DATA FILE NAME ../pingdata/PINGDATA.000 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1     1  98/02/02  19:01:40  32.792824   41.5235   -70.6717   300   50     2     1
    2    18  98/02/07  14:48:23  37.616933  99999996802856925000000000000000000000.0000  99999996802856925000000000000000000000.0000   300   50     2     1
    3   231  98/02/07  16:21:06  37.681319   41.1961   -70.8735   300   50     2     1

 DATA FILE NAME ../pingdata/PINGDATA.001 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   250  98/02/08  11:36:06  38.483403   40.4681   -68.9728   300   50     2     1

 DATA FILE NAME ../pingdata/PINGDATA.002 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   250  98/02/09  08:26:07  39.351470   40.6756   -67.7792   300   50     2     1

 DATA FILE NAME ../pingdata/PINGDATA.003 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   250  98/02/10  05:16:06  40.219514   40.9441   -67.3288   300   50     2     1

 DATA FILE NAME ../pingdata/PINGDATA.004 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   156  98/02/11  02:06:07  41.087581   41.2329   -66.9734   300   50     2     1
    2    94  98/02/11  15:16:11  41.636238   40.9050   -66.4686   300   50     2     1

 DATA FILE NAME ../pingdata/PINGDATA.005 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   177  98/02/11  23:06:09  41.962604   41.3048   -66.6041   300   50     2     1
    2    73  98/02/12  13:57:35  42.581655   41.7449   -66.5783   300   50     2     1

 DATA FILE NAME ../pingdata/PINGDATA.006 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   250  98/02/12  20:02:35  42.835127   41.5475   -66.0286   300   50     2     1

 DATA FILE NAME ../pingdata/PINGDATA.007 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   250  98/02/13  16:52:36  43.703194   42.1435   -66.0111   300   50     2     1

 DATA FILE NAME ../pingdata/PINGDATA.008 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   250  98/02/14  13:42:36  44.571250   42.0803   -66.4425   300   50     2     1

 DATA FILE NAME ../pingdata/PINGDATA.009 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   250  98/02/15  10:32:36  45.439306   42.1274   -67.0415   300   50     2     1

 DATA FILE NAME ../pingdata/PINGDATA.010 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   101  98/02/16  07:22:36  46.307361   41.9999   -67.6157   300   50     2     1
    2   149  98/02/16  18:12:45  46.758854   41.8529   -68.3272   300   50     2     1

 DATA FILE NAME ../pingdata/PINGDATA.011 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   150  98/02/17  06:37:42  47.276181   41.3737   -68.3696   300   50     2     1