% yyyymmddhhmm     segJulA     IWV  
%    (GMT)          (GMT)     kg/m2 
 201312180000     440596800     54.1233
 201312180030     440598600     53.7224
 201312180100     440600400     53.7891
 201312180130     440602200     53.8922
 201312180200     440604000     54.2129
 201312180230     440605800     55.3665
 201312180300     440607600     55.9297
 201312180330     440609400     56.0937
 201312180400     440611200     57.5670
 201312180430     440613000     58.8783
 201312180500     440614800     58.6137
 201312180530     440616600     58.2581
 201312180600     440618400     59.1376
 201312180630     440620200     59.8256
 201312180700     440622000     60.8290
 201312180730     440623800     61.7557
 201312180800     440625600     62.1731
 201312180830     440627400     60.6101
 201312180900     440629200     63.4598
 201312180930     440631000     59.8920
 201312181000     440632800     59.8613
 201312181030     440634600     59.1648
 201312181100     440636400     60.4328
 201312181130     440638200     61.9162
 201312181200     440640000     63.1923
 201312181230     440641800     62.3502
 201312181300     440643600     62.4709
 201312181330     440645400     62.4501
 201312181400     440647200     62.8329
 201312181430     440649000     62.8916
 201312181500     440650800     63.8475
 201312181530     440652600     64.4157
 201312181600     440654400     63.0854
 201312181630     440656200     62.1522
 201312181700     440658000     62.1865
 201312181730     440659800     61.3992
 201312181800     440661600     60.6852
 201312181830     440663400     61.0266
 201312181900     440665200     60.6397
 201312181930     440667000     60.5920
 201312182000     440668800     60.3368
 201312182030     440670600     59.7595
 201312182100     440672400     60.0124
 201312182130     440674200     60.0821
 201312182200     440676000     60.8174
 201312182230     440677800     61.7135
 201312182300     440679600     62.6299
 201312182330     440681400     62.6944