% year, date, start time (HHMMSS, UT), end time (HHMMSS, UT), % Geographic latitude (120 km alt), Geographic longitude (120 km alt), % Alt of max(Sig_P) [km], Height-integrated Sig_P [S], % Altitude of max(Sig_H) [km], Height-integrated Sig_H [S], % Altitude of maximum(Ne) [km], Maximum(Ne) [log(m^(-3))] % Elevation, Azimuth, Kp, and Solar zenith angle (SZA) % Magic constant = 1 1990 115 163000 163200 68.77 21.34 124 7.574 113 8.602 141 11.145 42.8 136.4 3 107.7 1990 115 163200 163400 68.77 21.34 122 7.213 113 8.623 143 11.111 42.8 136.4 3 107.8 1990 115 163400 163600 68.77 21.34 118 7.370 115 8.829 118 11.051 42.8 136.4 3 108.0 1990 115 163600 163800 68.77 21.34 122 8.851 115 10.524 122 11.195 42.8 136.4 3 108.2 1990 115 163800 164000 68.77 21.34 120 9.657 113 12.053 120 11.253 42.8 136.4 3 108.4 1990 115 164000 164200 68.77 21.34 118 11.323 111 14.195 118 11.290 42.8 136.4 3 108.5 1990 115 164200 164400 68.77 21.34 122 10.832 115 9.344 122 11.284 42.8 136.4 3 108.7 1990 115 164400 164600 68.77 21.34 118 11.321 113 9.681 118 11.311 42.8 136.4 3 108.9 1990 115 164600 164800 68.77 21.34 120 11.335 111 9.291 117 11.290 42.8 136.4 3 109.0 1990 115 164800 165000 68.77 21.34 118 10.654 113 8.564 113 11.292 42.8 136.4 3 109.2 1990 115 165000 165200 68.77 21.34 122 11.426 109 9.059 124 11.268 42.8 136.4 3 109.4 1990 115 165200 165400 68.77 21.34 122 12.200 113 10.004 113 11.303 42.8 136.4 3 109.6 1990 115 165400 165600 68.77 21.34 118 11.194 109 9.886 118 11.244 42.8 136.4 3 109.7 1990 115 165600 165800 68.77 21.34 120 11.533 103 11.148 109 11.323 42.8 136.4 3 109.9 1990 115 165800 170000 68.77 21.34 122 10.742 111 9.069 111 11.239 42.8 136.4 3 110.1 1990 115 170000 170200 68.77 21.34 122 11.561 109 16.684 122 11.275 42.8 136.4 3 110.3 1990 115 170200 170400 68.77 21.34 122 9.269 109 8.263 109 11.240 42.8 136.4 3 110.4 1990 115 170400 170600 68.77 21.34 118 10.207 109 8.722 109 11.268 42.8 136.4 3 110.6 1990 115 170600 170800 68.77 21.34 120 10.294 111 8.930 115 11.248 42.8 136.4 3 110.8 1990 115 170800 171000 68.77 21.34 118 10.683 111 14.017 118 11.272 42.8 136.4 3 110.9 1990 115 171000 171200 68.77 21.34 122 10.786 113 14.235 113 11.267 42.8 136.4 3 111.1 1990 115 171200 171400 68.77 21.34 124 9.950 113 8.208 113 11.267 42.8 136.4 3 111.3 1990 115 171400 171600 68.77 21.34 118 11.252 113 14.791 115 11.240 42.8 136.4 3 111.5 1990 115 171600 171800 68.77 21.34 120 10.041 111 13.367 111 11.247 42.8 136.4 3 111.6 1990 115 171800 172000 68.77 21.34 118 8.699 111 7.466 115 11.256 42.8 136.4 3 111.8 1990 115 172000 172200 68.77 21.34 120 8.504 113 6.768 118 11.195 42.8 136.4 3 112.0 1990 115 172200 172400 68.77 21.34 118 8.804 111 12.293 111 11.196 42.8 136.4 3 112.2 1990 115 172400 172600 68.77 21.34 118 8.114 109 9.967 128 11.077 42.8 136.4 3 112.3 1990 115 172600 172800 68.77 21.34 122 7.471 109 9.797 139 11.153 42.8 136.4 3 112.5 1990 115 172800 173000 68.77 21.34 126 6.098 113 8.452 130 11.124 42.8 136.4 3 112.7 1990 115 173000 173200 68.77 21.34 118 6.125 109 8.710 147 11.029 42.8 136.4 3 112.9 1990 115 173200 173400 68.77 21.34 124 6.201 111 8.972 147 11.056 42.8 136.4 3 113.0 1990 115 173400 173600 68.77 21.34 120 6.903 113 10.771 113 11.142 42.8 136.4 3 113.2 1990 115 173600 173800 68.77 21.34 122 8.496 109 13.131 109 11.173 42.8 136.4 3 113.4 1990 115 173800 174000 68.77 21.34 122 7.543 113 11.537 113 11.130 42.8 136.4 3 113.6 1990 115 174000 174200 68.77 21.34 122 6.934 107 10.093 107 11.049 42.8 136.4 3 113.7 1990 115 174200 174400 68.77 21.34 120 6.498 113 9.497 147 11.298 42.8 136.4 3 113.9 1990 115 174400 174600 68.77 21.34 126 6.470 109 9.991 109 11.083 42.8 136.4 3 114.1 1990 115 174600 174800 68.77 21.34 122 5.715 111 7.979 141 11.097 42.8 136.4 3 114.3 1990 115 174800 175000 68.77 21.34 124 6.179 109 8.614 124 11.044 42.8 136.4 3 114.4 1990 115 175000 175200 68.77 21.34 122 3.874 103 5.040 122 10.896 42.8 136.4 3 114.6 1990 115 175200 175400 68.77 21.34 124 3.852 111 5.200 124 10.953 42.8 136.4 3 114.8 1990 115 175400 175600 68.77 21.34 124 4.058 111 5.305 137 11.007 42.8 136.4 3 114.9 1990 115 175600 175800 68.77 21.34 124 4.496 107 6.132 124 11.147 42.8 136.4 3 115.1 1990 115 175800 180000 68.77 21.34 122 5.220 107 8.585 107 11.022 42.8 136.4 3 115.3 1990 115 180000 180200 68.77 21.34 117 6.180 113 9.123 137 11.417 42.8 136.4 2 115.5 1990 115 180200 180400 68.77 21.34 118 7.302 109 10.228 143 11.327 42.8 136.4 2 115.6 1990 115 180400 180600 68.77 21.34 118 6.755 107 9.680 115 11.071 42.8 136.4 2 115.8 1990 115 180600 180800 68.77 21.34 120 6.304 111 8.949 113 11.069 42.8 136.4 2 116.0 1990 115 180800 181000 68.77 21.34 120 6.846 109 9.373 139 11.217 42.8 136.4 2 116.1 1990 115 181000 181200 68.77 21.34 118 6.071 103 4.586 141 11.018 42.8 136.4 2 116.3 1990 115 181200 181400 68.77 21.34 117 5.704 107 8.169 111 11.009 42.8 136.4 2 116.5 1990 115 181400 181600 68.77 21.34 126 5.106 109 7.372 109 11.003 42.8 136.4 2 116.7 1990 115 181600 181800 68.77 21.34 117 6.109 109 9.307 109 11.050 42.8 136.4 2 116.8 1990 115 181800 182000 68.77 21.34 122 6.956 111 10.336 111 11.107 42.8 136.4 2 117.0 1990 115 182000 182200 68.77 21.34 120 6.200 111 7.668 135 11.081 42.8 136.4 2 117.2 1990 115 182200 182400 68.77 21.34 124 5.275 107 7.303 124 10.983 42.8 136.4 2 117.3 1990 115 182400 182600 68.77 21.34 120 6.396 113 8.568 139 11.047 42.8 136.4 2 117.5 1990 115 182600 182800 68.77 21.34 124 5.142 113 6.670 141 11.029 42.8 136.4 2 117.7 1990 115 182800 183000 68.77 21.34 124 5.225 109 7.181 139 10.951 42.8 136.4 2 117.8 1990 115 183000 183200 68.77 21.34 120 5.077 111 6.489 148 11.108 42.8 136.4 2 118.0 1990 115 183200 183400 68.77 21.34 124 5.526 113 6.671 124 11.059 42.8 136.4 2 118.2 1990 115 183400 183600 68.77 21.34 122 4.441 109 5.913 139 10.990 42.8 136.4 2 118.3 1990 115 183600 183800 68.77 21.34 124 4.471 107 5.906 132 11.026 42.8 136.4 2 118.5 1990 115 183800 184000 68.77 21.34 128 4.181 107 5.584 128 10.972 42.8 136.4 2 118.7 1990 115 184000 184200 68.77 21.34 124 4.311 105 5.775 143 10.960 42.8 136.4 2 118.8 1990 115 184200 184400 68.77 21.34 124 4.105 107 4.954 139 11.079 42.8 136.4 2 119.0 1990 115 184400 184600 68.77 21.34 122 3.783 102 5.300 122 10.887 42.8 136.4 2 119.2 1990 115 184600 184800 68.77 21.34 118 3.952 118 5.324 133 11.001 42.8 136.4 2 119.3 1990 115 184800 185000 68.77 21.34 122 3.430 111 4.148 141 10.915 42.8 136.4 2 119.5 1990 115 185000 185200 68.77 21.34 130 3.390 103 4.319 141 10.896 42.8 136.4 2 119.7 1990 115 185200 185400 68.77 21.34 120 4.165 117 5.203 126 10.953 42.8 136.4 2 119.8 1990 115 185400 185600 68.77 21.34 122 4.020 105 4.593 133 10.967 42.8 136.4 2 120.0 1990 115 185600 185800 68.77 21.34 128 3.702 102 4.127 128 11.006 42.8 136.4 2 120.2 1990 115 185800 190000 68.77 21.34 120 3.240 107 4.024 133 10.924 42.8 136.4 2 120.3 1990 115 190000 190200 68.77 21.34 120 3.222 102 3.925 133 10.914 42.8 136.4 2 120.5 1990 115 190200 190400 68.77 21.34 128 3.476 115 4.698 128 11.004 42.8 136.4 2 120.6 1990 115 190400 190600 68.77 21.34 117 3.275 117 4.538 117 10.985 42.8 136.4 2 120.8 1990 115 190600 190800 68.77 21.34 120 2.998 117 3.542 120 10.881 42.8 136.4 2 121.0 1990 115 190800 191000 68.77 21.34 122 2.740 107 3.536 122 10.810 42.8 136.4 2 121.1 1990 115 191000 191200 68.77 21.34 126 2.708 109 4.130 126 10.869 42.8 136.4 2 121.3 1990 115 191200 191400 68.77 21.34 122 3.497 111 4.266 137 10.982 42.8 136.4 2 121.4 1990 115 191400 191600 68.77 21.34 120 2.942 107 4.068 107 10.876 42.8 136.4 2 121.6 1990 115 191600 191800 68.77 21.34 124 2.993 102 4.854 102 11.003 42.8 136.4 2 121.7 1990 115 191800 192000 68.77 21.34 124 2.478 109 3.724 124 10.957 42.8 136.4 2 121.9 1990 115 192000 192200 68.77 21.34 118 2.916 118 4.086 118 10.952 42.8 136.4 2 122.0 1990 115 192200 192400 68.77 21.34 120 2.731 102 3.561 132 10.869 42.8 136.4 2 122.2 1990 115 192400 192600 68.77 21.34 118 3.034 111 4.499 111 10.841 42.8 136.4 2 122.4 1990 115 192600 192800 68.77 21.34 124 3.544 115 4.655 124 11.022 42.8 136.4 2 122.5 1990 115 192800 193000 68.77 21.34 130 2.742 113 4.586 130 10.972 42.8 136.4 2 122.7 1990 115 193000 193200 68.77 21.34 118 2.756 115 3.700 118 10.805 42.8 136.4 2 122.8 1990 115 193200 193400 68.77 21.34 117 3.027 117 4.226 117 10.865 42.8 136.4 2 123.0 1990 115 193400 193600 68.77 21.34 128 2.929 115 3.530 128 10.892 42.8 136.4 2 123.1 1990 115 193600 193800 68.77 21.34 120 3.016 115 3.802 128 10.921 42.8 136.4 2 123.2 1990 115 193800 194000 68.77 21.34 122 3.147 109 4.560 122 10.993 42.8 136.4 2 123.4 1990 115 194000 194200 68.77 21.34 120 3.459 103 4.623 133 10.933 42.8 136.4 2 123.5 1990 115 194200 194400 68.77 21.34 122 3.611 102 4.502 143 10.942 42.8 136.4 2 123.7 1990 115 194400 194600 68.77 21.34 130 3.227 111 4.351 130 11.002 42.8 136.4 2 123.8 1990 115 194600 194800 68.77 21.34 120 3.779 115 4.932 120 10.913 42.8 136.4 2 124.0 1990 115 194800 195000 68.77 21.34 122 3.564 105 5.058 126 10.778 42.8 136.4 2 124.1 1990 115 195000 195200 68.77 21.34 124 3.247 113 4.720 124 10.872 42.8 136.4 2 124.3 1990 115 195200 195400 68.77 21.34 124 3.265 111 4.723 132 10.907 42.8 136.4 2 124.4 1990 115 195400 195600 68.77 21.34 124 3.485 115 4.399 135 10.861 42.8 136.4 2 124.5 1990 115 195600 195800 68.77 21.34 122 3.053 109 4.044 122 10.901 42.8 136.4 2 124.7 1990 115 195800 200000 68.77 21.34 120 3.191 107 4.491 120 10.878 42.8 136.4 2 124.8 1990 115 200000 200200 68.77 21.34 120 3.398 107 4.401 133 10.881 42.8 136.4 2 124.9 1990 115 200200 200400 68.77 21.34 130 3.125 103 4.123 130 10.902 42.8 136.4 2 125.1 1990 115 200400 200600 68.77 21.34 120 3.364 115 4.336 132 10.876 42.8 136.4 2 125.2 1990 115 200600 200800 68.77 21.34 122 3.244 102 4.237 135 10.971 42.8 136.4 2 125.3 1990 115 200800 201000 68.77 21.34 128 3.224 102 5.272 102 10.964 42.8 136.4 2 125.5 1990 115 201000 201200 68.77 21.34 124 3.288 103 4.723 124 10.979 42.8 136.4 2 125.6 1990 115 201200 201400 68.77 21.34 126 3.270 113 3.791 141 10.991 42.8 136.4 2 125.7 1990 115 201400 201600 68.77 21.34 122 3.460 107 4.474 126 10.874 42.8 136.4 2 125.9 1990 115 201600 201800 68.77 21.34 122 3.385 107 4.098 133 10.927 42.8 136.4 2 126.0 1990 115 201800 202000 68.77 21.34 122 3.090 115 4.237 124 10.848 42.8 136.4 2 126.1 1990 115 202000 202200 68.77 21.34 126 3.823 107 4.950 137 10.928 42.8 136.4 2 126.2 1990 115 202200 202400 68.77 21.34 126 3.831 117 5.077 130 10.909 42.8 136.4 2 126.4 1990 115 202400 202600 68.77 21.34 122 4.085 100 5.781 115 10.897 42.8 136.4 2 126.5 1990 115 202600 202800 68.77 21.34 118 4.145 105 5.333 139 10.894 42.8 136.4 2 126.6 1990 115 202800 203000 68.77 21.34 120 4.523 109 6.183 130 11.081 42.8 136.4 2 126.7 1990 115 203000 203200 68.77 21.34 124 4.202 105 5.491 126 10.947 42.8 136.4 2 126.9 1990 115 203200 203350 68.77 21.34 122 3.733 102 5.483 102 10.897 42.8 136.4 2 127.0 1990 115 203420 203600 68.77 21.34 120 4.390 115 5.401 139 10.952 42.8 136.4 2 127.1 1990 115 203600 203800 68.77 21.34 128 4.322 103 4.939 128 11.156 42.8 136.4 2 127.2 1990 115 203800 204000 68.77 21.34 126 4.728 115 5.502 126 10.974 42.8 136.4 2 127.3 1990 115 204000 204200 68.77 21.34 122 4.294 103 5.739 122 10.982 42.8 136.4 2 127.4 1990 115 204200 204400 68.77 21.34 118 5.153 100 6.831 100 11.019 42.8 136.4 2 127.5 1990 115 204400 204600 68.77 21.34 118 4.822 115 7.098 115 10.985 42.8 136.4 2 127.6 1990 115 204600 204800 68.77 21.34 120 5.186 109 7.544 118 10.941 42.8 136.4 2 127.8 1990 115 204800 205000 68.77 21.34 117 5.578 109 7.765 117 11.027 42.8 136.4 2 127.9 1990 115 205000 205200 68.77 21.34 120 5.835 107 8.336 147 11.121 42.8 136.4 2 128.0 1990 115 205200 205400 68.77 21.34 118 6.071 113 9.383 118 11.136 42.8 136.4 2 128.1 1990 115 205400 205550 68.77 21.34 118 5.909 111 8.999 111 11.021 42.8 136.4 2 128.2 1990 115 205610 205800 68.77 21.34 120 5.564 111 8.438 120 11.021 42.8 136.4 2 128.3 1990 115 205800 210000 68.77 21.34 118 5.482 105 7.965 128 11.028 42.8 136.4 2 128.4 1990 115 210000 210200 68.77 21.34 117 5.532 109 8.223 145 11.020 42.8 136.4 1 128.5 1990 115 210200 210400 68.77 21.34 117 6.341 107 8.795 117 11.044 42.8 136.4 1 128.6 1990 115 210400 210600 68.77 21.34 122 6.348 107 9.059 122 11.067 42.8 136.4 1 128.7 1990 115 210600 210800 68.77 21.34 115 6.708 115 8.769 115 11.157 42.8 136.4 1 128.8 1990 115 210800 211000 68.77 21.34 120 6.807 109 9.443 126 11.060 42.8 136.4 1 128.9 1990 115 211000 211200 68.77 21.34 124 6.965 111 9.565 139 11.176 42.8 136.4 1 128.9 1990 115 211200 211400 68.77 21.34 124 5.957 111 8.717 124 11.045 42.8 136.4 1 129.0 1990 115 211400 211600 68.77 21.34 122 6.785 115 9.394 115 11.127 42.8 136.4 1 129.1 1990 115 211600 211800 68.77 21.34 120 6.456 107 9.344 126 11.039 42.8 136.4 1 129.2 1990 115 211800 212000 68.77 21.34 118 6.187 107 9.055 107 11.060 42.8 136.4 1 129.3 1990 115 212000 212200 68.77 21.34 122 5.930 107 8.438 107 10.984 42.8 136.4 1 129.4 1990 115 212200 212400 68.77 21.34 117 6.134 109 8.821 117 11.100 42.8 136.4 1 129.5 1990 115 212400 212600 68.77 21.34 118 6.003 113 8.167 147 11.148 42.8 136.4 1 129.5 1990 115 212600 212800 68.77 21.34 120 6.424 109 8.681 139 11.113 42.8 136.4 1 129.6 1990 115 212800 213000 68.77 21.34 126 6.217 111 7.875 147 11.065 42.8 136.4 1 129.7 1990 115 213000 213200 68.77 21.34 117 5.124 109 8.010 109 11.023 42.8 136.4 1 129.8 1990 115 213200 213400 68.77 21.34 120 5.077 109 7.691 141 10.996 42.8 136.4 1 129.8 1990 115 213400 213600 68.77 21.34 118 4.830 113 7.263 113 10.988 42.8 136.4 1 129.9 1990 115 213600 213800 68.77 21.34 118 4.997 113 6.697 118 10.985 42.8 136.4 1 130.0 1990 115 213800 214000 68.77 21.34 117 4.985 117 6.768 117 11.008 42.8 136.4 1 130.1 1990 115 214000 214200 68.77 21.34 118 4.632 117 6.056 128 10.964 42.8 136.4 1 130.1 1990 115 214200 214400 68.77 21.34 126 4.749 107 6.306 126 11.079 42.8 136.4 1 130.2 1990 115 214400 214600 68.77 21.34 122 4.776 113 5.966 132 11.010 42.8 136.4 1 130.2 1990 115 214600 214800 68.77 21.34 118 4.049 111 5.446 139 10.964 42.8 136.4 1 130.3 1990 115 214800 215000 68.77 21.34 118 3.763 115 5.466 115 10.939 42.8 136.4 1 130.4 1990 115 215000 215200 68.77 21.34 118 3.733 109 5.075 130 10.949 42.8 136.4 1 130.4 1990 115 215220 215400 68.77 21.34 118 3.458 103 5.948 103 11.063 42.8 136.4 1 130.5 1990 115 215400 215600 68.77 21.34 118 4.122 109 6.117 109 10.969 42.8 136.4 1 130.5 1990 115 215600 215800 68.77 21.34 120 3.976 109 5.411 143 10.957 42.8 136.4 1 130.6 1990 115 215800 220000 68.77 21.34 118 3.744 111 5.774 118 10.895 42.8 136.4 1 130.6 1990 115 220000 220150 68.77 21.34 124 3.505 109 5.376 124 10.971 42.8 136.4 1 130.7 1990 115 220200 220400 68.77 21.34 120 3.013 105 5.348 105 10.922 42.8 136.4 1 130.7 1990 115 220400 220600 68.77 21.34 124 3.022 111 4.534 124 10.952 42.8 136.4 1 130.8 1990 115 220600 220800 68.77 21.34 120 3.282 113 5.267 113 10.900 42.8 136.4 1 130.8 1990 115 220800 221000 68.77 21.34 120 3.437 113 5.318 120 10.985 42.8 136.4 1 130.9 1990 115 221000 221200 68.77 21.34 128 3.216 113 4.909 128 10.894 42.8 136.4 1 130.9 1990 115 221200 221400 68.77 21.34 124 3.460 100 4.273 137 11.006 42.8 136.4 1 130.9 1990 115 221400 221600 68.77 21.34 118 3.273 115 5.002 118 10.935 42.8 136.4 1 131.0 1990 115 221610 221800 68.77 21.34 124 3.364 117 3.877 135 10.947 42.8 136.4 1 131.0 1990 115 221800 222000 68.77 21.34 120 3.613 113 4.215 141 10.963 42.8 136.4 1 131.1 1990 115 222000 222200 68.77 21.34 118 3.199 118 3.924 130 10.904 42.8 136.4 1 131.1 1990 115 222200 222400 68.77 21.34 122 3.274 115 4.606 139 10.922 42.8 136.4 1 131.1 1990 115 222400 222600 68.77 21.34 122 2.345 111 3.147 126 10.792 42.8 136.4 1 131.1 1990 115 222600 222800 68.77 21.34 117 3.229 113 3.965 137 11.062 42.8 136.4 1 131.2 1990 115 222800 223000 68.77 21.34 120 2.784 109 4.021 120 10.791 42.8 136.4 1 131.2 1990 115 223000 223200 68.77 21.34 122 2.463 113 3.024 122 10.717 42.8 136.4 1 131.2 1990 115 223200 223400 68.77 21.34 120 2.705 103 4.044 103 10.779 42.8 136.4 1 131.2 1990 115 223400 223600 68.77 21.34 120 3.001 107 3.624 130 10.841 42.8 136.4 1 131.2 1990 115 223600 223800 68.77 21.34 124 3.365 100 4.438 147 11.009 42.8 136.4 1 131.3 1990 115 223800 224000 68.77 21.34 117 2.688 103 3.867 132 10.849 42.8 136.4 1 131.3 1990 115 224000 224200 68.77 21.34 120 2.638 100 4.725 132 10.802 42.8 136.4 1 131.3 1990 115 224200 224400 68.77 21.34 120 2.611 105 3.978 120 10.859 42.8 136.4 1 131.3 1990 115 224400 224530 68.77 21.34 120 1.961 102 3.473 102 10.841 42.8 136.4 1 131.3 1990 115 224610 224800 69.82 23.01 118 6.869 109 10.651 118 11.138 37.3 78.3 1 131.3 1990 115 224800 225000 69.82 23.01 116 4.044 109 10.141 116 11.102 37.3 78.3 1 131.3 1990 115 225000 225200 69.82 23.01 118 6.981 111 10.094 118 11.090 37.3 78.3 1 131.3 1990 115 225200 225400 69.82 23.01 121 5.777 111 10.060 136 11.161 37.3 78.3 1 131.3 1990 115 225400 225600 69.82 23.01 124 5.281 111 10.180 111 11.112 37.3 78.3 1 131.3 1990 115 225600 225800 69.82 23.01 119 6.673 111 10.303 130 11.064 37.3 78.3 1 131.3 1990 115 225800 230000 69.82 23.01 123 6.740 109 10.216 123 11.132 37.3 78.3 1 131.3 1990 115 230010 230110 69.82 23.01 119 0.054 91 0.086 91 8.620 37.3 78.3 1 131.3 1990 115 230155 230206 69.82 23.01 123 1.072 123 1.601 123 11.680 37.3 78.3 1 131.3