De Backer H. DOBSON UCCLE TOTALCOL 01-MAY-1993 00:00:0031-MAY-1993 23:59:590001 30 1010 Hugo De Backer Uccle; Royal Meteorological Institute Belgium Dobson Spectrophotometer Instrument No.40 NDSC 1 1 1993 05 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 1.353 1993 05 01 08 28 50.80 -4.35 100 52.286 1.626 8.516 1.358 1993 05 01 08 35 50.80 -4.35 100 51.287 1.591 8.623 2.354 1993 05 02 08 29 50.80 -4.35 100 51.801 1.608 9.373 3.335 1993 05 03 08 02 50.80 -4.35 100 55.554 1.755 9.002 3.428 1993 05 03 10 16 50.80 -4.35 100 38.795 1.280 9.273 3.490 1993 05 03 11 45 50.80 -4.35 100 35.064 1.220 9.150 3.520 1993 05 03 12 28 50.80 -4.35 100 36.378 1.240 9.225 4.347 1993 05 04 08 19 50.80 -4.35 100 52.771 1.643 9.150 4.434 1993 05 04 10 24 50.80 -4.35 100 37.853 1.264 9.134 4.435 1993 05 04 10 26 50.80 -4.35 100 37.749 1.262 9.161 4.495 1993 05 04 11 53 50.80 -4.35 100 34.863 1.217 9.107 4.498 1993 05 04 11 56 50.80 -4.35 100 34.925 1.218 9.214 4.524 1993 05 04 12 34 50.80 -4.35 100 36.480 1.241 9.107 4.525 1993 05 04 12 35 50.80 -4.35 100 36.527 1.242 9.375 5.327 1993 05 05 07 51 50.80 -4.35 100 56.815 1.813 8.892 5.328 1993 05 05 07 52 50.80 -4.35 100 56.534 1.799 8.999 5.458 1993 05 05 10 59 50.80 -4.35 100 35.383 1.224 9.134 5.460 1993 05 05 11 02 50.80 -4.35 100 35.272 1.223 9.080 5.490 1993 05 05 11 45 50.80 -4.35 100 34.487 1.211 9.295 5.492 1993 05 05 11 48 50.80 -4.35 100 34.517 1.212 9.295 5.527 1993 05 05 12 38 50.80 -4.35 100 36.469 1.241 9.241 5.529 1993 05 05 12 41 50.80 -4.35 100 36.622 1.244 9.241 6.449 1993 05 06 10 46 50.80 -4.35 100 35.812 1.231 9.537 6.450 1993 05 06 10 48 50.80 -4.35 100 35.678 1.229 9.590 6.492 1993 05 06 11 48 50.80 -4.35 100 34.236 1.208 9.698 6.494 1993 05 06 11 50 50.80 -4.35 100 34.261 1.208 9.832 6.525 1993 05 06 12 36 50.80 -4.35 100 36.038 1.234 9.725 6.527 1993 05 06 12 38 50.80 -4.35 100 36.161 1.236 9.778 7.342 1993 05 07 08 12 50.80 -4.35 100 53.130 1.657 9.496 7.382 1993 05 07 09 10 50.80 -4.35 100 45.059 1.411 9.797 7.460 1993 05 07 11 02 50.80 -4.35 100 34.682 1.214 9.671 7.525 1993 05 07 12 36 50.80 -4.35 100 35.786 1.231 9.695 8.329 1993 05 08 07 53 50.80 -4.35 100 55.809 1.767 10.020 9.322 1993 05 09 07 44 50.80 -4.35 100 56.989 1.821 9.596 10.336 1993 05 10 08 04 50.80 -4.35 100 53.708 1.679 9.483 10.337 1993 05 10 08 05 50.80 -4.35 100 53.487 1.670 9.349 10.398 1993 05 10 09 33 50.80 -4.35 100 41.432 1.330 9.510 10.399 1993 05 10 09 35 50.80 -4.35 100 41.270 1.327 9.402 10.468 1993 05 10 11 13 50.80 -4.35 100 33.505 1.197 9.510 10.469 1993 05 10 11 14 50.80 -4.35 100 33.459 1.197 9.429 10.525 1993 05 10 12 35 50.80 -4.35 100 34.990 1.219 9.402 10.526 1993 05 10 12 37 50.80 -4.35 100 35.064 1.220 9.402 11.342 1993 05 11 08 12 50.80 -4.35 100 52.211 1.623 8.946 11.345 1993 05 11 08 16 50.80 -4.35 100 51.715 1.605 9.080 11.386 1993 05 11 09 15 50.80 -4.35 100 43.496 1.374 8.919 11.387 1993 05 11 09 17 50.80 -4.35 100 43.239 1.369 9.026 11.480 1993 05 11 11 31 50.80 -4.35 100 32.885 1.189 8.973 11.482 1993 05 11 11 33 50.80 -4.35 100 32.863 1.189 9.107 11.520 1993 05 11 12 29 50.80 -4.35 100 34.347 1.209 9.026 11.522 1993 05 11 12 31 50.80 -4.35 100 34.464 1.211 9.537 12.397 1993 05 12 09 31 50.80 -4.35 100 41.243 1.326 8.951 12.437 1993 05 12 10 29 50.80 -4.35 100 35.444 1.225 9.002 12.479 1993 05 12 11 29 50.80 -4.35 100 32.651 1.186 9.324 12.519 1993 05 12 12 27 50.80 -4.35 100 33.991 1.204 9.225 13.337 1993 05 13 08 05 50.80 -4.35 100 53.004 1.652 9.324 13.400 1993 05 13 09 36 50.80 -4.35 100 40.434 1.311 9.746 13.429 1993 05 13 10 18 50.80 -4.35 100 36.097 1.235 10.270 13.523 1993 05 13 12 32 50.80 -4.35 100 34.041 1.205 11.124 14.350 1993 05 14 08 24 50.80 -4.35 100 49.905 1.545 9.695 14.375 1993 05 14 09 00 50.80 -4.35 100 44.786 1.404 9.722 14.470 1993 05 14 11 17 50.80 -4.35 100 32.394 1.183 9.996 14.481 1993 05 14 11 32 50.80 -4.35 100 32.129 1.179 9.897 14.528 1993 05 14 12 39 50.80 -4.35 100 34.300 1.209 9.298 15.395 1993 05 15 09 29 50.80 -4.35 100 40.861 1.319 9.101 16.347 1993 05 16 08 19 50.80 -4.35 100 50.272 1.557 8.973 16.349 1993 05 16 08 22 50.80 -4.35 100 49.837 1.543 9.026 17.344 1993 05 17 08 14 50.80 -4.35 100 50.807 1.574 8.865 17.345 1993 05 17 08 16 50.80 -4.35 100 50.526 1.565 8.919 17.394 1993 05 17 09 27 50.80 -4.35 100 40.708 1.316 8.731 17.396 1993 05 17 09 29 50.80 -4.35 100 40.454 1.311 8.784 17.478 1993 05 17 11 28 50.80 -4.35 100 31.482 1.171 8.946 17.479 1993 05 17 11 30 50.80 -4.35 100 31.456 1.171 8.865 17.524 1993 05 17 12 34 50.80 -4.35 100 33.258 1.194 8.811 17.525 1993 05 17 12 36 50.80 -4.35 100 33.396 1.196 8.919 18.341 1993 05 18 08 11 50.80 -4.35 100 51.187 1.587 9.101 18.391 1993 05 18 09 23 50.80 -4.35 100 41.080 1.323 9.249 18.442 1993 05 18 10 36 50.80 -4.35 100 33.583 1.199 9.126 19.347 1993 05 19 08 19 50.80 -4.35 100 49.825 1.543 9.424 19.439 1993 05 19 10 32 50.80 -4.35 100 33.627 1.199 9.298 19.516 1993 05 19 12 23 50.80 -4.35 100 32.200 1.180 9.150 20.324 1993 05 20 07 47 50.80 -4.35 100 54.558 1.713 9.373 21.322 1993 05 21 07 44 50.80 -4.35 100 54.862 1.726 9.945 21.350 1993 05 21 08 23 50.80 -4.35 100 48.908 1.515 10.171 22.322 1993 05 22 07 44 50.80 -4.35 100 54.742 1.721 8.865 22.324 1993 05 22 07 46 50.80 -4.35 100 54.426 1.708 8.865 23.320 1993 05 23 07 40 50.80 -4.35 100 55.096 1.736 8.758 23.322 1993 05 23 07 43 50.80 -4.35 100 54.746 1.721 8.811 24.349 1993 05 24 08 21 50.80 -4.35 100 48.704 1.509 8.462 24.350 1993 05 24 08 23 50.80 -4.35 100 48.483 1.502 8.382 24.440 1993 05 24 10 33 50.80 -4.35 100 32.640 1.186 8.355 24.442 1993 05 24 10 36 50.80 -4.35 100 32.429 1.183 8.382 24.478 1993 05 24 11 28 50.80 -4.35 100 30.055 1.154 8.220 24.479 1993 05 24 11 30 50.80 -4.35 100 30.038 1.154 8.355 24.524 1993 05 24 12 34 50.80 -4.35 100 31.871 1.176 8.220 24.525 1993 05 24 12 36 50.80 -4.35 100 32.004 1.178 8.301 25.350 1993 05 25 08 24 50.80 -4.35 100 48.203 1.494 8.274 25.352 1993 05 25 08 27 50.80 -4.35 100 47.817 1.483 8.462 25.402 1993 05 25 09 39 50.80 -4.35 100 37.980 1.266 8.408 25.403 1993 05 25 09 40 50.80 -4.35 100 37.802 1.263 8.382 25.473 1993 05 25 11 20 50.80 -4.35 100 30.028 1.154 8.185 25.524 1993 05 25 12 34 50.80 -4.35 100 31.670 1.173 8.462 25.525 1993 05 25 12 35 50.80 -4.35 100 31.768 1.175 8.489 26.331 1993 05 26 07 56 50.80 -4.35 100 52.332 1.627 8.784 26.333 1993 05 26 07 58 50.80 -4.35 100 51.966 1.614 8.704 26.411 1993 05 26 09 51 50.80 -4.35 100 36.376 1.240 8.656 26.481 1993 05 26 11 32 50.80 -4.35 100 29.658 1.149 8.481 26.525 1993 05 26 12 35 50.80 -4.35 100 31.573 1.172 8.803 27.330 1993 05 27 07 55 50.80 -4.35 100 52.312 1.626 9.448 27.404 1993 05 27 09 41 50.80 -4.35 100 37.415 1.257 9.647 27.485 1993 05 27 11 37 50.80 -4.35 100 29.459 1.147 9.671 27.523 1993 05 27 12 33 50.80 -4.35 100 31.260 1.168 9.373 28.405 1993 05 28 09 43 50.80 -4.35 100 37.101 1.251 9.996 28.478 1993 05 28 11 28 50.80 -4.35 100 29.376 1.146 10.821 28.524 1993 05 28 12 34 50.80 -4.35 100 31.163 1.167 10.396 29.336 1993 05 29 08 04 50.80 -4.35 100 50.806 1.574 9.026 29.337 1993 05 29 08 05 50.80 -4.35 100 50.571 1.567 8.892 29.373 1993 05 29 08 56 50.80 -4.35 100 43.066 1.365 8.927 30.346 1993 05 30 08 18 50.80 -4.35 100 48.508 1.503 9.026 30.370 1993 05 30 08 53 50.80 -4.35 100 43.472 1.374 9.174 31.369 1993 05 31 08 51 50.80 -4.35 100 43.544 1.375 9.225