% 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 6.958 113 7.413 141 11.145 42.8 136.4 30 107.7 1990 115 163200 163400 68.77 21.34 122 6.610 113 7.477 143 11.111 42.8 136.4 30 107.8 1990 115 163400 163600 68.77 21.34 118 6.770 115 7.637 118 11.051 42.8 136.4 30 108.0 1990 115 163600 163800 68.77 21.34 122 8.130 115 9.106 122 11.195 42.8 136.4 30 108.2 1990 115 163800 164000 68.77 21.34 120 8.908 111 10.427 120 11.253 42.8 136.4 30 108.4 1990 115 164000 164200 68.77 21.34 118 10.436 111 12.291 118 11.290 42.8 136.4 30 108.5 1990 115 164200 164400 68.77 21.34 122 9.998 115 7.776 122 11.284 42.8 136.4 30 108.7 1990 115 164400 164600 68.77 21.34 118 10.453 111 8.061 118 11.311 42.8 136.4 30 108.9 1990 115 164600 164800 68.77 21.34 120 10.457 111 7.699 117 11.290 42.8 136.4 30 109.0 1990 115 164800 165000 68.77 21.34 118 9.828 113 7.100 113 11.292 42.8 136.4 30 109.2 1990 115 165000 165200 68.77 21.34 118 10.524 109 7.499 124 11.268 42.8 136.4 30 109.4 1990 115 165200 165400 68.77 21.34 118 11.274 113 8.303 113 11.303 42.8 136.4 30 109.6 1990 115 165400 165600 68.77 21.34 118 10.384 109 8.254 118 11.244 42.8 136.4 30 109.7 1990 115 165600 165800 68.77 21.34 120 10.700 103 9.398 109 11.323 42.8 136.4 30 109.9 1990 115 165800 170000 68.77 21.34 122 9.948 107 7.555 111 11.239 42.8 136.4 30 110.1 1990 115 170000 170200 68.77 21.34 122 10.675 109 14.615 122 11.275 42.8 136.4 30 110.3 1990 115 170200 170400 68.77 21.34 118 8.590 109 6.905 109 11.240 42.8 136.4 30 110.4 1990 115 170400 170600 68.77 21.34 118 9.406 109 7.295 109 11.268 42.8 136.4 30 110.6 1990 115 170600 170800 68.77 21.34 120 9.514 111 7.466 115 11.248 42.8 136.4 30 110.8 1990 115 170800 171000 68.77 21.34 118 9.871 111 12.184 118 11.272 42.8 136.4 30 110.9 1990 115 171000 171200 68.77 21.34 122 9.963 113 12.397 113 11.267 42.8 136.4 30 111.1 1990 115 171200 171400 68.77 21.34 118 9.186 113 6.824 113 11.267 42.8 136.4 30 111.3 1990 115 171400 171600 68.77 21.34 118 10.393 109 12.879 115 11.240 42.8 136.4 30 111.5 1990 115 171600 171800 68.77 21.34 120 9.293 111 11.644 111 11.247 42.8 136.4 30 111.6 1990 115 171800 172000 68.77 21.34 115 8.079 111 6.205 115 11.256 42.8 136.4 30 111.8 1990 115 172000 172200 68.77 21.34 118 7.872 113 5.588 118 11.195 42.8 136.4 30 112.0 1990 115 172200 172400 68.77 21.34 118 8.160 111 10.747 111 11.196 42.8 136.4 30 112.2 1990 115 172400 172600 68.77 21.34 118 7.467 109 8.647 128 11.077 42.8 136.4 30 112.3 1990 115 172600 172800 68.77 21.34 115 6.877 109 8.568 139 11.153 42.8 136.4 30 112.5 1990 115 172800 173000 68.77 21.34 126 5.646 113 7.393 130 11.124 42.8 136.4 30 112.7 1990 115 173000 173200 68.77 21.34 118 5.670 109 7.623 147 11.029 42.8 136.4 30 112.9 1990 115 173200 173400 68.77 21.34 120 5.738 111 7.868 147 11.056 42.8 136.4 30 113.0 1990 115 173400 173600 68.77 21.34 120 6.453 113 9.442 113 11.142 42.8 136.4 30 113.2 1990 115 173600 173800 68.77 21.34 122 7.917 109 11.513 109 11.173 42.8 136.4 30 113.4 1990 115 173800 174000 68.77 21.34 122 7.050 107 10.088 113 11.130 42.8 136.4 30 113.6 1990 115 174000 174200 68.77 21.34 122 6.437 107 8.846 107 11.049 42.8 136.4 30 113.7 1990 115 174200 174400 68.77 21.34 120 6.048 105 8.314 147 11.298 42.8 136.4 30 113.9 1990 115 174400 174600 68.77 21.34 122 6.042 109 8.763 109 11.083 42.8 136.4 30 114.1 1990 115 174600 174800 68.77 21.34 122 5.298 111 6.975 141 11.097 42.8 136.4 30 114.3 1990 115 174800 175000 68.77 21.34 124 5.732 109 7.517 124 11.044 42.8 136.4 30 114.4 1990 115 175000 175200 68.77 21.34 122 3.599 103 4.377 122 10.896 42.8 136.4 30 114.6 1990 115 175200 175400 68.77 21.34 124 3.571 111 4.538 124 10.953 42.8 136.4 30 114.8 1990 115 175400 175600 68.77 21.34 124 3.766 105 4.607 137 11.007 42.8 136.4 30 114.9 1990 115 175600 175800 68.77 21.34 124 4.160 107 5.358 124 11.147 42.8 136.4 30 115.1 1990 115 175800 180000 68.77 21.34 122 4.891 107 7.542 107 11.022 42.8 136.4 30 115.3 1990 115 180000 180200 68.77 21.34 117 5.767 113 7.991 137 11.417 42.8 136.4 17 115.5 1990 115 180200 180400 68.77 21.34 118 6.768 109 8.956 143 11.327 42.8 136.4 17 115.6 1990 115 180400 180600 68.77 21.34 118 6.279 107 8.476 115 11.071 42.8 136.4 17 115.8 1990 115 180600 180800 68.77 21.34 120 5.858 111 7.831 113 11.069 42.8 136.4 17 116.0 1990 115 180800 181000 68.77 21.34 120 6.340 109 8.197 139 11.217 42.8 136.4 17 116.1 1990 115 181000 181200 68.77 21.34 118 5.588 103 3.826 141 11.018 42.8 136.4 17 116.3 1990 115 181200 181400 68.77 21.34 117 5.299 107 7.165 111 11.009 42.8 136.4 17 116.5 1990 115 181400 181600 68.77 21.34 126 4.747 109 6.473 109 11.003 42.8 136.4 17 116.7 1990 115 181600 181800 68.77 21.34 117 5.703 109 8.177 109 11.050 42.8 136.4 17 116.8 1990 115 181800 182000 68.77 21.34 118 6.491 111 9.055 111 11.107 42.8 136.4 17 117.0 1990 115 182000 182200 68.77 21.34 120 5.719 111 6.672 135 11.081 42.8 136.4 17 117.2 1990 115 182200 182400 68.77 21.34 124 4.893 107 6.398 124 10.983 42.8 136.4 17 117.3 1990 115 182400 182600 68.77 21.34 120 5.924 109 7.496 139 11.047 42.8 136.4 17 117.5 1990 115 182600 182800 68.77 21.34 124 4.763 107 5.820 141 11.029 42.8 136.4 17 117.7 1990 115 182800 183000 68.77 21.34 118 4.841 109 6.289 139 10.951 42.8 136.4 17 117.8 1990 115 183000 183200 68.77 21.34 120 4.678 111 5.672 148 11.108 42.8 136.4 17 118.0 1990 115 183200 183400 68.77 21.34 124 5.092 113 5.790 124 11.059 42.8 136.4 17 118.2 1990 115 183400 183600 68.77 21.34 122 4.113 109 5.163 139 10.990 42.8 136.4 17 118.3 1990 115 183600 183800 68.77 21.34 124 4.140 107 5.160 132 11.026 42.8 136.4 17 118.5 1990 115 183800 184000 68.77 21.34 128 3.872 107 4.870 128 10.972 42.8 136.4 17 118.7 1990 115 184000 184200 68.77 21.34 124 3.995 105 5.051 143 10.960 42.8 136.4 17 118.8 1990 115 184200 184400 68.77 21.34 124 3.784 107 4.316 139 11.079 42.8 136.4 17 119.0 1990 115 184400 184600 68.77 21.34 122 3.494 102 4.652 122 10.887 42.8 136.4 17 119.2 1990 115 184600 184800 68.77 21.34 118 3.680 107 4.643 133 11.001 42.8 136.4 17 119.3 1990 115 184800 185000 68.77 21.34 118 3.177 111 3.606 141 10.915 42.8 136.4 17 119.5 1990 115 185000 185200 68.77 21.34 130 3.129 103 3.782 141 10.896 42.8 136.4 17 119.7 1990 115 185200 185400 68.77 21.34 120 3.855 117 4.528 126 10.953 42.8 136.4 17 119.8 1990 115 185400 185600 68.77 21.34 122 3.707 105 3.994 133 10.967 42.8 136.4 17 120.0 1990 115 185600 185800 68.77 21.34 128 3.406 102 3.577 128 11.006 42.8 136.4 17 120.2 1990 115 185800 190000 68.77 21.34 120 2.989 107 3.507 133 10.924 42.8 136.4 17 120.3 1990 115 190000 190200 68.77 21.34 120 2.964 102 3.430 133 10.914 42.8 136.4 17 120.5 1990 115 190200 190400 68.77 21.34 118 3.221 115 4.118 128 11.004 42.8 136.4 17 120.6 1990 115 190400 190600 68.77 21.34 117 3.042 103 3.975 117 10.985 42.8 136.4 17 120.8 1990 115 190600 190800 68.77 21.34 120 2.762 117 3.081 120 10.881 42.8 136.4 17 121.0 1990 115 190800 191000 68.77 21.34 122 2.533 107 3.096 122 10.810 42.8 136.4 17 121.1 1990 115 191000 191200 68.77 21.34 126 2.525 109 3.649 126 10.869 42.8 136.4 17 121.3 1990 115 191200 191400 68.77 21.34 122 3.228 111 3.727 137 10.982 42.8 136.4 17 121.4 1990 115 191400 191600 68.77 21.34 120 2.737 107 3.574 107 10.876 42.8 136.4 17 121.6 1990 115 191600 191800 68.77 21.34 117 2.802 102 4.297 102 11.003 42.8 136.4 17 121.7 1990 115 191800 192000 68.77 21.34 124 2.310 109 3.287 124 10.957 42.8 136.4 17 121.9 1990 115 192000 192200 68.77 21.34 118 2.718 118 3.581 118 10.952 42.8 136.4 17 122.0 1990 115 192200 192400 68.77 21.34 120 2.524 102 3.119 132 10.869 42.8 136.4 17 122.2 1990 115 192400 192600 68.77 21.34 118 2.836 111 3.959 111 10.841 42.8 136.4 17 122.4 1990 115 192600 192800 68.77 21.34 124 3.281 115 4.085 124 11.022 42.8 136.4 17 122.5 1990 115 192800 193000 68.77 21.34 130 2.585 113 4.060 130 10.972 42.8 136.4 17 122.7 1990 115 193000 193200 68.77 21.34 118 2.569 103 3.245 118 10.805 42.8 136.4 17 122.8 1990 115 193200 193400 68.77 21.34 117 2.824 115 3.712 117 10.865 42.8 136.4 17 123.0 1990 115 193400 193600 68.77 21.34 128 2.719 115 3.082 128 10.892 42.8 136.4 17 123.1 1990 115 193600 193800 68.77 21.34 120 2.812 115 3.322 128 10.921 42.8 136.4 17 123.2 1990 115 193800 194000 68.77 21.34 122 2.944 109 4.024 122 10.993 42.8 136.4 17 123.4 1990 115 194000 194200 68.77 21.34 120 3.213 103 4.068 133 10.933 42.8 136.4 17 123.5 1990 115 194200 194400 68.77 21.34 122 3.333 102 3.959 143 10.942 42.8 136.4 17 123.7 1990 115 194400 194600 68.77 21.34 130 2.997 111 3.835 130 11.002 42.8 136.4 17 123.8 1990 115 194600 194800 68.77 21.34 120 3.513 115 4.330 120 10.913 42.8 136.4 17 124.0 1990 115 194800 195000 68.77 21.34 122 3.309 105 4.472 126 10.778 42.8 136.4 17 124.1 1990 115 195000 195200 68.77 21.34 124 3.026 113 4.172 124 10.872 42.8 136.4 17 124.3 1990 115 195200 195400 68.77 21.34 124 3.036 111 4.181 132 10.907 42.8 136.4 17 124.4 1990 115 195400 195600 68.77 21.34 115 3.236 115 3.863 135 10.861 42.8 136.4 17 124.5 1990 115 195600 195800 68.77 21.34 122 2.841 109 3.566 122 10.901 42.8 136.4 17 124.7 1990 115 195800 200000 68.77 21.34 120 2.974 107 3.965 120 10.878 42.8 136.4 17 124.8 1990 115 200000 200200 68.77 21.34 120 3.149 107 3.889 133 10.881 42.8 136.4 17 124.9 1990 115 200200 200400 68.77 21.34 130 2.886 103 3.660 130 10.902 42.8 136.4 17 125.1 1990 115 200400 200600 68.77 21.34 120 3.120 115 3.826 132 10.876 42.8 136.4 17 125.2 1990 115 200600 200800 68.77 21.34 122 3.004 102 3.751 135 10.971 42.8 136.4 17 125.3 1990 115 200800 201000 68.77 21.34 128 3.009 102 4.702 102 10.964 42.8 136.4 17 125.5 1990 115 201000 201200 68.77 21.34 124 3.063 103 4.190 124 10.979 42.8 136.4 17 125.6 1990 115 201200 201400 68.77 21.34 126 3.006 102 3.347 141 10.991 42.8 136.4 17 125.7 1990 115 201400 201600 68.77 21.34 122 3.205 107 3.955 126 10.874 42.8 136.4 17 125.9 1990 115 201600 201800 68.77 21.34 122 3.116 107 3.617 133 10.927 42.8 136.4 17 126.0 1990 115 201800 202000 68.77 21.34 122 2.869 115 3.754 124 10.848 42.8 136.4 17 126.1 1990 115 202000 202200 68.77 21.34 126 3.536 107 4.382 137 10.928 42.8 136.4 17 126.2 1990 115 202200 202400 68.77 21.34 126 3.546 117 4.496 130 10.909 42.8 136.4 17 126.4 1990 115 202400 202600 68.77 21.34 122 3.783 100 5.138 115 10.897 42.8 136.4 17 126.5 1990 115 202600 202800 68.77 21.34 118 3.822 105 4.728 139 10.894 42.8 136.4 17 126.6 1990 115 202800 203000 68.77 21.34 120 4.187 109 5.485 130 11.081 42.8 136.4 17 126.7 1990 115 203000 203200 68.77 21.34 124 3.873 105 4.872 126 10.947 42.8 136.4 17 126.9 1990 115 203200 203350 68.77 21.34 122 3.471 102 4.878 102 10.897 42.8 136.4 17 127.0 1990 115 203420 203600 68.77 21.34 120 4.042 115 4.787 139 10.952 42.8 136.4 17 127.1 1990 115 203600 203800 68.77 21.34 128 3.970 103 4.359 128 11.156 42.8 136.4 17 127.2 1990 115 203800 204000 68.77 21.34 126 4.343 109 4.870 126 10.974 42.8 136.4 17 127.3 1990 115 204000 204200 68.77 21.34 122 3.971 103 5.091 122 10.982 42.8 136.4 17 127.4 1990 115 204200 204400 68.77 21.34 118 4.757 100 6.069 100 11.019 42.8 136.4 17 127.5 1990 115 204400 204600 68.77 21.34 118 4.479 115 6.320 115 10.985 42.8 136.4 17 127.6 1990 115 204600 204800 68.77 21.34 118 4.807 109 6.724 118 10.941 42.8 136.4 17 127.8 1990 115 204800 205000 68.77 21.34 117 5.176 109 6.906 117 11.027 42.8 136.4 17 127.9 1990 115 205000 205200 68.77 21.34 120 5.410 107 7.427 147 11.121 42.8 136.4 17 128.0 1990 115 205200 205400 68.77 21.34 118 5.661 113 8.369 118 11.136 42.8 136.4 17 128.1 1990 115 205400 205550 68.77 21.34 118 5.492 111 8.035 111 11.021 42.8 136.4 17 128.2 1990 115 205610 205800 68.77 21.34 120 5.185 111 7.522 120 11.021 42.8 136.4 17 128.3 1990 115 205800 210000 68.77 21.34 118 5.092 105 7.103 128 11.028 42.8 136.4 17 128.4 1990 115 210000 210200 68.77 21.34 115 5.129 109 7.367 145 11.020 42.8 136.4 10 128.5 1990 115 210200 210400 68.77 21.34 117 5.860 107 7.870 117 11.044 42.8 136.4 10 128.6 1990 115 210400 210600 68.77 21.34 122 5.875 107 8.105 122 11.067 42.8 136.4 10 128.7 1990 115 210600 210800 68.77 21.34 115 6.201 115 7.824 115 11.157 42.8 136.4 10 128.8 1990 115 210800 211000 68.77 21.34 120 6.290 109 8.450 126 11.060 42.8 136.4 10 128.9 1990 115 211000 211200 68.77 21.34 118 6.428 111 8.563 139 11.176 42.8 136.4 10 128.9 1990 115 211200 211400 68.77 21.34 124 5.523 111 7.807 124 11.045 42.8 136.4 10 129.0 1990 115 211400 211600 68.77 21.34 122 6.279 115 8.399 115 11.127 42.8 136.4 10 129.1 1990 115 211600 211800 68.77 21.34 120 5.983 107 8.369 126 11.039 42.8 136.4 10 129.2 1990 115 211800 212000 68.77 21.34 118 5.744 107 8.110 107 11.060 42.8 136.4 10 129.3 1990 115 212000 212200 68.77 21.34 117 5.482 107 7.569 107 10.984 42.8 136.4 10 129.4 1990 115 212200 212400 68.77 21.34 117 5.683 109 7.908 117 11.100 42.8 136.4 10 129.5 1990 115 212400 212600 68.77 21.34 118 5.537 113 7.320 147 11.148 42.8 136.4 10 129.5 1990 115 212600 212800 68.77 21.34 120 5.929 109 7.778 139 11.113 42.8 136.4 10 129.6 1990 115 212800 213000 68.77 21.34 126 5.724 111 7.050 147 11.065 42.8 136.4 10 129.7 1990 115 213000 213200 68.77 21.34 117 4.754 109 7.206 109 11.023 42.8 136.4 10 129.8 1990 115 213200 213400 68.77 21.34 120 4.693 109 6.919 141 10.996 42.8 136.4 10 129.8 1990 115 213400 213600 68.77 21.34 118 4.468 113 6.533 113 10.988 42.8 136.4 10 129.9 1990 115 213600 213800 68.77 21.34 118 4.609 113 6.004 118 10.985 42.8 136.4 10 130.0 1990 115 213800 214000 68.77 21.34 117 4.597 117 6.070 117 11.008 42.8 136.4 10 130.1 1990 115 214000 214200 68.77 21.34 118 4.274 117 5.419 128 10.964 42.8 136.4 10 130.1 1990 115 214200 214400 68.77 21.34 126 4.380 107 5.647 126 11.079 42.8 136.4 10 130.2 1990 115 214400 214600 68.77 21.34 122 4.376 113 5.355 132 11.010 42.8 136.4 10 130.2 1990 115 214600 214800 68.77 21.34 118 3.731 111 4.889 139 10.964 42.8 136.4 10 130.3 1990 115 214800 215000 68.77 21.34 118 3.480 107 4.916 115 10.939 42.8 136.4 10 130.4 1990 115 215000 215200 68.77 21.34 118 3.446 109 4.556 130 10.949 42.8 136.4 10 130.4 1990 115 215220 215400 68.77 21.34 118 3.210 103 5.377 103 11.063 42.8 136.4 10 130.5 1990 115 215400 215600 68.77 21.34 118 3.813 109 5.507 109 10.969 42.8 136.4 10 130.5 1990 115 215600 215800 68.77 21.34 120 3.666 109 4.864 143 10.957 42.8 136.4 10 130.6 1990 115 215800 220000 68.77 21.34 118 3.473 111 5.204 118 10.895 42.8 136.4 10 130.6 1990 115 220000 220150 68.77 21.34 124 3.248 109 4.853 124 10.971 42.8 136.4 10 130.7 1990 115 220200 220400 68.77 21.34 120 2.805 105 4.848 105 10.922 42.8 136.4 10 130.7 1990 115 220400 220600 68.77 21.34 124 2.797 111 4.096 124 10.952 42.8 136.4 10 130.8 1990 115 220600 220800 68.77 21.34 120 3.040 113 4.772 113 10.900 42.8 136.4 10 130.8 1990 115 220800 221000 68.77 21.34 120 3.192 113 4.804 120 10.985 42.8 136.4 10 130.9 1990 115 221000 221200 68.77 21.34 128 2.976 113 4.438 128 10.894 42.8 136.4 10 130.9 1990 115 221200 221400 68.77 21.34 124 3.180 100 3.846 137 11.006 42.8 136.4 10 130.9 1990 115 221400 221600 68.77 21.34 118 3.029 113 4.524 118 10.935 42.8 136.4 10 131.0 1990 115 221610 221800 68.77 21.34 124 3.091 117 3.481 135 10.947 42.8 136.4 10 131.0 1990 115 221800 222000 68.77 21.34 120 3.307 113 3.799 141 10.963 42.8 136.4 10 131.1 1990 115 222000 222200 68.77 21.34 118 2.937 105 3.535 130 10.904 42.8 136.4 10 131.1 1990 115 222200 222400 68.77 21.34 118 3.015 115 4.166 139 10.922 42.8 136.4 10 131.1 1990 115 222400 222600 68.77 21.34 122 2.167 111 2.841 126 10.792 42.8 136.4 10 131.1 1990 115 222600 222800 68.77 21.34 117 2.967 113 3.580 137 11.062 42.8 136.4 10 131.2 1990 115 222800 223000 68.77 21.34 120 2.572 109 3.639 120 10.791 42.8 136.4 10 131.2 1990 115 223000 223200 68.77 21.34 122 2.269 113 2.727 122 10.717 42.8 136.4 10 131.2 1990 115 223200 223400 68.77 21.34 117 2.502 103 3.666 103 10.779 42.8 136.4 10 131.2 1990 115 223400 223600 68.77 21.34 118 2.759 107 3.268 130 10.841 42.8 136.4 10 131.2 1990 115 223600 223800 68.77 21.34 124 3.086 100 4.016 147 11.009 42.8 136.4 10 131.3 1990 115 223800 224000 68.77 21.34 117 2.477 103 3.507 132 10.849 42.8 136.4 10 131.3 1990 115 224000 224200 68.77 21.34 120 2.436 100 4.304 132 10.802 42.8 136.4 10 131.3 1990 115 224200 224400 68.77 21.34 120 2.414 105 3.611 120 10.859 42.8 136.4 10 131.3 1990 115 224400 224530 68.77 21.34 120 1.816 102 3.167 102 10.841 42.8 136.4 10 131.3 1990 115 224610 224800 69.82 23.01 118 6.375 109 9.768 118 11.138 37.3 78.3 10 131.3 1990 115 224800 225000 69.82 23.01 116 3.832 109 9.326 116 11.102 37.3 78.3 10 131.3 1990 115 225000 225200 69.82 23.01 118 6.472 111 9.250 118 11.090 37.3 78.3 10 131.3 1990 115 225200 225400 69.82 23.01 121 5.387 111 9.231 136 11.161 37.3 78.3 10 131.3 1990 115 225400 225600 69.82 23.01 124 4.950 111 9.347 111 11.112 37.3 78.3 10 131.3 1990 115 225600 225800 69.82 23.01 119 6.192 111 9.454 130 11.064 37.3 78.3 10 131.3 1990 115 225800 230000 69.82 23.01 123 6.242 109 9.376 123 11.132 37.3 78.3 10 131.3 1990 115 230010 230110 69.82 23.01 119 0.049 91 0.079 91 8.620 37.3 78.3 10 131.3 1990 115 230155 230206 69.82 23.01 123 0.998 123 1.420 123 11.680 37.3 78.3 10 131.3