11 -12 -12 -13 -14 -14 -14 -14 2 0 -4 -6 -2 -4 -5 -5 -2 0 4 6.2 6.82 6.54 5.7 -0.2
g 7 4 -41 -41 -40 -38 -37 -35 -34 -33 -31 -29 -40 -32 -32 -26 -22 -14 -12 -6 -1 5 9.1 12.30 14.00 15.0 0.1
h 7 4 -1 0 1 2 4 5 6 7 7 6 10 8 7 6 8 10 16 20 21 24 24.0 25.35 24.96 24.4 -0.3
g 7 5 -21 -20 -19 -18 -16 -14 -12 -11 -9 -10 -7 -11 -7 -6 -2 0 1 4 5 4 6.9 9.37 10.46 9.4 -0.6
h 7 5 28 28 28 28 28 29 29 29 29 28 36 28 23 26 23 22 18 17 17 17 14.8 10.93 7.03 3.4 -0.6
g 7 6 18 18 18 19 19 19 18 18 17 15 5 9 17 13 13 12 11 10 9 8 7.3 5.42 1.64 -2.8 -0.8
h 7 6 -12 -12 -13 -15 -16 -17 -18 -19 -20 -17 -18 -20 -18 -23 -23 -23 -23 -23 -23 -24 -25.4 -26.32 -27.61 -27.4 0.1
g 7 7 6 6 6 6 6 6 6 6 5 29 19 18 8 1 -2 -5 -2 0 0 -2 -1.2 1.94 4.92 6.8 0.2
h 7 7 -22 -22 -22 -22 -22 -21 -20 -19 -19 -22 -16 -18 -17 -12 -11 -12 -10 -7 -4 -6 -5.8 -4.64 -3.28 -2.2 -0.2
g 8 0 11 11 11 11 11 11 11 11 11 13 22 11 15 13 14 14 18 21 23 25 24.4 24.80 24.41 24.2 0.2
g 8 1 8 8 8 8 7 7 7 7 7 7 15 9 6 5 6 6 6 6 5 6 6.6 7.62 8.21 8.8 0.0
h 8 1 8 8 8 8 8 8 8 8 8 12 5 10 11 7 7 6 7 8 10 11 11.9 11.20 10.84 10.1 -0.3
g 8 2 -4 -4 -4 -4 -3 -3 -3 -3 -3 -8 -4 -6 -4 -4 -2 -1 0 0 -1 -6 -9.2 -11.73 -14.50 -16.9 -0.6
h 8 2 -14 -15 -15 -15 -15 -15 -15 -15 -14 -21 -22 -15 -14 -12 -15 -16 -18 -19 -19 -21 -21.5 -20.88 -20.03 -18.3 0.3
g 8 3 -9 -9 -9 -9 -9 -9 -9 -9 -10 -5 -1 -14 -11 -14 -13 -12 -11 -11 -10 -9 -7.9 -6.88 -5.59 -3.2 0.5
h 8 3 7 7 6 6 6 6 5 5 5 -12 0 5 7 9 6 4 4 5 6 8 8.5 9.83 11.83 13.3 0.1
g 8 4 1 1 1 2 2 2 2 1 1 9 11 6 2 0 -3 -8 -7 -9 -12 -14 -16.6 -18.11 -19.34 -20.6 -0.2
h 8 4 -13 -13 -13 -13 -14 -14 -14 -15 -15 -7 -21 -23 -18 -16 -17 -19 -22 -23 -22 -23 -21.5 -19.71 -17.41 -14.6 0.5
g 8 5 2 2 2 3 4 4 5 6 6 7 15 10 10 8 5 4 4 4 3 9 9.1 10.17 11.61 13.4 0.4
h 8 5 5 5 5 5 5 5 5 5 5 2 -8 3 4 4 6 6 9 11 12 15 15.5 16.22 16.71 16.2 -0.2
g 8 6 -9 -8 -8 -8 -7 -7 -6 -6 -5 -10 -13 -7 -5 -1 0 0 3 4 4 6 7.0 9.36 10.85 11.7 0.1
h 8 6 16 16 16 16 17 17 18 18 19 18 17 23 23 24 21 18 16 14 12 11 8.9 7.61 6.96 5.7 -0.3
g 8 7 5 5 5 6 6 7 8 8 9 7 5 6 10 11 11 10 6 4 2 -5 -7.9 -11.25 -14.05 -15.9 -0.4
h 8 7 -5 -5 -5 -5 -5 -5 -5 -5 -5 3 -4 -4 1 -3 -6 -10 -13 -15 -16 -16 -14.9 -12.76 -10.74 -9.1 0.3
g 8 8 8 8 8 8 8 8 8 7 7 2 -1 9 8 4 3 1 -1 -4 -6 -7 -7.0 -4.87 -3.54 -2.0 0.3
h 8 8 -18 -18 -18 -18 -19 -19 -19 -19 -19 -11 -17 -13 -20 -17 -16 -17 -15 -11 -10 -4 -2.1 -0.06 1.64 2.1 0.0
g 9 0 8 8 8 8 8 8 8 8 8 5 3 4 4 8 8 7 5 5 4 4 5.0 5.58 5.50 5.4 -
g 9 1 10 10 10 10 10 10 10 10 10 -21 -7 9 6 10 10 10 10 10 9 9 9.4 9.76 9.45 8.8 -
h 9 1 -20 -20 -20 -20 -20 -20 -20 -20 -21 -27 -24 -11 -18 -22 -21 -21 -21 -21 -20 -20 -19.7 -20.11 -20.54 -21.6 -
g 9 2 1 1 1 1 1 1 1 1 1 1 -1 -4 0 2 2 2 1 1 1 3 3.0 3.58 3.45 3.1 -
h 9 2 14 14 14 14 14 14 14 15 15 17 19 12 12 15 16 16 16 15 15 15 13.4 12.69 11.51 10.8 -
g 9 3 -11 -11 -11 -11 -11 -11 -12 -12 -12 -11 -25 -5 -9 -13 -12 -12 -12 -12 -12 -10 -8.4 -6.94 -5.27 -3.3 -
h 9 3 5 5 5 5 5 5 5 5 5 29 12 7 2 7 6 7 9 9 11 12 12.5 12.67 12.75 11.8 -
g 9 4 12 12 12 12 12 12 12 11 11 3 10 2 1 10 10 10 9 9 9 8 6.3 5.01 3.13 0.7 -
h 9 4 -3 -3 -3 -3 -3 -3 -3 -3 -3 -9 2 6 0 -4 -4 -4 -5 -6 -7 -6 -6.2 -6.72 -7.14 -6.8 -
g 9 5 1 1 1 1 1 1 1 1 1 16 5 4 4 -1 -1 -1 -3 -3 -4 -8 -8.9 -10.76 -12.38 -13.3 -
h 9 5 -2 -2 -2 -2 -2 -2 -2 -3 -3 4 2 -2 -3 -5 -5 -5 -6 -6 -7 -8 -8.4 -8.16 -7.42 -6.9 -
g 9 6 -2 -2 -2 -2 -2 -2 -2 -2 -2 -3 -5 1 -1 -1 0 -1 -1 -1 -2 -1 -1.5 -1.25 -0.76 -0.1 -
h 9 6 8 8 8 8 9 9 9 9 9 9 8 10 9 10 10 10 9 9 9 8 8.4 8.10 7.97 7.8 -
g 9 7 2 2 2 2 2 2 3 3 3 -4 -2 2 -2 5 3 4 7 7 7 10 9.3 8.76 8.43 8.7 -
h 9 7 10 10 10 10 10 10 10 11 11 6 8 7 8 10 11 11 10 9 8 5 3.8 2.92 2.14 1.0 -
g 9 8 -1 0 0 0 0 0 0 0 1 -3 3 2 3 1 1 1 2 1 1 -2 -4.3 -6.66 -8.42 -9.1 -
h 9 8 -2 -2 -2 -2 -2 -2 -2 -2 -2 1 -11 -6 0 -4 -2 -3 -6 -7 -7 -8 -8.2 -7.73 -6.08 -4.0 -
g 9 9 -1 -1 -1 -1 -1 -1 -2 -2 -2 -4 8 5 -1 -2 -1 -2 -5 -5 -6 -8 -8.2 -9.22 -10.08 -10.5 -
h 9 9 2 2 2 2 2 2 2 2 2 8 -7 5 5 1 1 1 2 2 2 3 4.8 6.01 7.01 8.4 -
g 10 0 -3 -3 -3 -3 -3 -3 -3 -3 -3 -3 -8 -3 1 -2 -3 -3 -4 -4 -3 -3 -2.6 -2.17 -1.94 -1.9 -
g 10 1 -4 -4 -4 -4 -4 -4 -4 -4 -4 11 4 -5 -3 -3 -3 -3 -4 -4 -4 -6 -6.0 -6.12 -6.24 -6.3 -
h 10 1 2 2 2 2 2 2 2 2 2 5 13 -4 4 2 1 1 1 1 2 1 1.7 2.19 2.73 3.2 -
g 10 2 2 2 2 2 2 2 2 2 2 1 -1 -1 4 2 2 2 2 3 2 2 1.7 1.42 0.89 0.1 -
h 10 2 1 1 1 1 1 1 1 1 1 1 -2 0 1 1 1 1 0 0 1 0 0.0 0.10 -0.10 -0.4 -
g 10 3 -5 -5 -5 -5 -5 -5 -5 -5 -5 2 13 2 0 -5 -5 -5 -5 -5 -5 -4 -3.1 -2.35 -1.07 0.5 -
h 10 3 2 2 2 2 2 2 2 2 2 -20 -10 -8 0 2 3 3 3 3 3 4 4.0 4.46 4.71 4.6 -
g 10 4 -2 -2 -2 -2 -2 -2 -2 -2 -2 -5 -4 -3 -1 -2 -1 -2 -2 -2 -2 -1 -0.5 -0.15 -0.16 -0.5 -
h 10 4 6 6 6 6 6 6 6 6 6 -1 2 -2 2 6 4 4 6 6 6 5 4.9 4.76 4.44 4.4 -
g 10 5 6 6 6 6 6 6 6 6 6 -1 4 7 4 4 6 5 5 5 4 4 3.7 3.06 2.45 1.8 -
h 10 5 -4 -4 -4 -4 -4 -4 -4 -4 -4 -6 -3 -4 -5 -4 -4 -4 -4 -4 -4 -5 -5.9 -6.58 -7.22 -7.9 -
g 10 6 4 4 4 4 4 4 4 4 4 8 12 4 6 4 4 4 3 3 3 2 1.0 0.29 -0.33 -0.7 -
h 10 6 0 0 0 0 0 0 0 0 0 6 6 1 1 0 0 -1 0 0 0 -1 -1.2 -1.01 -0.96 -0.6 -
g 10 7 0 0 0 0 0 0 0 0 0 -1 3 -2 1 0 1 1 1 1 1 2 2.0 2.06 2.13 2.1 -
h 10 7 -2 -2 -2 -2 -2 -2 -2 -1 -1 -4 -3 -3 -1 -2 -1 -1 -1 -1 -2 -2 -2.9 -3.47 -3.95 -4.2 -
g 10 8 2 2 2 1 1 1 1 2 2 -3 2 6 -1 2 0 0 2 2 3 5 4.2 3.77 3.09 2.4 -
h 10 8 4 4 4 4 4 4 4 4 4 -2 6 7 6 3 3 3 4 4 3 1 0.2 -0.86 -1.99 -2.8 -
g 10 9 2 2 2 2 3 3 3 3 3 5 10 -2 2 2 3 3 3 3 3 1 0.3 -0.21 -1.03 -1.8 -
h 10 9 0 0 0 0 0 0 0 0 0 0 11 -1 0 0 1 1 0 0 -1 -2 -2.2 -2.31 -1.97 -1.2 -
g 10 10 0 0 0 0 0 0 0 0 0 -2 3 0 0 0 -1 -1 0 0 0 0 -1.1 -2.09 -2.80 -3.6 -
h 10 10 -6 -6 -6 -6 -6 -6 -6 -6 -6 -2 8 -3 -7 -6 -4 -5 -6 -6 -6 -7 -7.4 -7.93 -8.31 -8.7 -
g 11 0 - - - - - - - - - - - - - - - - - - - - 2.7 2.95 3.05 3.1 -
g 11 1 - - - - - - - - - - - - - - - - - - - - -1.7 -1.60 -1.48 -1.5 -
h 11 1 - - - - - - - - - - - - - - - - - - - - 0.1 0.26 0.13 -0.1 -
g 11 2 - - - - - - - - - - - - - - - - - - - - -1.9 -1.88 -2.03 -2.3 -
h 11 2 - - - - - - - - - - - - - - - - - - - - 1.3 1.44 1.67 2.0 -
g 11 3 - - - - - - - - - - - - - - - - - - - - 1.5 1.44 1.65 2.0 -
h 11 3 - - - - - - - - - - - - - - - - - - - - -0.9 -0.77 -0.66 -0.7 -
g 11 4 - - - - - - - - - - - - - - - - - - - - -0.1 -0.31 -0.51 -0.8 -
h 11 4 - - - - - - - - - - - - - - - - - - - - -2.6 -2.27 -1.76 -1.1 -
g 11 5 - - - - - - - - - - - - - - - - - - - - 0.1 0.29 0.54 0.6 -
h 11 5 - - - - - - - - - - - - - - - - - - - - 0.9 0.90 0.85 0.8 -
g 11 6 - - - - - - - - - - - - - - - - - - - - -0.7 -0.79 -0.79 -0.7 -
h 11 6 - - - - - - - - - - - - - - - - - - - - -0.7 -0.58 -0.39 -0.2 -
g 11 7 - - - - - - - - - - - - - - - - - - - - 0.7 0.53 0.37 0.2 -
h 11 7 - - - - - - - - - - - - - - - - - - - - -2.8 -2.69 -2.51 -2.2 -
g 11 8 - - - - - - - - - - - - - - - - - - - - 1.7 1.80 1.79 1.7 -
h 11 8 - - - - - - - - - - - - - - - - - - - - -0.9 -1.08 -1.27 -1.4 -
g 11 9 - - - - - - - - - - - - - - - - - - - - 0.1 0.16 0.12 -0.2 -
h 11 9 - - - - - - - - - - - - - - - - - - - - -1.2 -1.58 -2.11 -2.5 -
g 11 10 - - - - - - - - - - - - - - - - - - - - 1.2 0.96 0.75 0.4 -
h 11 10 - - - - - - - - - - - - - - - - - - - - -1.9 -1.90 -1.94 -2.0 -
g 11 11 - - - - - - - - - - - - - - - - - - - - 4.0 3.99 3.75 3.5 -
h 11 11 - - - - - - - - - - - - - - - - - - - - -0.9 -1.39 -1.86 -2.4 -
g 12 0 - - - - - - - - - - - - - - - - - - - - -2.2 -2.15 -2.12 -1.9 -
g 12 1 - - - - - - - - - - - - - - - - - - - - -0.3 -0.29 -0.21 -0.2 -
h 12 1 - - - - - - - - - - - - - - - - - - - - -0.4 -0.55 -0.87 -1.1 -
g 12 2 - - - - - - - - - - - - - - - - - - - - 0.2 0.21 0.30 0.4 -
h 12 2 - - - - - - - - - - - - - - - - - - - - 0.3 0.23 0.27 0.4 -
g 12 3 - - - - - - - - - - - - - - - - - - - - 0.9 0.89 1.04 1.2 -
h 12 3 - - - - - - - - - - - - - - - - - - - - 2.5 2.38 2.13 1.9 -
g 12 4 - - - - - - - - - - - - - - - - - - - - -0.2 -0.38 -0.63 -0.8 -
h 12 4 - - - - - - - - - - - - - - - - - - - - -2.6 -2.63 -2.49 -2.2 -
g 12 5 - - - - - - - - - - - - - - - - - - - - 0.9 0.96 0.95 0.9 -
h 12 5 - - - - - - - - - - - - - - - - - - - - 0.7 0.61 0.49 0.3 -
g 12 6 - - - - - - - - - - - - - - - - - - - - -0.5 -0.30 -0.11 0.1 -
h 12 6 - - - - - - - - - - - - - - - - - - - - 0.3 0.40 0.59 0.7 -
g 12 7 - - - - - - - - - - - - - - - - - - - - 0.3 0.46 0.52 0.5 -
h 12 7 - - - - - - - - - - - - - - - - - - - - 0.0 0.01 0.00 -0.1 -
g 12 8 - - - - - - - - - - - - - - - - - - - - -0.3 -0.35 -0.39 -0.3 -
h 12 8 - - - - - - - - - - - - - - - - - - - - 0.0 0.02 0.13 0.3 -
g 12 9 - - - - - - - - - - - - - - - - - - - - -0.4 -0.36 -0.37 -0.4 -
h 12 9 - - - - - - - - - - - - - - - - - - - - 0.3 0.28 0.27 0.2 -
g 12 10 - - - - - - - - - - - - - - - - - - - - -0.1 0.08 0.21 0.2 -
h 12 10 - - - - - - - - - - - - - - - - - - - - -0.9 -0.87 -0.86 -0.9 -
g 12 11 - - - - - - - - - - - - - - - - - - - - -0.2 -0.49 -0.77 -0.9 -
h 12 11 - - - - - - - - - - - - - - - - - - - - -0.4 -0.34 -0.23 -0.1 -
g 12 12 - - - - - - - - - - - - - - - - - - - - -0.4 -0.08 0.04 0.0 -
h 12 12 - - - - - - - - - - - - - - - - - - - - 0.8 0.88 0.87 0.7 -
g 13 0 - - - - - - - - - - - - - - - - - - - - -0.2 -0.16 -0.09 0.0 -
g 13 1 - - - - - - - - - - - - - - - - - - - - -0.9 -0.88 -0.89 -0.9 -
h 13 1 - - - - - - - - - - - - - - - - - - - - -0.9 -0.76 -0.87 -0.9 -
g 13 2 - - - - - - - - - - - - - - - - - - - - 0.3 0.30 0.31 0.4 -
h 13 2 - - - - - - - - - - - - - - - - - - - - 0.2 0.33 0.30 0.4 -
g 13 3 - - - - - - - - - - - - - - - - - - - - 0.1 0.28 0.42 0.5 -
h 13 3 - - - - - - - - - - - - - - - - - - - - 1.8 1.72 1.66 1.6 -
g 13 4 - - - - - - - - - - - - - - - - - - - - -0.4 -0.43 -0.45 -0.5 -
h 13 4 - - - - - - - - - - - - - - - - - - - - -0.4 -0.54 -0.59 -0.5 -
g 13 5 - - - - - - - - - - - - - - - - - - - - 1.3 1.18 1.08 1.0 -
h 13 5 - - - - - - - - - - - - - - - - - - - - -1.0 -1.07 -1.14 -1.2 -
g 13 6 - - - - - - - - - - - - - - - - - - - - -0.4 -0.37 -0.31 -0.2 -
h 13 6 - - - - - - - - - - - - - - - - - - - - -0.1 -0.04 -0.07 -0.1 -
g 13 7 - - - - - - - - - - - - - - - - - - - - 0.7 0.75 0.78 0.8 -
h 13 7 - - - - - - - - - - - - - - - - - - - - 0.7 0.63 0.54 0.4 -
g 13 8 - - - - - - - - - - - - - - - - - - - - -0.4 -0.26 -0.18 -0.1 -
h 13 8 - - - - - - - - - - - - - - - - - - - - 0.3 0.21 0.10 -0.1 -
g 13 9 - - - - - - - - - - - - - - - - - - - - 0.3 0.35 0.38 0.3 -
h 13 9 - - - - - - - - - - - - - - - - - - - - 0.6 0.53 0.49 0.4 -
g 13 10 - - - - - - - - - - - - - - - - - - - - -0.1 -0.05 0.02 0.1 -
h 13 10 - - - - - - - - - - - - - - - - - - - - 0.3 0.38 0.44 0.5 -
g 13 11 - - - - - - - - - - - - - - - - - - - - 0.4 0.41 0.42 0.5 -
h 13 11 - - - - - - - - - - - - - - - - - - - - -0.2 -0.22 -0.25 -0.3 -
g 13 12 - - - - - - - - - - - - - - - - - - - - 0.0 -0.10 -0.26 -0.4 -
h 13 12 - - - - - - - - - - - - - - - - - - - - -0.5 -0.57 -0.53 -0.4 -
g 13 13 - - - - - - - - - - - - - - - - - - - - 0.1 -0.18 -0.26 -0.3 -
h 13 13 - - - - - - - - - - - - - - - - - - - - -0.9 -0.82 -0.79 -0.8 -
  1. Here, Schmidt semi-normalized spherical harmonic coefficients are provided. Coefficients for degrees n =1-13 in units of nanotesla are listed for IGRF and definitive DGRF main-field models. Coefficients for degrees n =1-8 in units of nanotesla/year are listed for the predictive secular variation. Undefined coefficients are marked with ‘-’; these should be set to 0.0 in numerical calculations as is the case in the coefficient files available online.