% yyyymmddhhmm     segJulA     IWV  
%    (GMT)          (GMT)     kg/m2 
 201210150000     403531200     48.2508
 201210150030     403533000     48.3251
 201210150100     403534800     48.2158
 201210150130     403536600     48.9800
 201210150200     403538400     50.0192
 201210150230     403540200     49.7989
 201210150300     403542000     50.9144
 201210150330     403543800     51.5871
 201210150400     403545600     52.9009
 201210150430     403547400     52.7837
 201210150500     403549200     53.5602
 201210150530     403551000     53.0303
 201210150600     403552800     53.8912
 201210150630     403554600     54.3040
 201210150700     403556400     53.1592
 201210150730     403558200     53.1346
 201210150800     403560000     52.9130
 201210150830     403561800     54.6612
 201210150900     403563600     54.3780
 201210150930     403565400     53.9731
 201210151000     403567200     54.6928
 201210151030     403569000     54.9179
 201210151100     403570800     55.2996
 201210151130     403572600     55.7322
 201210151200     403574400     55.8493
 201210151230     403576200     55.9508
 201210151300     403578000     55.7410
 201210151330     403579800     55.2938
 201210151400     403581600     56.1058
 201210151430     403583400     55.7412
 201210151500     403585200     55.4286
 201210151530     403587000     54.9643
 201210151600     403588800     56.3265
 201210151630     403590600     55.4854
 201210151700     403592400     56.2522
 201210151730     403594200     56.5530
 201210151800     403596000     55.8167
 201210151830     403597800     55.5628
 201210151900     403599600     54.4826
 201210151930     403601400     54.0670
 201210152000     403603200     52.7835
 201210152030     403605000     52.1896
 201210152100     403606800     52.5590
 201210152130     403608600     52.7415
 201210152200     403610400     53.5340
 201210152230     403612200     53.6537
 201210152300     403614000     53.1774
 201210152330     403615800     52.6880