De Backer H. BREWER UCCLE TOTALCOL 01-OCT-1990 00:00:0031-OCT-1990 23:59:590001 30 1010 Hugo De Backer Uccle; Royal Meteorological Institute Belgium Brewer Spectrophotometer Instrument No.16 NDSC 1 1 1990 10 01 2002 05 21 0 Day of year 2 1.000 1.0E+18 9.999 99.999 O3 Air Mass Factor O3 Vertical Column Density (molecules/cm**2) 9 1 1 1 1 1 1.0 1.0 1 1.0 9999 99 99 99 99 999.9 999.9 9999 99.999 Year of observation (UT) Month of observation (UT) Day of observation (UT) Hour of observation (UT) Minute of observation (UT) Latitude observation point (degrees) Longitude observation point (degrees) Elevation of station above MSL (m) Solar zenith angle at time of observation (degrees) 1 1 1.384 1990 10 01 09 12 50.80 -4.35 100 61.652 2.082 7.753 1.426 1990 10 01 10 13 50.80 -4.35 100 56.526 1.799 7.648 1.490 1990 10 01 11 45 50.80 -4.35 100 54.067 1.693 7.651 1.509 1990 10 01 12 13 50.80 -4.35 100 54.713 1.719 7.584 1.549 1990 10 01 13 10 50.80 -4.35 100 57.939 1.868 7.586 1.593 1990 10 01 14 13 50.80 -4.35 100 64.071 2.255 7.748 1.632 1990 10 01 15 10 50.80 -4.35 100 71.188 3.013 7.672 2.343 1990 10 02 08 13 50.80 -4.35 100 68.808 2.705 7.511 2.382 1990 10 02 09 10 50.80 -4.35 100 62.205 2.118 7.439 2.426 1990 10 02 10 13 50.80 -4.35 100 56.880 1.816 7.371 2.466 1990 10 02 11 10 50.80 -4.35 100 54.562 1.713 7.414 2.490 1990 10 02 11 45 50.80 -4.35 100 54.454 1.709 7.382 2.509 1990 10 02 12 13 50.80 -4.35 100 55.108 1.736 7.307 2.576 1990 10 02 13 50 50.80 -4.35 100 61.908 2.099 7.500 2.595 1990 10 02 14 16 50.80 -4.35 100 64.772 2.311 7.680 2.632 1990 10 02 15 10 50.80 -4.35 100 71.556 3.068 7.651 3.343 1990 10 03 08 13 50.80 -4.35 100 69.095 2.739 7.138 4.390 1990 10 04 09 22 50.80 -4.35 100 61.683 2.084 7.433 4.393 1990 10 04 09 26 50.80 -4.35 100 61.282 2.058 7.533 4.423 1990 10 04 10 09 50.80 -4.35 100 57.838 1.862 7.619 4.426 1990 10 04 10 13 50.80 -4.35 100 57.577 1.849 7.457 4.466 1990 10 04 11 10 50.80 -4.35 100 55.322 1.745 7.702 4.468 1990 10 04 11 14 50.80 -4.35 100 55.262 1.743 7.898 4.487 1990 10 04 11 41 50.80 -4.35 100 55.187 1.739 8.016 4.549 1990 10 04 13 10 50.80 -4.35 100 59.118 1.930 7.710 4.593 1990 10 04 14 13 50.80 -4.35 100 65.217 2.348 7.680 4.632 1990 10 04 15 10 50.80 -4.35 100 72.294 3.183 7.390 5.343 1990 10 05 08 13 50.80 -4.35 100 69.681 2.810 7.028 5.384 1990 10 05 09 12 50.80 -4.35 100 62.934 2.169 6.786 5.426 1990 10 05 10 13 50.80 -4.35 100 57.936 1.867 6.748 5.466 1990 10 05 11 10 50.80 -4.35 100 55.702 1.762 6.880 5.489 1990 10 05 11 44 50.80 -4.35 100 55.612 1.758 6.759 5.509 1990 10 05 12 13 50.80 -4.35 100 56.290 1.788 6.826 5.549 1990 10 05 13 10 50.80 -4.35 100 59.509 1.952 6.770 5.593 1990 10 05 14 13 50.80 -4.35 100 65.595 2.381 6.775 6.343 1990 10 06 08 13 50.80 -4.35 100 69.974 2.848 6.826 6.382 1990 10 06 09 10 50.80 -4.35 100 63.483 2.210 6.737 6.426 1990 10 06 10 13 50.80 -4.35 100 58.295 1.886 6.732 6.489 1990 10 06 11 44 50.80 -4.35 100 55.997 1.775 6.480 6.509 1990 10 06 12 13 50.80 -4.35 100 56.679 1.806 6.466 6.549 1990 10 06 13 10 50.80 -4.35 100 59.895 1.974 6.654 7.340 1990 10 07 08 09 50.80 -4.35 100 70.779 2.955 7.476 7.343 1990 10 07 08 13 50.80 -4.35 100 70.254 2.884 7.490 7.385 1990 10 07 09 14 50.80 -4.35 100 63.389 2.203 7.535 7.428 1990 10 07 10 16 50.80 -4.35 100 58.511 1.897 7.705 7.466 1990 10 07 11 10 50.80 -4.35 100 56.459 1.796 7.836 7.489 1990 10 07 11 44 50.80 -4.35 100 56.378 1.792 7.914 7.509 1990 10 07 12 13 50.80 -4.35 100 57.073 1.825 8.027 7.549 1990 10 07 13 10 50.80 -4.35 100 60.283 1.996 7.890 8.344 1990 10 08 08 16 50.80 -4.35 100 70.276 2.887 7.619 8.382 1990 10 08 09 10 50.80 -4.35 100 64.124 2.259 7.328 8.385 1990 10 08 09 14 50.80 -4.35 100 63.709 2.227 7.428 8.428 1990 10 08 10 16 50.80 -4.35 100 58.861 1.916 7.339 8.466 1990 10 08 11 10 50.80 -4.35 100 56.835 1.813 7.549 8.486 1990 10 08 11 39 50.80 -4.35 100 56.721 1.808 7.565 8.489 1990 10 08 11 43 50.80 -4.35 100 56.761 1.810 7.428 8.509 1990 10 08 12 13 50.80 -4.35 100 57.459 1.844 7.388 8.549 1990 10 08 13 10 50.80 -4.35 100 60.669 2.020 7.559 8.593 1990 10 08 14 13 50.80 -4.35 100 66.719 2.485 7.541 8.632 1990 10 08 15 10 50.80 -4.35 100 73.741 3.436 7.648 9.340 1990 10 09 08 09 50.80 -4.35 100 71.365 3.039 7.143 9.343 1990 10 09 08 13 50.80 -4.35 100 70.841 2.964 7.175 9.385 1990 10 09 09 14 50.80 -4.35 100 64.000 2.249 7.213 9.388 1990 10 09 09 19 50.80 -4.35 100 63.606 2.219 7.084 9.423 1990 10 09 10 09 50.80 -4.35 100 59.600 1.957 7.089 9.426 1990 10 09 10 13 50.80 -4.35 100 59.348 1.943 7.060 9.466 1990 10 09 11 10 50.80 -4.35 100 57.211 1.831 7.084 9.468 1990 10 09 11 14 50.80 -4.35 100 57.160 1.829 7.307 9.489 1990 10 09 11 43 50.80 -4.35 100 57.140 1.828 7.089 9.509 1990 10 09 12 13 50.80 -4.35 100 57.846 1.863 6.977 9.549 1990 10 09 13 10 50.80 -4.35 100 61.052 2.043 6.985 9.593 1990 10 09 14 13 50.80 -4.35 100 67.089 2.521 7.065 10.343 1990 10 10 08 13 50.80 -4.35 100 71.150 3.008 7.294 10.382 1990 10 10 09 10 50.80 -4.35 100 64.771 2.311 7.202 10.427 1990 10 10 10 14 50.80 -4.35 100 59.677 1.961 6.987 10.430 1990 10 10 10 18 50.80 -4.35 100 59.441 1.948 7.143 10.466 1990 10 10 11 10 50.80 -4.35 100 57.585 1.850 7.135 10.488 1990 10 10 11 43 50.80 -4.35 100 57.519 1.847 7.114 10.509 1990 10 10 12 13 50.80 -4.35 100 58.231 1.883 7.132 10.552 1990 10 10 13 14 50.80 -4.35 100 61.790 2.091 7.162 10.598 1990 10 10 14 20 50.80 -4.35 100 68.229 2.640 7.191 10.632 1990 10 10 15 10 50.80 -4.35 100 74.456 3.577 7.299 11.343 1990 10 11 08 13 50.80 -4.35 100 71.437 3.050 7.181 11.382 1990 10 11 09 10 50.80 -4.35 100 65.092 2.337 7.242 11.385 1990 10 11 09 14 50.80 -4.35 100 64.690 2.304 7.242 11.423 1990 10 11 10 09 50.80 -4.35 100 60.305 1.998 7.226 11.426 1990 10 11 10 13 50.80 -4.35 100 60.058 1.983 7.154 11.466 1990 10 11 11 10 50.80 -4.35 100 57.959 1.869 7.092 11.491 1990 10 11 11 47 50.80 -4.35 100 57.957 1.869 7.068 11.509 1990 10 11 12 13 50.80 -4.35 100 58.615 1.903 7.071 11.550 1990 10 11 13 12 50.80 -4.35 100 61.988 2.104 7.049 11.593 1990 10 11 14 13 50.80 -4.35 100 67.819 2.596 7.151 12.342 1990 10 12 08 11 50.80 -4.35 100 71.955 3.129 7.087 12.345 1990 10 12 08 16 50.80 -4.35 100 71.439 3.050 7.033 12.382 1990 10 12 09 10 50.80 -4.35 100 65.412 2.365 6.990 12.385 1990 10 12 09 14 50.80 -4.35 100 65.012 2.331 7.041 12.423 1990 10 12 10 09 50.80 -4.35 100 60.651 2.018 7.060 12.426 1990 10 12 10 13 50.80 -4.35 100 60.406 2.004 6.944 12.466 1990 10 12 11 10 50.80 -4.35 100 58.331 1.888 6.834 12.488 1990 10 12 11 42 50.80 -4.35 100 58.273 1.885 6.778 12.513 1990 10 12 12 18 50.80 -4.35 100 59.167 1.933 6.848 12.549 1990 10 12 13 10 50.80 -4.35 100 62.191 2.118 6.821 12.593 1990 10 12 14 13 50.80 -4.35 100 68.191 2.636 6.877 13.342 1990 10 13 08 11 50.80 -4.35 100 72.251 3.175 7.251 13.382 1990 10 13 09 10 50.80 -4.35 100 65.734 2.393 7.259 13.385 1990 10 13 09 14 50.80 -4.35 100 65.336 2.358 7.331 13.423 1990 10 13 10 09 50.80 -4.35 100 61.001 2.040 7.385 13.426 1990 10 13 10 13 50.80 -4.35 100 60.757 2.025 7.251 13.465 1990 10 13 11 10 50.80 -4.35 100 58.702 1.907 7.240 13.488 1990 10 13 11 42 50.80 -4.35 100 58.647 1.904 7.210 13.549 1990 10 13 13 10 50.80 -4.35 100 62.569 2.144 7.377 13.593 1990 10 13 14 13 50.80 -4.35 100 68.553 2.676 7.277 13.632 1990 10 13 15 10 50.80 -4.35 100 75.504 3.805 7.173 14.344 1990 10 14 08 15 50.80 -4.35 100 72.049 3.143 7.028 14.382 1990 10 14 09 10 50.80 -4.35 100 66.053 2.422 6.960 14.426 1990 10 14 10 13 50.80 -4.35 100 61.116 2.047 6.888 14.465 1990 10 14 11 10 50.80 -4.35 100 59.071 1.927 6.732 14.488 1990 10 14 11 42 50.80 -4.35 100 59.020 1.924 6.912 14.509 1990 10 14 12 13 50.80 -4.35 100 59.755 1.966 6.743 14.549 1990 10 14 13 10 50.80 -4.35 100 62.943 2.170 6.934 14.593 1990 10 14 14 13 50.80 -4.35 100 68.904 2.717 6.901 14.632 1990 10 14 15 10 50.80 -4.35 100 75.852 3.887 7.148 15.382 1990 10 15 09 10 50.80 -4.35 100 66.374 2.452 6.775 15.385 1990 10 15 09 14 50.80 -4.35 100 65.950 2.413 6.805 15.426 1990 10 15 10 13 50.80 -4.35 100 61.462 2.069 6.740 15.465 1990 10 15 11 10 50.80 -4.35 100 59.438 1.948 6.821 15.488 1990 10 15 11 42 50.80 -4.35 100 59.390 1.945 6.751 15.509 1990 10 15 12 13 50.80 -4.35 100 60.130 1.987 6.794 15.549 1990 10 15 13 10 50.80 -4.35 100 63.313 2.197 6.821 15.593 1990 10 15 14 13 50.80 -4.35 100 69.262 2.759 6.837 15.632 1990 10 15 15 10 50.80 -4.35 100 76.197 3.972 6.947 16.343 1990 10 16 08 13 50.80 -4.35 100 72.911 3.286 7.406 16.382 1990 10 16 09 10 50.80 -4.35 100 66.696 2.482 7.216 16.385 1990 10 16 09 15 50.80 -4.35 100 66.241 2.439 7.092 16.426 1990 10 16 10 13 50.80 -4.35 100 61.810 2.092 7.315 16.465 1990 10 16 11 10 50.80 -4.35 100 59.804 1.968 7.296 16.487 1990 10 16 11 41 50.80 -4.35 100 59.759 1.966 7.326 16.510 1990 10 16 12 13 50.80 -4.35 100 60.506 2.010 7.377 16.549 1990 10 16 13 10 50.80 -4.35 100 63.680 2.224 7.476 16.593 1990 10 16 14 13 50.80 -4.35 100 69.618 2.803 7.097 16.632 1990 10 16 15 10 50.80 -4.35 100 76.533 4.058 6.960 17.343 1990 10 17 08 13 50.80 -4.35 100 73.208 3.338 7.240 17.382 1990 10 17 09 10 50.80 -4.35 100 67.014 2.513 7.302 17.426 1990 10 17 10 13 50.80 -4.35 100 62.158 2.115 7.302 17.465 1990 10 17 11 10 50.80 -4.35 100 60.167 1.990 7.452 17.487 1990 10 17 11 41 50.80 -4.35 100 60.125 1.987 7.355 17.510 1990 10 17 12 13 50.80 -4.35 100 60.876 2.032 7.404 17.549 1990 10 17 13 10 50.80 -4.35 100 64.046 2.253 7.433 17.593 1990 10 17 14 13 50.80 -4.35 100 69.971 2.847 7.541 18.343 1990 10 18 08 13 50.80 -4.35 100 73.503 3.391 8.113 18.426 1990 10 18 10 13 50.80 -4.35 100 62.501 2.139 7.807 18.465 1990 10 18 11 10 50.80 -4.35 100 60.529 2.011 7.643 18.487 1990 10 18 11 41 50.80 -4.35 100 60.489 2.009 7.637 18.510 1990 10 18 12 13 50.80 -4.35 100 61.243 2.055 7.608 18.549 1990 10 18 13 10 50.80 -4.35 100 64.410 2.281 7.637 18.593 1990 10 18 14 13 50.80 -4.35 100 70.316 2.892 7.675 18.632 1990 10 18 15 10 50.80 -4.35 100 77.204 4.242 7.667 19.344 1990 10 19 08 15 50.80 -4.35 100 73.526 3.396 7.457 19.382 1990 10 19 09 10 50.80 -4.35 100 67.648 2.578 7.234 19.385 1990 10 19 09 14 50.80 -4.35 100 67.258 2.538 7.267 19.424 1990 10 19 10 10 50.80 -4.35 100 63.036 2.177 7.197 19.426 1990 10 19 10 13 50.80 -4.35 100 62.838 2.163 7.414 19.465 1990 10 19 11 10 50.80 -4.35 100 60.889 2.033 7.328 19.487 1990 10 19 11 41 50.80 -4.35 100 60.852 2.031 7.350 19.510 1990 10 19 12 13 50.80 -4.35 100 61.609 2.079 7.237 19.549 1990 10 19 13 10 50.80 -4.35 100 64.768 2.310 7.175 19.593 1990 10 19 14 13 50.80 -4.35 100 70.666 2.940 7.232 20.343 1990 10 20 08 13 50.80 -4.35 100 74.091 3.503 8.035 20.382 1990 10 20 09 10 50.80 -4.35 100 67.965 2.611 7.842 20.426 1990 10 20 10 13 50.80 -4.35 100 63.188 2.188 7.831 20.465 1990 10 20 11 10 50.80 -4.35 100 61.246 2.056 7.855 20.468 1990 10 20 11 14 50.80 -4.35 100 61.199 2.053 7.809 20.487 1990 10 20 11 41 50.80 -4.35 100 61.211 2.053 7.871 20.510 1990 10 20 12 13 50.80 -4.35 100 61.971 2.103 7.815 20.549 1990 10 20 13 10 50.80 -4.35 100 65.124 2.340 7.914 21.426 1990 10 21 10 13 50.80 -4.35 100 63.528 2.213 7.592 21.465 1990 10 21 11 10 50.80 -4.35 100 61.601 2.078 7.745 21.484 1990 10 21 11 36 50.80 -4.35 100 61.531 2.074 7.578 21.487 1990 10 21 11 41 50.80 -4.35 100 61.569 2.076 7.729 21.510 1990 10 21 12 13 50.80 -4.35 100 62.330 2.127 7.632 21.549 1990 10 21 13 10 50.80 -4.35 100 65.477 2.371 7.729 21.593 1990 10 21 14 13 50.80 -4.35 100 71.346 3.037 7.565 23.425 1990 10 23 10 11 50.80 -4.35 100 64.297 2.272 7.565 23.428 1990 10 23 10 15 50.80 -4.35 100 64.076 2.255 7.449 23.465 1990 10 23 11 10 50.80 -4.35 100 62.304 2.125 7.439 23.468 1990 10 23 11 14 50.80 -4.35 100 62.258 2.122 7.616 23.484 1990 10 23 11 36 50.80 -4.35 100 62.237 2.121 7.621 23.487 1990 10 23 11 40 50.80 -4.35 100 62.275 2.123 7.431 23.507 1990 10 23 12 09 50.80 -4.35 100 62.905 2.167 7.726 23.510 1990 10 23 12 13 50.80 -4.35 100 63.044 2.177 7.465 23.549 1990 10 23 13 10 50.80 -4.35 100 66.165 2.432 7.385 23.593 1990 10 23 14 13 50.80 -4.35 100 71.998 3.135 7.500 24.382 1990 10 24 09 10 50.80 -4.35 100 69.218 2.753 7.619 24.385 1990 10 24 09 14 50.80 -4.35 100 68.841 2.709 7.750 24.423 1990 10 24 10 09 50.80 -4.35 100 64.753 2.309 7.812 24.426 1990 10 24 10 13 50.80 -4.35 100 64.527 2.291 7.670 24.465 1990 10 24 11 10 50.80 -4.35 100 62.651 2.149 7.887 24.483 1990 10 24 11 36 50.80 -4.35 100 62.584 2.145 7.981 24.510 1990 10 24 12 13 50.80 -4.35 100 63.390 2.203 7.863 24.549 1990 10 24 13 10 50.80 -4.35 100 66.510 2.465 7.756 24.593 1990 10 24 14 13 50.80 -4.35 100 72.329 3.189 7.852 25.382 1990 10 25 09 10 50.80 -4.35 100 69.528 2.791 7.624 25.426 1990 10 25 10 13 50.80 -4.35 100 64.869 2.319 7.705 25.549 1990 10 25 13 10 50.80 -4.35 100 66.847 2.497 7.804 26.385 1990 10 26 09 14 50.80 -4.35 100 69.463 2.783 7.973 26.426 1990 10 26 10 13 50.80 -4.35 100 65.199 2.347 7.866 26.465 1990 10 26 11 10 50.80 -4.35 100 63.337 2.199 7.887 26.486 1990 10 26 11 40 50.80 -4.35 100 63.311 2.197 7.895 26.510 1990 10 26 12 13 50.80 -4.35 100 64.081 2.255 7.973 26.549 1990 10 26 13 10 50.80 -4.35 100 67.183 2.530 8.124 26.593 1990 10 26 14 13 50.80 -4.35 100 72.971 3.297 8.304 27.382 1990 10 27 09 10 50.80 -4.35 100 70.141 2.869 8.758 27.465 1990 10 27 11 10 50.80 -4.35 100 63.675 2.224 8.559 27.486 1990 10 27 11 40 50.80 -4.35 100 63.651 2.222 8.626 27.510 1990 10 27 12 13 50.80 -4.35 100 64.420 2.282 8.508 27.549 1990 10 27 13 10 50.80 -4.35 100 67.514 2.564 8.629 28.382 1990 10 28 09 10 50.80 -4.35 100 70.444 2.909 8.760 28.426 1990 10 28 10 13 50.80 -4.35 100 65.849 2.403 8.672 28.465 1990 10 28 11 10 50.80 -4.35 100 64.011 2.250 8.545 28.486 1990 10 28 11 39 50.80 -4.35 100 63.987 2.248 8.642 29.385 1990 10 29 09 14 50.80 -4.35 100 70.379 2.900 8.328 29.468 1990 10 29 11 13 50.80 -4.35 100 64.305 2.273 8.000 29.483 1990 10 29 11 35 50.80 -4.35 100 64.285 2.271 7.930 29.510 1990 10 29 12 13 50.80 -4.35 100 65.092 2.337 7.748 29.552 1990 10 29 13 14 50.80 -4.35 100 68.474 2.667 7.842 29.593 1990 10 29 14 13 50.80 -4.35 100 73.906 3.468 8.059 30.382 1990 10 30 09 10 50.80 -4.35 100 71.050 2.993 7.455 30.385 1990 10 30 09 14 50.80 -4.35 100 70.682 2.942 7.629 30.423 1990 10 30 10 09 50.80 -4.35 100 66.699 2.482 7.562 30.426 1990 10 30 10 13 50.80 -4.35 100 66.479 2.462 7.460 30.465 1990 10 30 11 10 50.80 -4.35 100 64.672 2.302 7.517 30.468 1990 10 30 11 14 50.80 -4.35 100 64.629 2.299 7.608 30.483 1990 10 30 11 35 50.80 -4.35 100 64.614 2.298 7.643 30.486 1990 10 30 11 39 50.80 -4.35 100 64.650 2.301 7.468 30.510 1990 10 30 12 13 50.80 -4.35 100 65.419 2.365 7.804 30.549 1990 10 30 13 10 50.80 -4.35 100 68.483 2.668 7.715 30.593 1990 10 30 14 13 50.80 -4.35 100 74.209 3.527 7.962 31.382 1990 10 31 09 10 50.80 -4.35 100 71.347 3.036 7.780 31.486 1990 10 31 11 39 50.80 -4.35 100 64.975 2.328 8.054 31.509 1990 10 31 12 13 50.80 -4.35 100 65.740 2.394 8.126 31.549 1990 10 31 13 10 50.80 -4.35 100 68.798 2.704 8.121