chktc

     Syntax: chktc [cusp_id] [pin] [set] [dt]
   Function: Scans the irig-e time code sample series found in the event .grm
             file for the correct number of samples per time code pulse.  Lists
             all occurences where the number of data samples per pulse does not
             equal the expected value (see example).  Program output lists the
             pulse counts, ending sample offset from the start of the series,
             the "calculated" time at end of pulse with abnormal count and a
             time correction.  The correction can be added to the stated time
             to recover "true" time only if the sampling interval is correct
             and the counts-per-pulse constant is correct. These constants
             cannot be assumed to be correct.

      Input: 4 optional arguments; 3 integer and 1 real.  Except for id, the
             program assumes last values specified until changed.

         cusp_id = id of event .mem file.  If not specified, interactive mode
                   is assumed, the program will prompt for input arguments.  In
                   interactive mode the program loops back to prompt; to exit
                   type ^Z or enter an cusp_id less than or equal to "0".

             pin = integer number of time code channel in .mem file;
                   DEFAULT = 1

             set = integer number of data set in .mem file; DEFAULT = 1

             dt  = ideal sample interval (seconds). DEFAULT = 0.01 seconds.

  Example


     $pwd
      data/92/92jul

     $ls x123587.mem
       x123587.mem
       (check for existance of data file

     $chktc 123587 2
      cusp_mem_id:      123587
       tc:irg2     max_tc_samples: 10400   cnts_per_pulse: 10   pin:   2 set:  1
       tc_test_pulses:         100  average time_pulse_height:   314.1327
       1st_pulse sample_cnt: 4   expected last_pulse sample_cnt:  10394
       pulse_cnts    end_offset             t               ?tcorr(s)?
              09           5203   1988 sep  9 1147 21.89   0.010 0.010
       pulses expected:        1039 found:        1039
       number of corrupted time intervals:           1