De Backer H. DOBSON UCCLE TOTALCOL 01-JAN-1977 00:00:0031-JAN-1977 23:59:590001 30 1010 Hugo De Backer Uccle; Royal Meteorological Institute Belgium Dobson Spectrophotometer Instrument No.40 NDSC 1 1 1977 01 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 4.511 1977 01 04 12 15 50.80 -4.35 100 73.758 3.440 9.472 4.568 1977 01 04 13 38 50.80 -4.35 100 77.421 4.307 9.198 5.417 1977 01 05 10 00 50.80 -4.35 100 77.112 4.218 9.002 5.502 1977 01 05 12 02 50.80 -4.35 100 73.462 3.385 9.174 5.571 1977 01 05 13 42 50.80 -4.35 100 77.576 4.354 8.879 7.419 1977 01 07 10 02 50.80 -4.35 100 76.805 4.133 8.951 7.491 1977 01 07 11 46 50.80 -4.35 100 73.151 3.329 9.075 10.481 1977 01 10 11 33 50.80 -4.35 100 72.826 3.272 9.050 11.509 1977 01 11 12 13 50.80 -4.35 100 72.747 3.259 9.671 11.561 1977 01 11 13 28 50.80 -4.35 100 75.687 3.849 9.695 12.440 1977 01 12 10 33 50.80 -4.35 100 74.409 3.568 11.049 12.500 1977 01 12 12 00 50.80 -4.35 100 72.444 3.208 11.326 13.421 1977 01 13 10 06 50.80 -4.35 100 75.872 3.894 9.695 13.478 1977 01 13 11 27 50.80 -4.35 100 72.435 3.207 9.373 17.422 1977 01 17 10 07 50.80 -4.35 100 75.193 3.736 8.532 17.464 1977 01 17 11 08 50.80 -4.35 100 72.189 3.167 8.384 17.502 1977 01 17 12 02 50.80 -4.35 100 71.537 3.066 8.580 17.527 1977 01 17 12 38 50.80 -4.35 100 72.206 3.169 8.508 18.415 1977 01 18 09 57 50.80 -4.35 100 75.758 3.866 7.898 18.418 1977 01 18 10 02 50.80 -4.35 100 75.366 3.775 8.032 18.471 1977 01 18 11 17 50.80 -4.35 100 71.735 3.096 7.979 18.475 1977 01 18 11 24 50.80 -4.35 100 71.589 3.074 8.193 18.534 1977 01 18 12 48 50.80 -4.35 100 72.330 3.190 7.952 18.538 1977 01 18 12 54 50.80 -4.35 100 72.577 3.230 8.167 20.425 1977 01 20 10 12 50.80 -4.35 100 74.323 3.551 8.408 20.517 1977 01 20 12 24 50.80 -4.35 100 71.199 3.016 7.893 21.414 1977 01 21 09 56 50.80 -4.35 100 75.229 3.744 7.468 21.443 1977 01 21 10 38 50.80 -4.35 100 72.624 3.238 7.817 21.447 1977 01 21 10 43 50.80 -4.35 100 72.355 3.194 7.952 21.522 1977 01 21 12 32 50.80 -4.35 100 71.159 3.010 8.161 24.449 1977 01 24 10 46 50.80 -4.35 100 71.574 3.071 8.946 24.452 1977 01 24 10 51 50.80 -4.35 100 71.354 3.038 9.026 24.484 1977 01 24 11 37 50.80 -4.35 100 70.074 2.861 9.161 24.489 1977 01 24 11 44 50.80 -4.35 100 70.002 2.852 9.295 24.532 1977 01 24 12 45 50.80 -4.35 100 70.844 2.965 9.397 24.561 1977 01 24 13 28 50.80 -4.35 100 72.904 3.286 9.349 26.419 1977 01 26 10 03 50.80 -4.35 100 73.676 3.425 10.520 26.494 1977 01 26 11 51 50.80 -4.35 100 69.472 2.785 10.974 26.509 1977 01 26 12 13 50.80 -4.35 100 69.578 2.798 11.124 27.479 1977 01 27 11 30 50.80 -4.35 100 69.437 2.781 11.022 28.416 1977 01 28 09 59 50.80 -4.35 100 73.544 3.400 11.882 28.449 1977 01 28 10 46 50.80 -4.35 100 70.618 2.934 11.984 28.493 1977 01 28 11 49 50.80 -4.35 100 68.961 2.724 12.110 28.575 1977 01 28 13 48 50.80 -4.35 100 73.268 3.350 11.984 31.409 1977 01 31 09 49 50.80 -4.35 100 73.609 3.412 9.897 31.446 1977 01 31 10 42 50.80 -4.35 100 70.019 2.854 10.423 31.449 1977 01 31 10 47 50.80 -4.35 100 69.806 2.827 10.531 31.472 1977 01 31 11 20 50.80 -4.35 100 68.594 2.681 10.638 31.476 1977 01 31 11 25 50.80 -4.35 100 68.471 2.667 10.665 31.495 1977 01 31 11 53 50.80 -4.35 100 68.134 2.630 10.799 31.499 1977 01 31 11 58 50.80 -4.35 100 68.132 2.630 10.746 31.531 1977 01 31 12 45 50.80 -4.35 100 68.976 2.725 10.665 31.536 1977 01 31 12 51 50.80 -4.35 100 69.210 2.753 10.611 31.572 1977 01 31 13 43 50.80 -4.35 100 72.100 3.153 10.120