De Backer H. BREWER UCCLE TOTALCOL 01-FEB-1990 00:00:0028-FEB-1990 23:59:590001 30 1010 Hugo De Backer Uccle; Royal Meteorological Institute Belgium Brewer Spectrophotometer Instrument No.16 NDSC 1 1 1990 02 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 1.421 1990 02 01 10 06 50.80 -4.35 100 72.071 3.147 7.960 1.460 1990 02 01 11 02 50.80 -4.35 100 68.921 2.718 7.965 1.501 1990 02 01 12 02 50.80 -4.35 100 67.904 2.605 7.952 1.546 1990 02 01 13 06 50.80 -4.35 100 69.610 2.801 7.820 2.421 1990 02 02 10 06 50.80 -4.35 100 71.821 3.108 9.478 2.463 1990 02 02 11 06 50.80 -4.35 100 68.490 2.669 9.222 2.499 1990 02 02 11 58 50.80 -4.35 100 67.606 2.573 9.687 2.546 1990 02 02 13 06 50.80 -4.35 100 69.342 2.768 10.380 2.585 1990 02 02 14 01 50.80 -4.35 100 72.959 3.294 10.431 3.460 1990 02 03 11 02 50.80 -4.35 100 68.358 2.654 8.938 3.502 1990 02 03 12 02 50.80 -4.35 100 67.325 2.544 9.118 3.512 1990 02 03 12 17 50.80 -4.35 100 67.472 2.559 9.150 3.588 1990 02 03 14 06 50.80 -4.35 100 73.039 3.308 9.609 4.418 1990 02 04 10 02 50.80 -4.35 100 71.569 3.069 7.989 4.421 1990 02 04 10 06 50.80 -4.35 100 71.257 3.023 8.022 4.463 1990 02 04 11 06 50.80 -4.35 100 67.916 2.606 7.936 4.499 1990 02 04 11 58 50.80 -4.35 100 67.018 2.514 7.895 4.502 1990 02 04 12 02 50.80 -4.35 100 67.029 2.515 7.949 4.510 1990 02 04 12 14 50.80 -4.35 100 67.123 2.524 7.898 4.513 1990 02 04 12 18 50.80 -4.35 100 67.180 2.530 7.992 4.543 1990 02 04 13 02 50.80 -4.35 100 68.555 2.676 7.855 4.585 1990 02 04 14 02 50.80 -4.35 100 72.416 3.202 7.809 4.587 1990 02 04 14 05 50.80 -4.35 100 72.730 3.255 8.089 5.418 1990 02 05 10 02 50.80 -4.35 100 71.294 3.029 6.259 5.421 1990 02 05 10 06 50.80 -4.35 100 70.982 2.984 6.173 5.460 1990 02 05 11 02 50.80 -4.35 100 67.775 2.591 6.173 5.463 1990 02 05 11 06 50.80 -4.35 100 67.619 2.575 6.289 5.499 1990 02 05 11 58 50.80 -4.35 100 66.716 2.484 6.345 5.502 1990 02 05 12 02 50.80 -4.35 100 66.727 2.485 6.203 5.510 1990 02 05 12 14 50.80 -4.35 100 66.821 2.494 6.388 5.513 1990 02 05 12 18 50.80 -4.35 100 66.878 2.500 6.254 5.543 1990 02 05 13 02 50.80 -4.35 100 68.255 2.643 6.305 5.546 1990 02 05 13 06 50.80 -4.35 100 68.451 2.665 6.415 5.585 1990 02 05 14 02 50.80 -4.35 100 72.129 3.156 6.509 5.588 1990 02 05 14 06 50.80 -4.35 100 72.477 3.213 6.340 6.418 1990 02 06 10 01 50.80 -4.35 100 71.029 2.990 7.132 6.421 1990 02 06 10 06 50.80 -4.35 100 70.693 2.943 7.406 6.460 1990 02 06 11 02 50.80 -4.35 100 67.477 2.560 7.253 6.463 1990 02 06 11 06 50.80 -4.35 100 67.323 2.544 7.237 6.499 1990 02 06 11 58 50.80 -4.35 100 66.410 2.455 7.334 6.502 1990 02 06 12 02 50.80 -4.35 100 66.421 2.456 7.299 6.510 1990 02 06 12 14 50.80 -4.35 100 66.515 2.465 7.275 6.513 1990 02 06 12 18 50.80 -4.35 100 66.573 2.470 7.299 6.543 1990 02 06 13 02 50.80 -4.35 100 67.951 2.610 7.226 6.546 1990 02 06 13 06 50.80 -4.35 100 68.148 2.631 7.326 6.587 1990 02 06 14 05 50.80 -4.35 100 72.161 3.162 7.143 7.421 1990 02 07 10 06 50.80 -4.35 100 70.406 2.904 7.809 7.460 1990 02 07 11 02 50.80 -4.35 100 67.173 2.529 7.667 7.502 1990 02 07 12 02 50.80 -4.35 100 66.110 2.427 7.498 7.513 1990 02 07 12 18 50.80 -4.35 100 66.259 2.441 7.503 7.543 1990 02 07 13 02 50.80 -4.35 100 67.643 2.577 7.517 7.588 1990 02 07 14 06 50.80 -4.35 100 71.874 3.116 7.347 8.460 1990 02 08 11 02 50.80 -4.35 100 66.865 2.499 7.054 8.502 1990 02 08 12 02 50.80 -4.35 100 65.795 2.399 7.071 8.513 1990 02 08 12 18 50.80 -4.35 100 65.946 2.412 7.146 8.544 1990 02 08 13 02 50.80 -4.35 100 67.334 2.545 7.371 9.418 1990 02 09 10 02 50.80 -4.35 100 70.123 2.867 8.862 9.421 1990 02 09 10 06 50.80 -4.35 100 69.805 2.826 8.779 9.463 1990 02 09 11 06 50.80 -4.35 100 66.394 2.454 9.080 9.588 1990 02 09 14 06 50.80 -4.35 100 71.283 3.027 9.080 10.377 1990 02 10 09 02 50.80 -4.35 100 75.439 3.789 8.586 10.421 1990 02 10 10 05 50.80 -4.35 100 69.531 2.792 8.508 10.460 1990 02 10 11 02 50.80 -4.35 100 66.232 2.438 8.309 10.502 1990 02 10 12 02 50.80 -4.35 100 65.153 2.343 8.188 10.513 1990 02 10 12 18 50.80 -4.35 100 65.303 2.356 8.288 10.544 1990 02 10 13 02 50.80 -4.35 100 66.701 2.483 8.320 10.588 1990 02 10 14 06 50.80 -4.35 100 70.972 2.983 8.368 11.380 1990 02 11 09 06 50.80 -4.35 100 74.732 3.634 9.722 11.418 1990 02 11 10 01 50.80 -4.35 100 69.533 2.792 9.985 11.421 1990 02 11 10 06 50.80 -4.35 100 69.213 2.753 9.722 11.513 1990 02 11 12 18 50.80 -4.35 100 64.977 2.328 10.069 12.377 1990 02 12 09 02 50.80 -4.35 100 74.849 3.659 11.654 12.418 1990 02 12 10 01 50.80 -4.35 100 69.221 2.754 12.801 12.510 1990 02 12 12 13 50.80 -4.35 100 64.585 2.295 12.819 13.418 1990 02 13 10 01 50.80 -4.35 100 68.902 2.716 9.827 13.421 1990 02 13 10 06 50.80 -4.35 100 68.580 2.679 9.969 13.463 1990 02 13 11 06 50.80 -4.35 100 65.095 2.338 9.703 13.502 1990 02 13 12 02 50.80 -4.35 100 64.161 2.262 9.964 13.513 1990 02 13 12 18 50.80 -4.35 100 64.313 2.274 9.964 13.543 1990 02 13 13 02 50.80 -4.35 100 65.726 2.392 10.047 14.377 1990 02 14 09 02 50.80 -4.35 100 74.231 3.531 8.607 14.421 1990 02 14 10 05 50.80 -4.35 100 68.267 2.644 8.661 14.460 1990 02 14 11 02 50.80 -4.35 100 64.918 2.323 8.629 14.502 1990 02 14 12 02 50.80 -4.35 100 63.823 2.235 8.551 14.513 1990 02 14 12 18 50.80 -4.35 100 63.975 2.247 8.604 14.588 1990 02 14 14 06 50.80 -4.35 100 69.732 2.817 8.602 14.627 1990 02 14 15 02 50.80 -4.35 100 75.497 3.803 8.768 15.460 1990 02 15 11 02 50.80 -4.35 100 64.579 2.295 9.212 15.543 1990 02 15 13 02 50.80 -4.35 100 65.062 2.335 9.437 16.380 1990 02 16 09 07 50.80 -4.35 100 73.153 3.328 8.610 16.418 1990 02 16 10 01 50.80 -4.35 100 67.925 2.607 8.559 16.421 1990 02 16 10 06 50.80 -4.35 100 67.600 2.573 8.575 16.460 1990 02 16 11 02 50.80 -4.35 100 64.238 2.268 8.357 16.502 1990 02 16 12 02 50.80 -4.35 100 63.136 2.184 8.449 16.510 1990 02 16 12 14 50.80 -4.35 100 63.235 2.191 8.486 16.513 1990 02 16 12 18 50.80 -4.35 100 63.295 2.196 8.470 16.543 1990 02 16 13 02 50.80 -4.35 100 64.727 2.307 8.314 16.588 1990 02 16 14 06 50.80 -4.35 100 69.098 2.739 8.282 17.377 1990 02 17 09 02 50.80 -4.35 100 73.289 3.352 7.602 17.421 1990 02 17 10 05 50.80 -4.35 100 67.271 2.539 7.452 17.460 1990 02 17 11 02 50.80 -4.35 100 63.892 2.241 7.355 17.502 1990 02 17 12 02 50.80 -4.35 100 62.787 2.159 7.363 17.543 1990 02 17 13 02 50.80 -4.35 100 64.388 2.280 7.310 17.588 1990 02 17 14 06 50.80 -4.35 100 68.785 2.703 7.444 17.627 1990 02 17 15 02 50.80 -4.35 100 74.602 3.607 7.756 18.377 1990 02 18 09 02 50.80 -4.35 100 72.968 3.296 9.639 18.421 1990 02 18 10 05 50.80 -4.35 100 66.934 2.505 9.891 18.460 1990 02 18 11 02 50.80 -4.35 100 63.542 2.214 9.961 18.512 1990 02 18 12 17 50.80 -4.35 100 62.591 2.145 10.235 19.421 1990 02 19 10 05 50.80 -4.35 100 66.590 2.472 9.534 19.460 1990 02 19 11 02 50.80 -4.35 100 63.188 2.188 9.196 19.502 1990 02 19 12 02 50.80 -4.35 100 62.081 2.110 8.948 19.512 1990 02 19 12 17 50.80 -4.35 100 62.236 2.121 8.900 19.627 1990 02 19 15 02 50.80 -4.35 100 73.998 3.485 8.790 20.377 1990 02 20 09 02 50.80 -4.35 100 72.315 3.186 7.154 20.421 1990 02 20 10 05 50.80 -4.35 100 66.244 2.440 7.200 20.460 1990 02 20 11 02 50.80 -4.35 100 62.832 2.162 7.060 20.463 1990 02 20 11 06 50.80 -4.35 100 62.667 2.150 7.202 20.499 1990 02 20 11 58 50.80 -4.35 100 61.712 2.086 7.213 20.502 1990 02 20 12 02 50.80 -4.35 100 61.724 2.086 7.063 20.510 1990 02 20 12 13 50.80 -4.35 100 61.823 2.093 7.208 20.512 1990 02 20 12 17 50.80 -4.35 100 61.884 2.097 7.079 20.543 1990 02 20 13 02 50.80 -4.35 100 63.359 2.200 7.116 20.546 1990 02 20 13 06 50.80 -4.35 100 63.568 2.216 7.259 20.588 1990 02 20 14 06 50.80 -4.35 100 67.817 2.596 7.189 20.627 1990 02 20 15 02 50.80 -4.35 100 73.696 3.428 7.285 20.630 1990 02 20 15 06 50.80 -4.35 100 74.184 3.522 7.178 21.377 1990 02 21 09 02 50.80 -4.35 100 71.982 3.133 8.352 21.421 1990 02 21 10 05 50.80 -4.35 100 65.893 2.407 8.438 21.460 1990 02 21 11 02 50.80 -4.35 100 62.472 2.137 8.403 21.502 1990 02 21 12 02 50.80 -4.35 100 61.363 2.063 8.376 21.543 1990 02 21 13 02 50.80 -4.35 100 63.012 2.175 8.312 21.546 1990 02 21 13 06 50.80 -4.35 100 63.225 2.191 8.159 21.630 1990 02 21 15 06 50.80 -4.35 100 73.880 3.462 8.207 22.377 1990 02 22 09 02 50.80 -4.35 100 71.644 3.081 8.443 22.380 1990 02 22 09 07 50.80 -4.35 100 71.180 3.012 8.519 22.418 1990 02 22 10 02 50.80 -4.35 100 65.856 2.404 8.572 22.421 1990 02 22 10 06 50.80 -4.35 100 65.526 2.375 8.476 22.460 1990 02 22 11 02 50.80 -4.35 100 62.108 2.112 8.559 22.463 1990 02 22 11 06 50.80 -4.35 100 61.945 2.101 8.677 22.499 1990 02 22 11 58 50.80 -4.35 100 60.988 2.039 8.750 22.502 1990 02 22 12 02 50.80 -4.35 100 61.000 2.040 8.650 22.509 1990 02 22 12 13 50.80 -4.35 100 61.101 2.046 8.787 22.512 1990 02 22 12 17 50.80 -4.35 100 61.162 2.050 8.656 22.543 1990 02 22 13 02 50.80 -4.35 100 62.661 2.150 8.771 22.546 1990 02 22 13 06 50.80 -4.35 100 62.872 2.165 8.967 22.585 1990 02 22 14 02 50.80 -4.35 100 66.800 2.492 8.857 22.588 1990 02 22 14 06 50.80 -4.35 100 67.171 2.529 8.693 22.627 1990 02 22 15 02 50.80 -4.35 100 73.084 3.316 8.712 22.630 1990 02 22 15 06 50.80 -4.35 100 73.589 3.407 8.822 23.380 1990 02 23 09 07 50.80 -4.35 100 70.841 2.964 8.629 23.418 1990 02 23 10 01 50.80 -4.35 100 65.508 2.373 8.712 23.421 1990 02 23 10 06 50.80 -4.35 100 65.174 2.344 8.664 23.460 1990 02 23 11 02 50.80 -4.35 100 61.741 2.087 8.717 23.463 1990 02 23 11 06 50.80 -4.35 100 61.575 2.077 8.819 23.499 1990 02 23 11 57 50.80 -4.35 100 60.622 2.017 8.860 23.501 1990 02 23 12 02 50.80 -4.35 100 60.634 2.017 8.817 23.509 1990 02 23 12 13 50.80 -4.35 100 60.735 2.024 8.884 23.512 1990 02 23 12 17 50.80 -4.35 100 60.797 2.027 8.790 23.543 1990 02 23 13 02 50.80 -4.35 100 62.310 2.126 8.827 23.546 1990 02 23 13 06 50.80 -4.35 100 62.521 2.140 8.857 23.585 1990 02 23 14 02 50.80 -4.35 100 66.475 2.461 8.991 23.588 1990 02 23 14 06 50.80 -4.35 100 66.844 2.497 8.919 23.627 1990 02 23 15 02 50.80 -4.35 100 72.781 3.264 8.712 24.377 1990 02 24 09 02 50.80 -4.35 100 70.962 2.981 8.301 24.421 1990 02 24 10 05 50.80 -4.35 100 64.822 2.315 8.083 24.460 1990 02 24 11 02 50.80 -4.35 100 61.371 2.063 8.239 24.463 1990 02 24 11 06 50.80 -4.35 100 61.208 2.053 8.218 24.499 1990 02 24 11 58 50.80 -4.35 100 60.255 1.995 8.105 24.501 1990 02 24 12 01 50.80 -4.35 100 60.266 1.995 8.008 24.512 1990 02 24 12 17 50.80 -4.35 100 60.427 2.005 8.024 24.546 1990 02 24 13 06 50.80 -4.35 100 62.170 2.116 8.180 24.585 1990 02 24 14 02 50.80 -4.35 100 66.140 2.430 8.199 24.588 1990 02 24 14 06 50.80 -4.35 100 66.512 2.465 8.177 24.627 1990 02 24 15 02 50.80 -4.35 100 72.475 3.213 8.408 25.421 1990 02 25 10 05 50.80 -4.35 100 64.463 2.286 9.367 25.460 1990 02 25 11 02 50.80 -4.35 100 61.001 2.040 9.529 25.501 1990 02 25 12 01 50.80 -4.35 100 59.895 1.974 9.311 25.512 1990 02 25 12 16 50.80 -4.35 100 60.054 1.983 9.273 25.543 1990 02 25 13 02 50.80 -4.35 100 61.600 2.078 9.316 26.421 1990 02 26 10 05 50.80 -4.35 100 64.095 2.256 9.233 26.460 1990 02 26 11 02 50.80 -4.35 100 60.627 2.017 9.147 26.543 1990 02 26 13 02 50.80 -4.35 100 61.243 2.055 9.389 27.460 1990 02 27 11 02 50.80 -4.35 100 60.250 1.994 10.152 27.501 1990 02 27 12 01 50.80 -4.35 100 59.147 1.931 9.891 27.512 1990 02 27 12 16 50.80 -4.35 100 59.312 1.941 9.859 27.585 1990 02 27 14 02 50.80 -4.35 100 65.173 2.344 10.308 28.511 1990 02 28 12 16 50.80 -4.35 100 58.932 1.920 9.007 28.587 1990 02 28 14 06 50.80 -4.35 100 65.172 2.344 9.040