De Backer H. DOBSON UCCLE TOTALCOL 01-AUG-1999 00:00:0031-AUG-1999 23:59:590001 30 1010 Hugo De Backer Uccle; Royal Meteorological Institute Belgium Dobson Spectrophotometer Instrument No.40 NDSC 1 1 1999 08 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 2.501 1999 08 02 12 00 50.80 -4.35 100 33.081 1.192 8.803 3.466 1999 08 03 11 11 50.80 -4.35 100 34.080 1.205 9.373 3.540 1999 08 03 12 58 50.80 -4.35 100 36.026 1.234 8.631 4.367 1999 08 04 08 48 50.80 -4.35 100 48.872 1.514 8.433 4.494 1999 08 04 11 50 50.80 -4.35 100 33.517 1.198 8.333 4.538 1999 08 04 12 54 50.80 -4.35 100 36.032 1.234 8.408 5.330 1999 08 05 07 54 50.80 -4.35 100 57.083 1.825 8.827 5.469 1999 08 05 11 15 50.80 -4.35 100 34.417 1.210 8.433 5.537 1999 08 05 12 53 50.80 -4.35 100 36.216 1.237 8.408 6.341 1999 08 06 08 10 50.80 -4.35 100 54.878 1.726 8.193 6.342 1999 08 06 08 12 50.80 -4.35 100 54.600 1.715 8.140 6.389 1999 08 06 09 20 50.80 -4.35 100 45.014 1.410 8.220 6.390 1999 08 06 09 22 50.80 -4.35 100 44.820 1.405 8.140 6.493 1999 08 06 11 50 50.80 -4.35 100 34.055 1.205 8.185 6.537 1999 08 06 12 52 50.80 -4.35 100 36.401 1.240 8.236 9.382 1999 08 09 09 10 50.80 -4.35 100 46.995 1.460 9.448 9.496 1999 08 09 11 54 50.80 -4.35 100 34.919 1.218 8.631 9.538 1999 08 09 12 55 50.80 -4.35 100 37.430 1.257 8.631 11.351 1999 08 11 08 24 50.80 -4.35 100 53.760 1.681 8.803 11.450 1999 08 11 10 47 50.80 -4.35 100 37.461 1.257 8.728 11.503 1999 08 11 12 04 50.80 -4.35 100 35.650 1.228 9.002 11.543 1999 08 11 13 02 50.80 -4.35 100 38.555 1.276 8.827 12.387 1999 08 12 09 16 50.80 -4.35 100 46.847 1.456 8.803 12.534 1999 08 12 12 48 50.80 -4.35 100 37.858 1.264 8.892 12.535 1999 08 12 12 50 50.80 -4.35 100 37.991 1.266 8.919 13.347 1999 08 13 08 19 50.80 -4.35 100 54.988 1.731 8.677 13.348 1999 08 13 08 21 50.80 -4.35 100 54.734 1.720 8.623 13.540 1999 08 13 12 57 50.80 -4.35 100 38.778 1.280 8.556 16.341 1999 08 16 08 11 50.80 -4.35 100 56.858 1.815 8.879 16.446 1999 08 16 10 42 50.80 -4.35 100 39.259 1.289 8.852 16.534 1999 08 16 12 49 50.80 -4.35 100 39.140 1.286 9.050 18.353 1999 08 18 08 28 50.80 -4.35 100 54.785 1.722 9.249 18.536 1999 08 18 12 52 50.80 -4.35 100 39.943 1.301 8.903 19.351 1999 08 19 08 25 50.80 -4.35 100 55.433 1.750 9.150 19.458 1999 08 19 10 59 50.80 -4.35 100 39.152 1.287 9.448 19.538 1999 08 19 12 54 50.80 -4.35 100 40.465 1.311 9.174 20.344 1999 08 20 08 14 50.80 -4.35 100 57.250 1.834 9.424 20.388 1999 08 20 09 19 50.80 -4.35 100 48.462 1.502 9.623 20.533 1999 08 20 12 48 50.80 -4.35 100 40.347 1.309 9.424 22.325 1999 08 22 07 48 50.80 -4.35 100 61.585 2.078 8.516 22.327 1999 08 22 07 50 50.80 -4.35 100 61.221 2.054 8.462 22.401 1999 08 22 09 36 50.80 -4.35 100 46.924 1.459 8.704 22.402 1999 08 22 09 38 50.80 -4.35 100 46.758 1.454 8.516 22.404 1999 08 22 09 42 50.80 -4.35 100 46.325 1.443 8.677 23.339 1999 08 23 08 08 50.80 -4.35 100 58.795 1.913 8.435 23.341 1999 08 23 08 10 50.80 -4.35 100 58.569 1.900 8.489 23.490 1999 08 23 11 45 50.80 -4.35 100 39.298 1.289 8.650 23.491 1999 08 23 11 46 50.80 -4.35 100 39.299 1.289 8.570 23.539 1999 08 23 12 56 50.80 -4.35 100 41.892 1.340 8.758 23.540 1999 08 23 12 57 50.80 -4.35 100 41.979 1.341 8.650 24.353 1999 08 24 08 28 50.80 -4.35 100 56.148 1.782 8.040 24.420 1999 08 24 10 04 50.80 -4.35 100 44.632 1.401 7.917 24.464 1999 08 24 11 08 50.80 -4.35 100 40.344 1.309 7.989 25.356 1999 08 25 08 32 50.80 -4.35 100 55.878 1.770 8.113 25.489 1999 08 25 11 44 50.80 -4.35 100 39.981 1.302 7.965 26.339 1999 08 26 08 08 50.80 -4.35 100 59.607 1.957 8.355 26.340 1999 08 26 08 09 50.80 -4.35 100 59.357 1.943 8.274 26.448 1999 08 26 10 44 50.80 -4.35 100 42.153 1.345 8.360 26.541 1999 08 26 12 58 50.80 -4.35 100 43.111 1.366 8.261 27.349 1999 08 27 08 22 50.80 -4.35 100 57.751 1.858 8.089 27.494 1999 08 27 11 50 50.80 -4.35 100 40.700 1.316 8.089 29.325 1999 08 29 07 47 50.80 -4.35 100 63.344 2.200 8.032 29.326 1999 08 29 07 49 50.80 -4.35 100 63.118 2.183 7.925 29.408 1999 08 29 09 47 50.80 -4.35 100 47.780 1.482 7.898 29.409 1999 08 29 09 49 50.80 -4.35 100 47.550 1.476 7.952 30.349 1999 08 30 08 22 50.80 -4.35 100 58.482 1.896 8.212 30.388 1999 08 30 09 18 50.80 -4.35 100 51.219 1.588 8.089 30.535 1999 08 30 12 50 50.80 -4.35 100 44.023 1.386 8.113 31.378 1999 08 31 09 04 50.80 -4.35 100 53.187 1.659 7.842 31.463 1999 08 31 11 07 50.80 -4.35 100 42.728 1.357 7.769 31.541 1999 08 31 12 59 50.80 -4.35 100 44.996 1.409 8.040