De Backer H. DOBSON UCCLE TOTALCOL 01-NOV-1971 00:00:0030-NOV-1971 23:59:590001 30 1010 Hugo De Backer Uccle; Royal Meteorological Institute Belgium Dobson Spectrophotometer Instrument No.40 NDSC 1 1 1971 11 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 4.366 1971 11 04 08 46 50.80 -4.35 100 74.650 3.618 7.629 4.368 1971 11 04 08 50 50.80 -4.35 100 74.299 3.546 7.334 4.454 1971 11 04 10 53 50.80 -4.35 100 66.420 2.456 7.307 4.457 1971 11 04 10 58 50.80 -4.35 100 66.329 2.448 7.173 4.510 1971 11 04 12 14 50.80 -4.35 100 66.916 2.504 7.280 4.513 1971 11 04 12 18 50.80 -4.35 100 67.059 2.518 7.119 4.590 1971 11 04 14 09 50.80 -4.35 100 75.105 3.716 7.208 5.384 1971 11 05 09 13 50.80 -4.35 100 72.434 3.207 7.307 5.387 1971 11 05 09 17 50.80 -4.35 100 72.063 3.147 7.307 5.457 1971 11 05 10 57 50.80 -4.35 100 66.648 2.478 7.361 5.459 1971 11 05 11 01 50.80 -4.35 100 66.575 2.471 7.388 5.518 1971 11 05 12 25 50.80 -4.35 100 67.630 2.576 7.602 5.519 1971 11 05 12 27 50.80 -4.35 100 67.734 2.587 7.656 8.453 1971 11 08 10 51 50.80 -4.35 100 67.673 2.581 7.793 8.510 1971 11 08 12 15 50.80 -4.35 100 68.110 2.628 8.185 8.577 1971 11 08 13 50 50.80 -4.35 100 74.353 3.557 7.868 9.464 1971 11 09 11 08 50.80 -4.35 100 67.657 2.579 8.309 9.495 1971 11 09 11 52 50.80 -4.35 100 67.788 2.593 8.532 10.368 1971 11 10 08 50 50.80 -4.35 100 75.954 3.913 7.868 10.454 1971 11 10 10 53 50.80 -4.35 100 68.204 2.638 8.382 10.457 1971 11 10 10 57 50.80 -4.35 100 68.114 2.628 8.274 10.503 1971 11 10 12 03 50.80 -4.35 100 68.327 2.651 8.489 10.506 1971 11 10 12 08 50.80 -4.35 100 68.448 2.665 8.355 10.591 1971 11 10 14 10 50.80 -4.35 100 76.814 4.136 7.696 12.373 1971 11 12 08 57 50.80 -4.35 100 75.811 3.879 7.769 12.451 1971 11 12 10 49 50.80 -4.35 100 68.871 2.713 7.500 16.388 1971 11 16 09 19 50.80 -4.35 100 74.884 3.668 8.212 16.459 1971 11 16 11 00 50.80 -4.35 100 69.683 2.811 8.408 16.510 1971 11 16 12 13 50.80 -4.35 100 70.191 2.877 8.408 17.457 1971 11 17 10 58 50.80 -4.35 100 69.980 2.849 7.989 17.506 1971 11 17 12 08 50.80 -4.35 100 70.281 2.888 7.965 17.518 1971 11 17 12 25 50.80 -4.35 100 70.851 2.966 7.745 19.409 1971 11 19 09 49 50.80 -4.35 100 73.408 3.375 9.671 19.455 1971 11 19 10 55 50.80 -4.35 100 70.521 2.921 9.695 19.499 1971 11 19 11 58 50.80 -4.35 100 70.497 2.917 9.623 22.497 1971 11 22 11 55 50.80 -4.35 100 71.095 3.001 9.225 23.381 1971 11 23 09 08 50.80 -4.35 100 77.492 4.328 8.384 23.448 1971 11 23 10 44 50.80 -4.35 100 71.713 3.092 8.089 23.520 1971 11 23 12 29 50.80 -4.35 100 72.301 3.185 8.852 24.458 1971 11 24 10 59 50.80 -4.35 100 71.570 3.071 8.631 24.498 1971 11 24 11 56 50.80 -4.35 100 71.526 3.064 8.903 24.569 1971 11 24 13 39 50.80 -4.35 100 76.824 4.138 8.580 25.450 1971 11 25 10 47 50.80 -4.35 100 72.064 3.147 7.232 25.507 1971 11 25 12 09 50.80 -4.35 100 72.021 3.140 7.036 29.456 1971 11 29 10 56 50.80 -4.35 100 72.602 3.234 8.013 29.493 1971 11 29 11 49 50.80 -4.35 100 72.328 3.189 8.113