% yyyymmddhhmm     segJulA     IWV  
%    (GMT)          (GMT)     kg/m2 
 201205180000     390571200     48.9930
 201205180030     390573000     48.9472
 201205180100     390574800     50.5015
 201205180130     390576600     50.4071
 201205180200     390578400     50.0545
 201205180230     390580200     50.6396
 201205180300     390582000     49.9806
 201205180330     390583800     49.4349
 201205180400     390585600     49.6095
 201205180430     390587400     48.9302
 201205180500     390589200     49.2397
 201205180530     390591000     50.1313
 201205180600     390592800     49.5510
 201205180630     390594600     49.7567
 201205180700     390596400     49.5955
 201205180730     390598200     50.3457
 201205180800     390600000     49.5530
 201205180830     390601800     50.2295
 201205180900     390603600     49.3111
 201205180930     390605400     50.2135
 201205181000     390607200     50.0619
 201205181030     390609000     51.3054
 201205181100     390610800     51.2810
 201205181130     390612600     52.3034
 201205181200     390614400     53.1689
 201205181230     390616200     53.2213
 201205181300     390618000     54.4019
 201205181330     390619800     55.8676
 201205181400     390621600     56.3583
 201205181430     390623400     56.7398
 201205181500     390625200     57.1390
 201205181530     390627000     58.2811
 201205181600     390628800     57.5958
 201205181630     390630600     55.5111
 201205181700     390632400     51.9200
 201205181730     390634200     51.3708
 201205181800     390636000     51.5851
 201205181830     390637800     51.8158
 201205181900     390639600     50.0834
 201205181930     390641400     50.3097
 201205182000     390643200     50.5125
 201205182030     390645000     49.7297
 201205182100     390646800     50.3304
 201205182130     390648600     49.8199
 201205182200     390650400     49.6654
 201205182230     390652200     49.0871
 201205182300     390654000     48.0345
 201205182330     390655800     48.5978