De Backer H. DOBSON UCCLE TOTALCOL 01-MAY-2008 00:00:0031-MAY-2008 23:59:590001 30 1010 Hugo De Backer Uccle; Royal Meteorological Institute Belgium Dobson Spectrophotometer Instrument No.40 NDACC 1 1 2008 05 01 2008 08 08 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 5.363 2008 05 05 08 42 50.80 -4.35 100 49.140 1.522 8.999 5.516 2008 05 05 12 23 50.80 -4.35 100 35.467 1.226 9.134 5.518 2008 05 05 12 25 50.80 -4.35 100 35.590 1.228 9.161 5.549 2008 05 05 13 10 50.80 -4.35 100 38.910 1.282 9.187 5.550 2008 05 05 13 12 50.80 -4.35 100 39.087 1.285 9.161 6.342 2008 05 06 08 13 50.80 -4.35 100 53.194 1.659 8.838 6.369 2008 05 06 08 51 50.80 -4.35 100 47.722 1.480 8.892 6.371 2008 05 06 08 54 50.80 -4.35 100 47.331 1.470 8.999 6.541 2008 05 06 12 58 50.80 -4.35 100 37.575 1.259 8.919 6.543 2008 05 06 13 01 50.80 -4.35 100 37.820 1.263 8.946 7.322 2008 05 07 07 44 50.80 -4.35 100 57.354 1.839 8.543 7.400 2008 05 07 09 35 50.80 -4.35 100 41.861 1.339 8.489 7.401 2008 05 07 09 37 50.80 -4.35 100 41.575 1.333 8.435 7.468 2008 05 07 11 14 50.80 -4.35 100 34.169 1.207 8.650 7.470 2008 05 07 11 17 50.80 -4.35 100 34.086 1.206 8.623 7.542 2008 05 07 13 00 50.80 -4.35 100 37.484 1.258 8.570 7.544 2008 05 07 13 02 50.80 -4.35 100 37.695 1.261 8.623 8.363 2008 05 08 08 42 50.80 -4.35 100 48.546 1.504 8.779 8.415 2008 05 08 09 57 50.80 -4.35 100 39.201 1.288 8.784 8.417 2008 05 08 10 00 50.80 -4.35 100 38.916 1.282 8.838 8.521 2008 05 08 12 30 50.80 -4.35 100 35.082 1.220 8.838 8.524 2008 05 08 12 34 50.80 -4.35 100 35.282 1.223 9.080 9.340 2008 05 09 08 09 50.80 -4.35 100 53.035 1.653 8.556 9.520 2008 05 09 12 28 50.80 -4.35 100 34.692 1.214 8.481 13.372 2008 05 13 08 55 50.80 -4.35 100 45.591 1.424 9.510 13.477 2008 05 13 11 26 50.80 -4.35 100 32.350 1.182 9.349 13.478 2008 05 13 11 28 50.80 -4.35 100 32.328 1.182 9.698 13.532 2008 05 13 12 46 50.80 -4.35 100 34.890 1.217 9.496 14.530 2008 05 14 12 43 50.80 -4.35 100 34.485 1.211 9.623 15.526 2008 05 15 12 37 50.80 -4.35 100 33.842 1.202 9.523 16.482 2008 05 16 11 34 50.80 -4.35 100 31.565 1.172 9.996 16.534 2008 05 16 12 48 50.80 -4.35 100 34.437 1.211 9.897 19.361 2008 05 19 08 40 50.80 -4.35 100 46.687 1.452 10.396 19.530 2008 05 19 12 43 50.80 -4.35 100 33.360 1.196 10.547 21.341 2008 05 21 08 11 50.80 -4.35 100 50.683 1.570 9.746 21.467 2008 05 21 11 12 50.80 -4.35 100 30.934 1.164 9.870 21.525 2008 05 21 12 35 50.80 -4.35 100 32.444 1.183 9.821 22.506 2008 05 22 12 08 50.80 -4.35 100 30.836 1.163 9.821 23.486 2008 05 23 11 39 50.80 -4.35 100 30.096 1.155 9.273 26.496 2008 05 26 11 54 50.80 -4.35 100 29.699 1.150 8.433 28.517 2008 05 28 12 24 50.80 -4.35 100 30.504 1.159 9.150