% 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 = 1.08 1987 921 80000 80500 69.36 19.20 121 3.167 113 4.603 147 11.025 77.5 182.6 2 73.8 1987 921 80500 81000 69.36 19.20 118 3.154 108 4.455 132 11.002 77.5 182.6 2 73.5 1987 921 81000 81500 69.36 19.20 118 3.007 89 4.986 147 11.029 77.5 182.6 2 73.2 1987 921 81500 82000 69.36 19.20 118 3.211 108 4.329 147 11.003 77.5 182.6 2 72.9 1987 921 82000 82500 69.36 19.20 126 3.355 108 4.360 147 11.013 77.5 182.6 2 72.7 1987 921 82500 83000 69.36 19.20 116 3.153 89 4.968 147 10.978 77.5 182.6 2 72.4 1987 921 83000 83500 69.36 19.20 121 3.178 108 4.442 147 10.969 77.5 182.6 2 72.2 1987 921 83500 84000 69.36 19.20 118 3.398 110 4.807 147 11.040 77.5 182.6 2 72.0 1987 921 84000 84500 69.36 19.20 118 3.302 110 4.722 145 11.049 77.5 182.6 2 71.7 1987 921 84500 85000 69.36 19.20 121 3.440 113 4.754 139 11.045 77.5 182.6 2 71.5 1987 921 85000 85500 69.36 19.20 124 3.551 108 4.746 147 11.067 77.5 182.6 2 71.3 1987 921 85500 90000 69.36 19.20 121 3.562 110 4.860 145 11.023 77.5 182.6 2 71.1 1987 921 90000 90500 69.36 19.20 118 3.516 105 4.752 145 11.002 77.5 182.6 3 70.9 1987 921 90500 91000 69.36 19.20 121 3.522 110 4.510 147 11.028 77.5 182.6 3 70.7 1987 921 91000 91500 69.36 19.20 121 3.477 110 4.749 137 11.010 77.5 182.6 3 70.6 1987 921 91500 92000 69.36 19.20 116 3.701 113 4.858 147 11.060 77.5 182.6 3 70.4 1987 921 92000 92500 69.36 19.20 118 3.660 108 5.045 147 11.056 77.5 182.6 3 70.3 1987 921 92500 93000 69.36 19.20 121 3.559 113 4.840 145 11.036 77.5 182.6 3 70.1 1987 921 93000 93500 69.36 19.20 118 3.637 110 4.924 147 11.100 77.5 182.6 3 70.0 1987 921 93500 94000 69.36 19.20 118 4.506 110 5.969 147 11.107 77.5 182.6 3 69.8 1987 921 94000 94340 69.36 19.20 118 3.736 110 4.848 142 11.032 77.5 182.6 3 69.7 1987 921 94730 95000 69.36 19.20 121 1.419 113 1.676 134 10.723 77.5 182.6 3 69.6 1987 921 95000 95500 69.36 19.20 124 3.382 110 4.680 145 11.059 77.5 182.6 3 69.5 1987 921 95500 100000 69.36 19.20 118 3.707 110 4.905 145 11.056 77.5 182.6 3 69.4 1987 921 100000 100500 69.36 19.20 118 3.563 113 4.825 147 11.068 77.5 182.6 3 69.4 1987 921 100500 101000 69.36 19.20 118 3.575 110 4.505 147 11.078 77.5 182.6 3 69.3 1987 921 101000 101500 69.36 19.20 118 3.853 110 5.133 147 11.080 77.5 182.6 3 69.2 1987 921 101500 102000 69.36 19.20 121 3.572 110 4.673 147 11.093 77.5 182.6 3 69.2 1987 921 102000 102500 69.36 19.20 124 3.536 108 5.110 142 11.028 77.5 182.6 3 69.2 1987 921 102500 103000 69.36 19.20 118 3.681 89 5.759 147 11.088 77.5 182.6 3 69.1 1987 921 103000 103500 69.36 19.20 118 3.814 108 5.097 139 11.087 77.5 182.6 3 69.1 1987 921 103500 104000 69.36 19.20 121 4.028 87 6.682 145 11.072 77.5 182.6 3 69.1 1987 921 104000 104500 69.36 19.20 118 4.103 113 5.580 118 11.076 77.5 182.6 3 69.1 1987 921 104500 105000 69.36 19.20 118 3.999 108 5.528 142 11.057 77.5 182.6 3 69.1 1987 921 105000 105500 69.36 19.20 118 3.592 116 4.197 145 11.017 77.5 182.6 3 69.2 1987 921 105500 110000 69.36 19.20 121 3.888 108 5.106 126 11.043 77.5 182.6 3 69.2 1987 921 110000 110500 69.36 19.20 118 4.159 113 5.829 124 11.037 77.5 182.6 3 69.2 1987 921 110500 111000 69.36 19.20 118 4.193 113 5.452 147 11.087 77.5 182.6 3 69.3 1987 921 111000 111500 69.36 19.20 121 4.277 110 5.767 134 11.088 77.5 182.6 3 69.4 1987 921 111500 112000 69.36 19.20 118 4.636 113 5.974 145 11.104 77.5 182.6 3 69.4 1987 921 112000 112500 69.36 19.20 121 4.258 110 5.483 147 11.079 77.5 182.6 3 69.5 1987 921 112500 113000 69.36 19.20 121 3.983 110 5.082 147 11.096 77.5 182.6 3 69.6 1987 921 113000 113500 69.36 19.20 124 3.915 110 5.149 145 11.088 77.5 182.6 3 69.7 1987 921 113500 114000 69.36 19.20 121 3.533 110 4.728 145 11.028 77.5 182.6 3 69.8 1987 921 114000 114500 69.36 19.20 121 3.295 113 4.610 145 11.045 77.5 182.6 3 70.0 1987 921 114500 115000 69.36 19.20 118 3.301 110 4.056 147 11.029 77.5 182.6 3 70.1 1987 921 115000 115500 69.36 19.20 118 3.418 110 4.751 145 11.026 77.5 182.6 3 70.3 1987 921 115500 120000 69.36 19.20 121 3.466 87 5.678 145 10.983 77.5 182.6 3 70.4 1987 921 120000 120500 69.36 19.20 118 3.175 110 4.003 147 11.023 77.5 182.6 4 70.6 1987 921 120500 121000 69.36 19.20 118 3.364 110 4.159 145 11.007 77.5 182.6 4 70.7 1987 921 121000 121500 69.36 19.20 121 3.619 110 4.897 142 11.079 77.5 182.6 4 70.9 1987 921 121500 122000 69.36 19.20 118 3.221 113 4.389 147 11.097 77.5 182.6 4 71.1 1987 921 122000 122500 69.36 19.20 121 3.307 113 4.198 145 10.995 77.5 182.6 4 71.3 1987 921 122500 123000 69.36 19.20 121 3.369 113 4.408 147 10.971 77.5 182.6 4 71.5 1987 921 123000 123500 69.36 19.20 116 3.270 110 4.135 147 11.012 77.5 182.6 4 71.7 1987 921 123500 124000 69.36 19.20 121 3.293 110 4.424 142 11.021 77.5 182.6 4 72.0 1987 921 124000 124500 69.36 19.20 116 3.090 108 4.101 147 11.015 77.5 182.6 4 72.2 1987 921 124500 125000 69.36 19.20 121 3.131 87 4.226 142 11.008 77.5 182.6 4 72.4 1987 921 125000 125500 69.36 19.20 118 3.012 110 4.105 139 10.974 77.5 182.6 4 72.7 1987 921 125500 130000 69.36 19.20 116 2.953 110 3.910 147 10.969 77.5 182.6 4 72.9 1987 921 130000 130130 69.36 19.20 118 3.354 87 4.288 147 11.101 77.5 182.6 4 73.2 1987 921 130640 131000 69.36 19.20 121 2.141 110 2.027 145 10.930 77.5 182.6 4 73.5 1987 921 131000 131500 69.36 19.20 116 2.827 113 3.473 147 10.992 77.5 182.6 4 73.8 1987 921 131500 131950 69.36 19.20 118 2.780 110 3.553 147 10.984 77.5 182.6 4 74.1 1987 921 133000 133500 69.36 19.20 124 2.470 108 3.265 142 10.946 77.5 182.6 4 75.0 1987 921 133500 134000 69.36 19.20 118 2.669 108 3.627 145 11.003 77.5 182.6 4 75.3 1987 921 134000 134500 69.36 19.20 116 2.570 87 3.344 145 10.850 77.5 182.6 4 75.6 1987 921 134500 135000 69.36 19.20 121 2.600 110 3.368 145 10.915 77.5 182.6 4 75.9 1987 921 135000 135500 69.36 19.20 121 2.844 110 3.263 142 10.940 77.5 182.6 4 76.3 1987 921 135500 140000 69.36 19.20 118 3.033 113 3.594 139 11.001 77.5 182.6 4 76.6 1987 921 140000 140500 69.36 19.20 121 3.267 113 4.138 145 11.044 77.5 182.6 4 77.0 1987 921 140500 141000 69.36 19.20 118 3.949 116 4.608 145 11.111 77.5 182.6 4 77.3 1987 921 141000 141500 69.36 19.20 121 2.865 116 3.220 142 11.002 77.5 182.6 4 77.7 1987 921 141500 142000 69.36 19.20 126 2.554 113 2.936 147 10.996 77.5 182.6 4 78.0 1987 921 142000 142500 69.36 19.20 121 2.687 105 3.196 145 10.952 77.5 182.6 4 78.4 1987 921 142500 143000 69.36 19.20 124 2.995 113 3.286 132 10.976 77.5 182.6 4 78.8 1987 921 143000 143500 69.36 19.20 121 3.089 110 3.288 134 10.953 77.5 182.6 4 79.1 1987 921 143500 144000 69.36 19.20 124 3.896 116 4.193 124 11.062 77.5 182.6 4 79.5 1987 921 144000 144500 69.36 19.20 124 3.639 110 3.912 142 11.066 77.5 182.6 4 79.9 1987 921 144500 145000 69.36 19.20 124 3.540 92 3.754 147 11.071 77.5 182.6 4 80.3 1987 921 145000 145500 69.36 19.20 124 3.424 113 3.069 147 11.053 77.5 182.6 4 80.7 1987 921 145500 150000 69.36 19.20 121 3.516 110 3.910 132 11.049 77.5 182.6 4 81.1 1987 921 150000 150500 69.36 19.20 124 3.134 118 3.590 132 10.970 77.5 182.6 2 81.5 1987 921 150500 151000 69.36 19.20 121 2.451 110 2.652 132 10.874 77.5 182.6 2 81.9 1987 921 151000 151500 69.36 19.20 124 2.517 113 2.631 145 10.874 77.5 182.6 2 82.3 1987 921 151500 152000 69.36 19.20 121 3.548 118 3.972 121 11.023 77.5 182.6 2 82.7 1987 921 152000 152500 69.36 19.20 121 3.205 116 3.663 139 10.972 77.5 182.6 2 83.1 1987 921 152500 153000 69.36 19.20 118 2.474 116 2.555 145 10.867 77.5 182.6 2 83.6 1987 921 153000 153500 69.36 19.20 118 2.188 116 2.405 147 10.874 77.5 182.6 2 84.0 1987 921 153500 154000 69.36 19.20 118 2.679 113 3.094 129 10.919 77.5 182.6 2 84.4 1987 921 154000 154500 69.36 19.20 118 2.066 116 2.167 137 10.806 77.5 182.6 2 84.8 1987 921 154500 155000 69.36 19.20 118 1.949 116 2.473 137 10.856 77.5 182.6 2 85.3 1987 921 155000 155500 69.36 19.20 121 1.742 113 1.823 145 10.752 77.5 182.6 2 85.7 1987 921 155500 160000 69.36 19.20 118 1.709 113 1.575 147 10.700 77.5 182.6 2 86.1 1987 921 160000 160500 69.36 19.20 121 1.687 113 1.718 147 10.753 77.5 182.6 2 86.6 1987 921 160500 161000 69.36 19.20 121 1.597 113 1.749 142 10.735 77.5 182.6 2 87.0 1987 921 161000 161500 69.36 19.20 124 1.528 116 1.675 142 10.670 77.5 182.6 2 87.4 1987 921 161500 162000 69.36 19.20 118 1.456 113 1.803 142 10.733 77.5 182.6 2 87.9 1987 921 162000 162500 69.36 19.20 124 1.434 118 1.323 145 10.762 77.5 182.6 2 88.3 1987 921 162500 163000 69.36 19.20 121 1.484 100 2.061 142 10.722 77.5 182.6 2 88.7 1987 921 163000 163500 69.36 19.20 124 1.421 113 1.488 147 10.675 77.5 182.6 2 89.2 1987 921 163500 164000 69.36 19.20 121 1.541 105 1.311 145 10.741 77.5 182.6 2 89.6 1987 921 164000 164500 69.36 19.20 124 1.415 89 1.910 145 10.773 77.5 182.6 2 90.0 1987 921 164500 165000 69.36 19.20 121 1.336 87 1.377 137 10.784 77.5 182.6 2 90.5 1987 921 165000 165500 69.36 19.20 121 1.298 89 0.998 137 10.740 77.5 182.6 2 90.9 1987 921 165500 170000 69.36 19.20 121 1.325 97 1.434 134 10.703 77.5 182.6 2 91.4 1987 921 170000 170500 69.36 19.20 121 1.234 103 1.147 147 10.640 77.5 182.6 2 91.8 1987 921 170500 171000 69.36 19.20 121 1.202 105 1.016 137 10.687 77.5 182.6 2 92.2 1987 921 171000 171500 69.36 19.20 124 1.287 89 1.356 134 10.727 77.5 182.6 2 92.7 1987 921 171500 172000 69.36 19.20 121 1.403 103 1.221 132 10.812 77.5 182.6 2 93.1 1987 921 172000 172500 69.36 19.20 121 1.512 87 1.554 129 10.766 77.5 182.6 2 93.5 1987 921 172500 173000 69.36 19.20 124 2.034 113 2.379 145 10.874 77.5 182.6 2 93.9 1987 921 173000 173500 69.36 19.20 118 2.563 116 2.728 126 10.932 77.5 182.6 2 94.4 1987 921 173500 174000 69.36 19.20 118 2.768 116 3.101 116 10.943 77.5 182.6 2 94.8 1987 921 174000 174500 69.36 19.20 118 2.867 113 3.100 124 11.011 77.5 182.6 2 95.2 1987 921 174500 175000 69.36 19.20 121 2.739 116 2.909 129 10.951 77.5 182.6 2 95.6 1987 921 175000 175500 69.36 19.20 121 3.201 116 3.619 121 11.037 77.5 182.6 2 96.1 1987 921 175500 180000 69.36 19.20 118 3.505 116 3.717 129 11.100 77.5 182.6 2 96.5 1987 921 180000 180500 69.36 19.20 121 3.664 92 4.255 121 11.111 77.5 182.6 1 96.9 1987 921 180500 181000 69.36 19.20 121 3.507 116 3.234 132 11.109 77.5 182.6 1 97.3 1987 921 181000 181500 69.36 19.20 121 3.413 116 2.966 126 11.108 77.5 182.6 1 97.7 1987 921 181500 182000 69.36 19.20 121 3.482 116 3.627 126 11.134 77.5 182.6 1 98.1 1987 921 182000 182500 69.36 19.20 121 3.588 116 3.313 126 11.110 77.5 182.6 1 98.5 1987 921 182500 183000 69.36 19.20 145 0.108 95 0.210 95 10.164 77.5 182.6 1 98.9 1987 921 183000 183500 69.36 19.20 118 1.819 118 0.990 142 10.917 77.5 182.6 1 99.3 1987 921 183500 184000 69.36 19.20 124 3.101 116 2.889 132 11.074 77.5 182.6 1 99.7 1987 921 184000 184500 69.36 19.20 121 3.231 116 3.508 124 11.055 77.5 182.6 1 100.1 1987 921 184500 185000 69.36 19.20 121 3.512 116 3.812 126 11.112 77.5 182.6 1 100.4 1987 921 185000 185500 69.36 19.20 121 3.464 116 3.894 126 11.109 77.5 182.6 1 100.8 1987 921 185500 190000 69.36 19.20 121 3.676 116 4.135 126 11.115 77.5 182.6 1 101.2 1987 921 190000 190500 69.36 19.20 118 3.412 116 3.816 126 11.109 77.5 182.6 1 101.5 1987 921 190500 191000 69.36 19.20 121 3.485 116 3.995 124 11.099 77.5 182.6 1 101.9 1987 921 191000 191500 69.36 19.20 121 4.170 116 3.720 124 11.082 77.5 182.6 1 102.3 1987 921 191500 192000 69.36 19.20 118 4.083 113 3.901 129 11.088 77.5 182.6 1 102.6 1987 921 192000 192500 69.36 19.20 121 3.311 116 3.674 129 11.056 77.5 182.6 1 102.9 1987 921 192500 193000 69.36 19.20 121 2.764 116 3.317 142 11.054 77.5 182.6 1 103.3 1987 921 193000 193100 69.36 19.20 121 2.954 108 3.099 121 11.083 77.5 182.6 1 103.6