De Backer H. DOBSON UCCLE TOTALCOL 01-JUL-1978 00:00:0031-JUL-1978 23:59:590001 30 1010 Hugo De Backer Uccle; Royal Meteorological Institute Belgium Dobson Spectrophotometer Instrument No.40 NDSC 1 1 1978 07 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 3.561 1978 07 03 13 28 50.80 -4.35 100 34.099 1.206 10.020 4.343 1978 07 04 08 13 50.80 -4.35 100 49.542 1.534 10.595 4.394 1978 07 04 09 28 50.80 -4.35 100 38.728 1.279 10.595 4.565 1978 07 04 13 33 50.80 -4.35 100 34.744 1.215 9.972 5.474 1978 07 05 11 22 50.80 -4.35 100 28.406 1.136 10.998 5.533 1978 07 05 12 47 50.80 -4.35 100 30.401 1.158 10.369 5.574 1978 07 05 13 46 50.80 -4.35 100 36.282 1.238 10.146 6.349 1978 07 06 08 22 50.80 -4.35 100 48.296 1.497 10.697 6.444 1978 07 06 10 38 50.80 -4.35 100 31.090 1.166 10.222 6.488 1978 07 06 11 42 50.80 -4.35 100 28.116 1.133 10.646