% yyyymmddhhmm     segJulA     IWV  
%    (GMT)          (GMT)     kg/m2 
 201205180000     390571200     47.5597
 201205180030     390573000     48.9048
 201205180100     390574800     51.1292
 201205180130     390576600     52.1697
 201205180200     390578400     53.0460
 201205180230     390580200     52.6905
 201205180300     390582000     53.7770
 201205180330     390583800     56.1080
 201205180400     390585600     55.7581
 201205180430     390587400     54.6228
 201205180500     390589200     54.6853
 201205180530     390591000     52.5627
 201205180600     390592800     50.7763
 201205180630     390594600     52.8815
 201205180700     390596400     52.8714
 201205180730     390598200     52.7372
 201205180800     390600000     53.0240
 201205180830     390601800     53.7735
 201205180900     390603600     53.8804
 201205180930     390605400     52.9513
 201205181000     390607200     52.9903
 201205181030     390609000     53.9033
 201205181100     390610800     53.5801
 201205181130     390612600     54.7681
 201205181200     390614400     54.6579
 201205181230     390616200     55.3342
 201205181300     390618000     57.7603
 201205181330     390619800     57.8391
 201205181400     390621600     56.3478
 201205181430     390623400     56.1364
 201205181500     390625200     56.0927
 201205181530     390627000     55.7767
 201205181600     390628800     58.4147
 201205181630     390630600     58.2119
 201205181700     390632400     59.4782
 201205181730     390634200     54.0348
 201205181800     390636000     52.8623
 201205181830     390637800     50.0404
 201205181900     390639600     50.0538
 201205181930     390641400     51.4362
 201205182000     390643200     52.8612
 201205182030     390645000     52.5449
 201205182100     390646800     51.7585
 201205182130     390648600     53.5593
 201205182200     390650400     52.3079
 201205182230     390652200     52.3566
 201205182300     390654000     51.9013
 201205182330     390655800     52.1275