De Backer H. DOBSON UCCLE TOTALCOL 01-MAY-2007 00:00:0031-MAY-2007 23:59:590001 30 1010 Hugo De Backer Uccle; Royal Meteorological Institute Belgium Dobson Spectrophotometer Instrument No.40 NDSC 1 1 2007 05 01 2007 10 24 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 2.412 2007 05 02 09 53 50.80 -4.35 100 41.372 1.329 9.671 2.414 2007 05 02 09 56 50.80 -4.35 100 41.116 1.324 9.644 2.519 2007 05 02 12 27 50.80 -4.35 100 36.753 1.246 9.805 2.522 2007 05 02 12 31 50.80 -4.35 100 36.958 1.249 10.074 3.359 2007 05 03 08 37 50.80 -4.35 100 50.560 1.566 9.375 3.362 2007 05 03 08 41 50.80 -4.35 100 50.067 1.550 9.537 3.539 2007 05 03 12 55 50.80 -4.35 100 38.352 1.272 9.456 3.542 2007 05 03 12 59 50.80 -4.35 100 38.676 1.278 9.537 4.353 2007 05 04 08 28 50.80 -4.35 100 51.644 1.603 10.101 4.356 2007 05 04 08 31 50.80 -4.35 100 51.107 1.584 10.289 4.512 2007 05 04 12 16 50.80 -4.35 100 35.656 1.229 10.171 8.335 2007 05 08 08 02 50.80 -4.35 100 54.438 1.708 10.020 8.401 2007 05 08 09 36 50.80 -4.35 100 41.619 1.334 9.746 8.540 2007 05 08 12 57 50.80 -4.35 100 37.201 1.253 9.870 10.349 2007 05 10 08 23 50.80 -4.35 100 50.998 1.581 9.273 10.405 2007 05 10 09 42 50.80 -4.35 100 40.473 1.311 9.496 11.534 2007 05 11 12 49 50.80 -4.35 100 35.798 1.231 10.420 14.522 2007 05 14 12 32 50.80 -4.35 100 33.881 1.203 11.200 15.380 2007 05 15 09 07 50.80 -4.35 100 43.723 1.379 10.369 16.500 2007 05 16 11 59 50.80 -4.35 100 31.989 1.177 9.797 21.350 2007 05 21 08 23 50.80 -4.35 100 48.936 1.516 8.852 21.385 2007 05 21 09 14 50.80 -4.35 100 41.704 1.336 8.927 22.343 2007 05 22 08 13 50.80 -4.35 100 50.279 1.557 9.050 23.323 2007 05 23 07 45 50.80 -4.35 100 54.487 1.710 8.220 23.325 2007 05 23 07 47 50.80 -4.35 100 54.120 1.695 8.220 24.327 2007 05 24 07 51 50.80 -4.35 100 53.385 1.666 8.140 24.329 2007 05 24 07 53 50.80 -4.35 100 53.110 1.656 8.140 29.366 2007 05 29 08 46 50.80 -4.35 100 44.536 1.398 9.996 29.550 2007 05 29 13 11 50.80 -4.35 100 34.259 1.208 9.945 31.368 2007 05 31 08 50 50.80 -4.35 100 43.857 1.382 9.897 31.514 2007 05 31 12 20 50.80 -4.35 100 29.955 1.153 9.722