De Backer H. BREWER UCCLE TOTALCOL 01-JAN-1999 00:00:0031-JAN-1999 23:59:590001 30 1010 Hugo De Backer Uccle; Royal Meteorological Institute Belgium Brewer Spectrophotometer Instrument No.16 NDSC 1 1 1999 01 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 1.546 1999 01 01 13 06 50.80 -4.35 100 75.896 3.897 10.165 2.418 1999 01 02 10 02 50.80 -4.35 100 77.214 4.244 8.159 2.460 1999 01 02 11 02 50.80 -4.35 100 74.371 3.559 8.500 4.418 1999 01 04 10 02 50.80 -4.35 100 77.092 4.210 7.146 4.460 1999 01 04 11 02 50.80 -4.35 100 74.208 3.526 7.103 4.522 1999 01 04 12 31 50.80 -4.35 100 74.169 3.519 7.283 4.554 1999 01 04 13 18 50.80 -4.35 100 76.225 3.979 7.202 5.418 1999 01 05 10 02 50.80 -4.35 100 77.017 4.189 6.523 5.460 1999 01 05 11 02 50.80 -4.35 100 74.115 3.508 6.547 5.471 1999 01 05 11 18 50.80 -4.35 100 73.724 3.433 6.619 5.494 1999 01 05 11 51 50.80 -4.35 100 73.435 3.379 6.372 5.497 1999 01 05 11 55 50.80 -4.35 100 73.449 3.381 6.531 5.510 1999 01 05 12 14 50.80 -4.35 100 73.663 3.421 6.377 5.513 1999 01 05 12 18 50.80 -4.35 100 73.734 3.434 6.617 5.521 1999 01 05 12 30 50.80 -4.35 100 74.020 3.489 6.343 5.524 1999 01 05 12 33 50.80 -4.35 100 74.130 3.511 6.576 5.543 1999 01 05 13 02 50.80 -4.35 100 75.237 3.744 6.595 5.546 1999 01 05 13 06 50.80 -4.35 100 75.424 3.786 6.380 5.555 1999 01 05 13 18 50.80 -4.35 100 76.099 3.947 6.662 5.587 1999 01 05 14 05 50.80 -4.35 100 79.435 4.985 6.318 6.421 1999 01 06 10 06 50.80 -4.35 100 76.686 4.098 7.447 6.463 1999 01 06 11 06 50.80 -4.35 100 73.904 3.467 7.852 6.471 1999 01 06 11 18 50.80 -4.35 100 73.618 3.413 8.056 6.474 1999 01 06 11 21 50.80 -4.35 100 73.547 3.399 7.855 6.493 1999 01 06 11 49 50.80 -4.35 100 73.316 3.357 7.903 6.496 1999 01 06 11 53 50.80 -4.35 100 73.325 3.359 8.288 6.516 1999 01 06 12 22 50.80 -4.35 100 73.699 3.428 8.038 6.527 1999 01 06 12 38 50.80 -4.35 100 74.134 3.512 8.099 6.546 1999 01 06 13 06 50.80 -4.35 100 75.288 3.755 8.102 6.555 1999 01 06 13 18 50.80 -4.35 100 75.964 3.914 8.258 7.496 1999 01 07 11 54 50.80 -4.35 100 73.202 3.337 8.314 7.512 1999 01 07 12 16 50.80 -4.35 100 73.453 3.382 8.414 7.543 1999 01 07 13 02 50.80 -4.35 100 74.962 3.683 8.347 7.554 1999 01 07 13 18 50.80 -4.35 100 75.812 3.877 8.387 8.421 1999 01 08 10 06 50.80 -4.35 100 76.503 4.050 8.707 8.463 1999 01 08 11 06 50.80 -4.35 100 73.678 3.424 8.790 8.494 1999 01 08 11 50 50.80 -4.35 100 73.063 3.312 8.814 8.509 1999 01 08 12 13 50.80 -4.35 100 73.260 3.347 8.887 8.512 1999 01 08 12 17 50.80 -4.35 100 73.325 3.359 8.728 8.520 1999 01 08 12 29 50.80 -4.35 100 73.596 3.408 8.911 8.543 1999 01 08 13 02 50.80 -4.35 100 74.814 3.651 8.846 8.546 1999 01 08 13 06 50.80 -4.35 100 75.000 3.691 8.897 11.460 1999 01 11 11 02 50.80 -4.35 100 73.402 3.373 7.774 11.462 1999 01 11 11 05 50.80 -4.35 100 73.294 3.353 7.793 11.474 1999 01 11 11 21 50.80 -4.35 100 72.903 3.284 7.825 11.494 1999 01 11 11 52 50.80 -4.35 100 72.630 3.238 7.957 11.497 1999 01 11 11 55 50.80 -4.35 100 72.639 3.239 7.868 11.510 1999 01 11 12 14 50.80 -4.35 100 72.827 3.271 8.022 11.513 1999 01 11 12 18 50.80 -4.35 100 72.893 3.283 7.890 11.521 1999 01 11 12 30 50.80 -4.35 100 73.165 3.330 8.075 11.524 1999 01 11 12 34 50.80 -4.35 100 73.270 3.349 7.919 11.546 1999 01 11 13 06 50.80 -4.35 100 74.513 3.588 8.207 11.555 1999 01 11 13 18 50.80 -4.35 100 75.178 3.731 7.839 11.557 1999 01 11 13 22 50.80 -4.35 100 75.398 3.780 8.239 11.587 1999 01 11 14 05 50.80 -4.35 100 78.473 4.636 7.541 12.471 1999 01 12 11 18 50.80 -4.35 100 72.830 3.272 9.064 12.513 1999 01 12 12 18 50.80 -4.35 100 72.733 3.255 9.005 12.524 1999 01 12 12 34 50.80 -4.35 100 73.110 3.321 9.064 12.543 1999 01 12 13 02 50.80 -4.35 100 74.157 3.516 8.978 13.463 1999 01 13 11 06 50.80 -4.35 100 72.986 3.299 7.893 13.471 1999 01 13 11 18 50.80 -4.35 100 72.673 3.245 7.876 13.474 1999 01 13 11 21 50.80 -4.35 100 72.594 3.232 7.858 13.498 1999 01 13 11 56 50.80 -4.35 100 72.314 3.186 8.156 13.520 1999 01 13 12 29 50.80 -4.35 100 72.781 3.264 8.110 13.543 1999 01 13 13 02 50.80 -4.35 100 73.976 3.481 8.124 13.555 1999 01 13 13 18 50.80 -4.35 100 74.815 3.652 8.172 15.460 1999 01 15 11 02 50.80 -4.35 100 72.782 3.264 8.529 15.471 1999 01 15 11 18 50.80 -4.35 100 72.341 3.190 8.408 15.498 1999 01 15 11 57 50.80 -4.35 100 71.962 3.130 8.333 15.514 1999 01 15 12 20 50.80 -4.35 100 72.217 3.170 8.317 15.525 1999 01 15 12 35 50.80 -4.35 100 72.595 3.232 8.271 15.555 1999 01 15 13 18 50.80 -4.35 100 74.430 3.571 8.341 15.587 1999 01 15 14 05 50.80 -4.35 100 77.713 4.392 8.317 16.418 1999 01 16 10 02 50.80 -4.35 100 75.732 3.858 8.519 16.525 1999 01 16 12 36 50.80 -4.35 100 72.412 3.202 8.271 17.418 1999 01 17 10 02 50.80 -4.35 100 75.575 3.821 9.228 17.460 1999 01 17 11 02 50.80 -4.35 100 72.431 3.205 9.010 17.471 1999 01 17 11 18 50.80 -4.35 100 71.980 3.133 9.021 17.499 1999 01 17 11 58 50.80 -4.35 100 71.583 3.072 8.954 17.514 1999 01 17 12 20 50.80 -4.35 100 71.839 3.111 9.067 17.525 1999 01 17 12 36 50.80 -4.35 100 72.221 3.171 9.093 17.543 1999 01 17 13 02 50.80 -4.35 100 73.193 3.335 9.045 18.460 1999 01 18 11 02 50.80 -4.35 100 72.245 3.175 9.668 18.496 1999 01 18 11 54 50.80 -4.35 100 71.375 3.041 9.521 18.512 1999 01 18 12 17 50.80 -4.35 100 71.574 3.070 9.480 18.515 1999 01 18 12 21 50.80 -4.35 100 71.641 3.080 9.324 18.523 1999 01 18 12 33 50.80 -4.35 100 71.918 3.123 9.322 18.546 1999 01 18 13 06 50.80 -4.35 100 73.162 3.330 9.123 18.557 1999 01 18 13 22 50.80 -4.35 100 74.036 3.492 9.056 18.585 1999 01 18 14 01 50.80 -4.35 100 76.781 4.124 8.873 18.587 1999 01 18 14 05 50.80 -4.35 100 77.090 4.210 8.696 19.418 1999 01 19 10 02 50.80 -4.35 100 75.233 3.743 7.731 19.460 1999 01 19 11 02 50.80 -4.35 100 72.051 3.144 7.624 19.471 1999 01 19 11 18 50.80 -4.35 100 71.592 3.073 7.756 19.496 1999 01 19 11 54 50.80 -4.35 100 71.168 3.010 7.342 19.499 1999 01 19 11 58 50.80 -4.35 100 71.178 3.012 7.568 19.515 1999 01 19 12 21 50.80 -4.35 100 71.436 3.050 7.678 19.526 1999 01 19 12 37 50.80 -4.35 100 71.820 3.108 7.498 19.543 1999 01 19 13 02 50.80 -4.35 100 72.766 3.261 7.602 19.555 1999 01 19 13 18 50.80 -4.35 100 73.595 3.408 7.517 19.587 1999 01 19 14 05 50.80 -4.35 100 76.870 4.148 7.393 20.418 1999 01 20 10 02 50.80 -4.35 100 75.051 3.702 7.269 20.460 1999 01 20 11 02 50.80 -4.35 100 71.851 3.112 7.224 20.471 1999 01 20 11 18 50.80 -4.35 100 71.387 3.042 7.251 20.499 1999 01 20 11 59 50.80 -4.35 100 70.965 2.981 7.288 20.522 1999 01 20 12 31 50.80 -4.35 100 71.440 3.050 7.288 20.533 1999 01 20 12 47 50.80 -4.35 100 71.927 3.124 7.342 20.543 1999 01 20 13 02 50.80 -4.35 100 72.543 3.224 7.339 20.587 1999 01 20 14 05 50.80 -4.35 100 76.644 4.088 7.506 21.418 1999 01 21 10 02 50.80 -4.35 100 74.866 3.662 7.393 21.471 1999 01 21 11 18 50.80 -4.35 100 71.178 3.012 7.433 21.500 1999 01 21 11 59 50.80 -4.35 100 70.747 2.951 7.374 21.515 1999 01 21 12 22 50.80 -4.35 100 71.005 2.987 7.331 21.543 1999 01 21 13 02 50.80 -4.35 100 72.317 3.186 7.449 21.587 1999 01 21 14 05 50.80 -4.35 100 76.418 4.028 7.334 22.418 1999 01 22 10 02 50.80 -4.35 100 74.675 3.622 9.539 22.471 1999 01 22 11 18 50.80 -4.35 100 70.964 2.981 9.972 22.517 1999 01 22 12 24 50.80 -4.35 100 70.820 2.961 10.012 23.460 1999 01 23 11 02 50.80 -4.35 100 71.215 3.017 8.277 23.471 1999 01 23 11 18 50.80 -4.35 100 70.740 2.950 8.263 23.500 1999 01 23 11 59 50.80 -4.35 100 70.291 2.889 8.371 23.526 1999 01 23 12 38 50.80 -4.35 100 70.933 2.977 8.567 23.554 1999 01 23 13 18 50.80 -4.35 100 72.664 3.244 8.712 24.460 1999 01 24 11 02 50.80 -4.35 100 70.991 2.985 8.532 25.418 1999 01 25 10 02 50.80 -4.35 100 74.068 3.499 8.672 25.460 1999 01 25 11 02 50.80 -4.35 100 70.759 2.952 8.449 25.471 1999 01 25 11 18 50.80 -4.35 100 70.276 2.887 8.476 25.500 1999 01 25 12 00 50.80 -4.35 100 69.811 2.827 8.508 25.516 1999 01 25 12 22 50.80 -4.35 100 70.071 2.860 8.621 26.463 1999 01 26 11 06 50.80 -4.35 100 70.388 2.902 10.208 26.471 1999 01 26 11 18 50.80 -4.35 100 70.034 2.855 10.050 26.474 1999 01 26 11 21 50.80 -4.35 100 69.941 2.843 10.211 26.499 1999 01 26 11 58 50.80 -4.35 100 69.557 2.795 10.243 26.515 1999 01 26 12 21 50.80 -4.35 100 69.794 2.824 10.310 26.518 1999 01 26 12 25 50.80 -4.35 100 69.867 2.834 10.668 26.526 1999 01 26 12 37 50.80 -4.35 100 70.165 2.872 10.442 26.545 1999 01 26 13 05 50.80 -4.35 100 71.247 3.022 10.584 27.471 1999 01 27 11 18 50.80 -4.35 100 69.787 2.824 8.613 27.523 1999 01 27 12 33 50.80 -4.35 100 69.790 2.824 8.288 27.534 1999 01 27 12 48 50.80 -4.35 100 70.281 2.888 8.288 27.543 1999 01 27 13 02 50.80 -4.35 100 70.836 2.963 8.282 28.501 1999 01 28 12 00 50.80 -4.35 100 69.048 2.733 9.284 28.527 1999 01 28 12 39 50.80 -4.35 100 69.700 2.813 9.367 28.554 1999 01 28 13 18 50.80 -4.35 100 71.394 3.043 9.359 29.463 1999 01 29 11 06 50.80 -4.35 100 69.638 2.805 9.147 29.473 1999 01 29 11 21 50.80 -4.35 100 69.194 2.751 9.085 29.546 1999 01 29 13 06 50.80 -4.35 100 70.482 2.915 9.029 30.460 1999 01 30 11 02 50.80 -4.35 100 69.513 2.789 8.776 30.498 1999 01 30 11 57 50.80 -4.35 100 68.503 2.670 8.801 30.501 1999 01 30 12 01 50.80 -4.35 100 68.512 2.671 8.768 30.528 1999 01 30 12 39 50.80 -4.35 100 69.170 2.748 8.846 30.546 1999 01 30 13 06 50.80 -4.35 100 70.210 2.878 8.825 30.555 1999 01 30 13 18 50.80 -4.35 100 70.859 2.966 8.709 30.557 1999 01 30 13 22 50.80 -4.35 100 71.076 2.997 8.811 30.585 1999 01 30 14 01 50.80 -4.35 100 73.848 3.456 8.742 31.418 1999 01 31 10 02 50.80 -4.35 100 72.657 3.243 8.441 31.421 1999 01 31 10 06 50.80 -4.35 100 72.377 3.196 8.607 31.460 1999 01 31 11 02 50.80 -4.35 100 69.247 2.757 8.521 31.463 1999 01 31 11 06 50.80 -4.35 100 69.109 2.740 8.661 31.471 1999 01 31 11 18 50.80 -4.35 100 68.741 2.697 8.486 31.473 1999 01 31 11 21 50.80 -4.35 100 68.645 2.686 8.656 31.498 1999 01 31 11 57 50.80 -4.35 100 68.227 2.640 8.672 31.514 1999 01 31 12 20 50.80 -4.35 100 68.433 2.663 8.634 31.517 1999 01 31 12 24 50.80 -4.35 100 68.502 2.670 8.406 31.525 1999 01 31 12 36 50.80 -4.35 100 68.787 2.703 8.637 31.528 1999 01 31 12 39 50.80 -4.35 100 68.897 2.716 8.478 31.543 1999 01 31 13 02 50.80 -4.35 100 69.753 2.819 8.403 31.546 1999 01 31 13 06 50.80 -4.35 100 69.931 2.842 8.645 31.557 1999 01 31 13 22 50.80 -4.35 100 70.802 2.958 8.629 31.585 1999 01 31 14 02 50.80 -4.35 100 73.620 3.413 8.575