De Backer H. DOBSON UCCLE TOTALCOL 01-SEP-1998 00:00:0030-SEP-1998 23:59:590001 30 1010 Hugo De Backer Uccle; Royal Meteorological Institute Belgium Dobson Spectrophotometer Instrument No.40 NDSC 1 1 1998 09 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 1.488 1998 09 01 11 42 50.80 -4.35 100 42.544 1.353 8.827 1.509 1998 09 01 12 13 50.80 -4.35 100 43.019 1.364 8.680 2.337 1998 09 02 08 05 50.80 -4.35 100 61.758 2.089 8.212 5.349 1998 09 05 08 22 50.80 -4.35 100 60.153 1.989 8.903 5.417 1998 09 05 10 00 50.80 -4.35 100 48.721 1.509 8.927 5.349 1998 09 05 08 22 50.80 -4.35 100 60.075 1.984 8.604 5.417 1998 09 05 10 01 50.80 -4.35 100 48.667 1.508 8.457 5.494 1998 09 05 11 50 50.80 -4.35 100 44.057 1.387 8.137 6.349 1998 09 06 08 22 50.80 -4.35 100 60.338 2.000 8.556 6.417 1998 09 06 10 01 50.80 -4.35 100 48.984 1.517 8.408 6.494 1998 09 06 11 50 50.80 -4.35 100 44.432 1.396 8.089 7.320 1998 09 07 07 40 50.80 -4.35 100 66.683 2.482 8.309 7.548 1998 09 07 13 09 50.80 -4.35 100 48.474 1.502 8.212 8.414 1998 09 08 09 55 50.80 -4.35 100 50.121 1.552 7.793 8.517 1998 09 08 12 24 50.80 -4.35 100 46.057 1.436 7.721 9.483 1998 09 09 11 35 50.80 -4.35 100 45.516 1.422 7.597 9.528 1998 09 09 12 39 50.80 -4.35 100 47.220 1.467 8.013 10.356 1998 09 10 08 32 50.80 -4.35 100 60.097 1.986 8.212 10.401 1998 09 10 09 36 50.80 -4.35 100 52.540 1.635 8.089 10.489 1998 09 10 11 44 50.80 -4.35 100 45.898 1.432 8.161 11.324 1998 09 11 07 46 50.80 -4.35 100 66.799 2.493 8.532 11.463 1998 09 11 11 07 50.80 -4.35 100 46.745 1.454 8.481 12.374 1998 09 12 08 58 50.80 -4.35 100 57.350 1.838 9.472 13.336 1998 09 13 08 03 50.80 -4.35 100 64.855 2.318 10.195 14.483 1998 09 14 11 35 50.80 -4.35 100 47.416 1.472 9.921 14.518 1998 09 14 12 26 50.80 -4.35 100 48.502 1.503 9.797 15.453 1998 09 15 10 51 50.80 -4.35 100 48.759 1.510 8.457 15.520 1998 09 15 12 29 50.80 -4.35 100 49.013 1.518 8.631 16.315 1998 09 16 07 34 50.80 -4.35 100 69.903 2.839 8.261 16.526 1998 09 16 12 36 50.80 -4.35 100 49.797 1.542 8.360 17.335 1998 09 17 08 02 50.80 -4.35 100 66.068 2.424 8.728 17.409 1998 09 17 09 49 50.80 -4.35 100 53.579 1.674 8.827 18.337 1998 09 18 08 05 50.80 -4.35 100 65.938 2.412 7.769 18.380 1998 09 18 09 07 50.80 -4.35 100 58.146 1.878 7.549 18.498 1998 09 18 11 57 50.80 -4.35 100 49.159 1.522 7.500 18.523 1998 09 18 12 32 50.80 -4.35 100 50.373 1.560 7.401 19.314 1998 09 19 07 32 50.80 -4.35 100 70.869 2.969 8.261 20.307 1998 09 20 07 21 50.80 -4.35 100 72.722 3.255 8.185 21.340 1998 09 21 08 10 50.80 -4.35 100 66.166 2.433 7.328 21.422 1998 09 21 10 07 50.80 -4.35 100 53.504 1.671 7.084 21.527 1998 09 21 12 39 50.80 -4.35 100 51.925 1.613 7.414 21.529 1998 09 21 12 42 50.80 -4.35 100 52.094 1.619 7.414 22.350 1998 09 22 08 23 50.80 -4.35 100 64.622 2.299 7.522 22.351 1998 09 22 08 25 50.80 -4.35 100 64.383 2.280 7.388 22.396 1998 09 22 09 30 50.80 -4.35 100 56.974 1.820 7.388 22.398 1998 09 22 09 32 50.80 -4.35 100 56.772 1.811 7.388 22.472 1998 09 22 11 19 50.80 -4.35 100 50.614 1.568 7.522 22.473 1998 09 22 11 21 50.80 -4.35 100 50.594 1.567 7.549 22.529 1998 09 22 12 41 50.80 -4.35 100 52.444 1.631 7.495 22.530 1998 09 22 12 43 50.80 -4.35 100 52.546 1.635 7.522 23.323 1998 09 23 07 45 50.80 -4.35 100 70.182 2.875 7.181 23.379 1998 09 23 09 05 50.80 -4.35 100 59.861 1.972 7.132 23.547 1998 09 23 13 07 50.80 -4.35 100 54.559 1.713 7.253 23.548 1998 09 23 13 08 50.80 -4.35 100 54.648 1.717 7.226 24.339 1998 09 24 08 08 50.80 -4.35 100 67.243 2.537 7.844 24.340 1998 09 24 08 09 50.80 -4.35 100 67.063 2.519 7.791 24.430 1998 09 24 10 19 50.80 -4.35 100 53.706 1.679 8.032 24.432 1998 09 24 10 22 50.80 -4.35 100 53.540 1.672 8.059 24.476 1998 09 24 11 26 50.80 -4.35 100 51.317 1.592 8.086 24.477 1998 09 24 11 27 50.80 -4.35 100 51.306 1.591 8.113 24.533 1998 09 24 12 46 50.80 -4.35 100 53.554 1.673 8.193 24.533 1998 09 24 12 48 50.80 -4.35 100 53.637 1.676 8.140 25.328 1998 09 25 07 52 50.80 -4.35 100 69.716 2.815 7.573 25.414 1998 09 25 09 56 50.80 -4.35 100 55.676 1.761 7.328 25.514 1998 09 25 12 20 50.80 -4.35 100 52.597 1.637 7.328 26.328 1998 09 26 07 52 50.80 -4.35 100 70.004 2.852 7.549 26.403 1998 09 26 09 39 50.80 -4.35 100 57.424 1.842 7.597 26.451 1998 09 26 10 49 50.80 -4.35 100 52.910 1.648 7.525 27.340 1998 09 27 08 10 50.80 -4.35 100 67.870 2.602 8.301 27.341 1998 09 27 08 11 50.80 -4.35 100 67.641 2.578 8.355 27.443 1998 09 27 10 38 50.80 -4.35 100 53.744 1.680 8.161 27.490 1998 09 27 11 45 50.80 -4.35 100 52.520 1.634 8.236 28.374 1998 09 28 08 58 50.80 -4.35 100 62.233 2.121 8.384 28.544 1998 09 28 13 03 50.80 -4.35 100 56.267 1.787 8.137 29.350 1998 09 29 08 23 50.80 -4.35 100 66.697 2.483 8.333 29.391 1998 09 29 09 23 50.80 -4.35 100 59.930 1.976 8.161 29.511 1998 09 29 12 15 50.80 -4.35 100 54.004 1.691 7.793 29.540 1998 09 29 12 57 50.80 -4.35 100 56.258 1.787 7.965 30.490 1998 09 30 11 45 50.80 -4.35 100 53.700 1.679 7.672 30.560 1998 09 30 13 27 50.80 -4.35 100 58.964 1.922 7.672