De Backer H. DOBSON UCCLE TOTALCOL 01-JAN-2008 00:00:0031-JAN-2008 23:59:590001 30 1010 Hugo De Backer Uccle; Royal Meteorological Institute Belgium Dobson Spectrophotometer Instrument No.40 NDACC 1 1 2008 01 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 17.534 2008 01 17 12 49 50.80 -4.35 100 72.682 3.248 7.893 21.524 2008 01 21 12 34 50.80 -4.35 100 71.334 3.036 7.965 22.450 2008 01 22 10 48 50.80 -4.35 100 72.028 3.141 6.646 28.545 2008 01 28 13 05 50.80 -4.35 100 70.758 2.953 8.212 29.515 2008 01 29 12 22 50.80 -4.35 100 69.066 2.736 7.793