DATA FILE NAME ../pingdata/pingdata.000 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   132  98/11/14  15:24:47  317.642211   41.5235   -70.6717   60   128     1     1

 DATA FILE NAME ../pingdata/pingdata.001 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1    18  98/11/14  17:36:48  317.733889   41.5235   -70.6718   60   128     1     1
    2   216  98/11/15  16:57:07  318.706331   41.4620   -70.7301   300   50     2     1

 DATA FILE NAME ../pingdata/pingdata.002 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   176  98/11/16  10:57:08  319.456343   41.2371   -67.6876   300   50     2     1
    2    74  98/11/17  01:39:04  320.068796   41.7714   -65.9610   300   50     2     1

 DATA FILE NAME ../pingdata/pingdata.003 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   250  98/11/17  07:49:05  320.325752   41.7455   -66.2771   300   50     2     1

 DATA FILE NAME ../pingdata/pingdata.004 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   250  98/11/18  04:39:06  321.193819   42.1215   -66.6899   300   50     2     1

 DATA FILE NAME ../pingdata/pingdata.005 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1   250  98/11/19  01:29:06  322.061875   42.1388   -66.6505   300   50     2     1

 DATA FILE NAME ../pingdata/pingdata.006 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1    74  98/11/19  22:19:06  322.929931   41.7785   -66.4605   300   50     2     1
    2     1  98/11/20  04:35:04  323.191019   42.2657   -65.8621   300   50     2     1
    3    31  98/11/20  04:46:08  323.198704   42.2997   -65.8411   300   50     8     0
    4    29  98/11/20  07:27:14  323.310579   41.8520   -65.9274   300   50     4     1
    5     7  98/11/20  09:58:17  323.415475   41.3811   -66.0368   300   50     8     0
    6    96  98/11/20  10:39:21  323.443993   41.4113   -66.0823   300   50     4     1
    7    11  98/11/20  18:45:27  323.781563   41.9381   -67.1079   300   50     4     1

 DATA FILE NAME ../pingdata/pingdata.007 
 head  prof   date      time      yearday        lat      lon      dt   nbins  binl  btrk
    1    12  98/11/20  19:40:27  323.819757   42.0031   -67.2854   300   50     4     1
    2    15  98/11/20  20:46:32  323.865648   42.0819   -67.4961   300   50     4     1
    3    34  98/11/20  22:07:37  323.921956   42.1043   -67.8044   300   50     8     0
    4    32  98/11/21  01:03:43  324.044248   42.1538   -68.5073   300   50     4     1
    5    39  98/11/21  03:49:48  324.159583   42.2004   -69.1752   300   50     8     0
    6    11  98/11/21  07:10:53  324.299225   42.2559   -69.9720   300   50     4     1
    7    72  98/11/21  08:11:58  324.341644   42.2764   -70.2042   300   50     4     1