De Backer H. DOBSON UCCLE TOTALCOL 01-APR-1977 00:00:0030-APR-1977 23:59:590001 30 1010 Hugo De Backer Uccle; Royal Meteorological Institute Belgium Dobson Spectrophotometer Instrument No.40 NDSC 1 1 1977 04 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 1.614 1977 04 01 14 43 50.80 -4.35 100 59.073 1.928 10.622 4.375 1977 04 04 09 00 50.80 -4.35 100 56.717 1.808 11.632 4.379 1977 04 04 09 05 50.80 -4.35 100 56.038 1.777 11.498 4.492 1977 04 04 11 48 50.80 -4.35 100 45.050 1.411 11.363 4.497 1977 04 04 11 56 50.80 -4.35 100 45.099 1.412 11.390 4.526 1977 04 04 12 38 50.80 -4.35 100 46.345 1.443 11.729 5.336 1977 04 05 08 04 50.80 -4.35 100 63.883 2.240 10.246 5.396 1977 04 05 09 30 50.80 -4.35 100 52.800 1.644 9.770 5.480 1977 04 05 11 31 50.80 -4.35 100 44.762 1.404 10.095 5.486 1977 04 05 11 40 50.80 -4.35 100 44.681 1.402 9.870 5.542 1977 04 05 13 00 50.80 -4.35 100 47.285 1.468 9.797 6.351 1977 04 06 08 24 50.80 -4.35 100 60.646 2.018 8.951 6.403 1977 04 06 09 40 50.80 -4.35 100 51.320 1.592 9.002 6.448 1977 04 06 10 45 50.80 -4.35 100 45.988 1.434 9.075 6.487 1977 04 06 11 40 50.80 -4.35 100 44.298 1.393 9.050 6.530 1977 04 06 12 43 50.80 -4.35 100 45.892 1.432 9.002 6.573 1977 04 06 13 44 50.80 -4.35 100 50.738 1.572 9.397 7.358 1977 04 07 08 35 50.80 -4.35 100 58.788 1.912 10.071 7.403 1977 04 07 09 41 50.80 -4.35 100 50.896 1.577 10.772 7.464 1977 04 07 11 08 50.80 -4.35 100 44.553 1.399 10.369 7.467 1977 04 07 11 12 50.80 -4.35 100 44.443 1.396 10.369 7.575 1977 04 07 13 47 50.80 -4.35 100 50.773 1.573 10.872 8.355 1977 04 08 08 31 50.80 -4.35 100 59.025 1.925 12.304 8.358 1977 04 08 08 34 50.80 -4.35 100 58.560 1.900 12.384 8.393 1977 04 08 09 25 50.80 -4.35 100 52.178 1.622 12.384 8.394 1977 04 08 09 27 50.80 -4.35 100 51.943 1.613 12.223 8.467 1977 04 08 11 11 50.80 -4.35 100 44.071 1.387 12.411 13.289 1977 04 13 06 56 50.80 -4.35 100 71.434 3.050 10.246 13.562 1977 04 13 13 28 50.80 -4.35 100 47.021 1.461 10.171 14.335 1977 04 14 08 02 50.80 -4.35 100 61.165 2.051 11.229 14.338 1977 04 14 08 06 50.80 -4.35 100 60.484 2.009 11.337 14.547 1977 04 14 13 08 50.80 -4.35 100 44.883 1.407 12.519 14.550 1977 04 14 13 12 50.80 -4.35 100 45.220 1.415 12.438 15.404 1977 04 15 09 42 50.80 -4.35 100 47.910 1.486 11.705 15.500 1977 04 15 12 00 50.80 -4.35 100 41.130 1.324 11.780 18.313 1977 04 18 07 31 50.80 -4.35 100 64.494 2.288 9.725 18.318 1977 04 18 07 37 50.80 -4.35 100 63.528 2.213 9.752 18.406 1977 04 18 09 45 50.80 -4.35 100 46.528 1.448 9.647 18.478 1977 04 18 11 27 50.80 -4.35 100 40.031 1.303 9.496 18.551 1977 04 18 13 13 50.80 -4.35 100 44.073 1.387 10.071 19.329 1977 04 19 07 54 50.80 -4.35 100 60.711 2.022 11.444 19.334 1977 04 19 08 01 50.80 -4.35 100 59.698 1.963 11.471 19.357 1977 04 19 08 33 50.80 -4.35 100 55.062 1.734 11.525 19.361 1977 04 19 08 39 50.80 -4.35 100 54.180 1.698 11.444 19.438 1977 04 19 10 31 50.80 -4.35 100 42.130 1.345 11.275 19.475 1977 04 19 11 24 50.80 -4.35 100 39.731 1.297 11.578 19.478 1977 04 19 11 29 50.80 -4.35 100 39.662 1.296 11.444 19.549 1977 04 19 13 10 50.80 -4.35 100 43.525 1.375 11.073 20.320 1977 04 20 07 41 50.80 -4.35 100 62.387 2.131 10.423 20.323 1977 04 20 07 45 50.80 -4.35 100 61.731 2.087 10.316 20.384 1977 04 20 09 12 50.80 -4.35 100 49.618 1.536 9.870 20.503 1977 04 20 12 05 50.80 -4.35 100 39.518 1.293 10.369 20.507 1977 04 20 12 09 50.80 -4.35 100 39.642 1.296 10.101 20.554 1977 04 20 13 17 50.80 -4.35 100 43.868 1.383 9.722 21.329 1977 04 21 07 54 50.80 -4.35 100 60.104 1.986 9.846 21.442 1977 04 21 10 36 50.80 -4.35 100 41.103 1.324 9.349 21.543 1977 04 21 13 02 50.80 -4.35 100 42.244 1.347 9.174 22.340 1977 04 22 08 09 50.80 -4.35 100 57.587 1.850 8.827 22.423 1977 04 22 10 09 50.80 -4.35 100 42.894 1.361 8.879 24.300 1977 04 24 07 11 50.80 -4.35 100 65.817 2.401 10.987 24.304 1977 04 24 07 18 50.80 -4.35 100 64.727 2.307 10.880 24.328 1977 04 24 07 52 50.80 -4.35 100 59.499 1.951 10.692 25.450 1977 04 25 10 47 50.80 -4.35 100 39.078 1.285 10.746 25.481 1977 04 25 11 32 50.80 -4.35 100 37.596 1.260 10.321 25.569 1977 04 25 13 38 50.80 -4.35 100 44.535 1.398 9.424 26.342 1977 04 26 08 13 50.80 -4.35 100 55.866 1.769 9.273 26.378 1977 04 26 09 04 50.80 -4.35 100 48.752 1.510 9.483 26.382 1977 04 26 09 10 50.80 -4.35 100 48.062 1.490 9.483 26.469 1977 04 26 11 15 50.80 -4.35 100 37.573 1.259 9.273 26.535 1977 04 26 12 50 50.80 -4.35 100 39.830 1.299 9.572 27.363 1977 04 27 08 43 50.80 -4.35 100 51.302 1.591 9.870 27.370 1977 04 27 08 52 50.80 -4.35 100 50.103 1.552 10.222 27.467 1977 04 27 11 12 50.80 -4.35 100 37.348 1.255 10.128 28.450 1977 04 28 10 47 50.80 -4.35 100 38.136 1.269 10.445 28.548 1977 04 28 13 08 50.80 -4.35 100 40.740 1.317 10.496 28.587 1977 04 28 14 05 50.80 -4.35 100 46.837 1.456 10.571 29.448 1977 04 29 10 45 50.80 -4.35 100 37.960 1.266 10.746 29.528 1977 04 29 12 40 50.80 -4.35 100 38.282 1.271 11.175 29.586 1977 04 29 14 03 50.80 -4.35 100 46.401 1.445 10.848