; PCFIT
;---------------------------------------------------------------
;! Finds delays and phases using a PC table
;# Task SPECTRAL UV CALIBRATION PLOT VLBI
;-----------------------------------------------------------------------
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;;
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;-----------------------------------------------------------------------
PCFIT     LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
PCFIT     Fits pulse-cal tables for delay and phase
INNAME                             Input UV file name (name)
INCLASS                            Input UV file name (class)
INSEQ             0.0     9999.0   Input UV file name (seq. #)
INDISK            0.0        9.0   Input UV file disk unit #
INVERS            0.0              Table version to plot
FREQID            0.0              Frequency ID code to plot.
SUBARRAY          0.0              Subarray to plot; 0 => 1
TIMERANG                           Range of times to include
NPIECE            0.0        90.0  Number of delays fit in each
                                   polarization, antenna, time
OPTYPE                             'TOTA' -> write total delays
                                   and phases, else write delay
                                   and phase differenced from
                                   first time
PRTLEV            0.0              > 0   print solutions,
                                   > 1.5 print initial guesses
----------------------------------------------------------------
PCFIT
Type:  Task
Use:   To fit delays and phases to PC-table data, writing a new SN
       table and a new PC table, the latter containing the residual PC
       values after the fit delays and phases are subtracted.

Adverbs:
  INNAME.....Input UV file name (name).      Standard defaults.
  INCLASS....Input UV file name (class).     Standard defaults.
  INSEQ......Input UV file name (seq. #).    0 => highest.
  INDISK.....Disk drive # of input UV file.  0 => any.
  INVERS.....Specifies the version of the PC table to be read as
             input.   0 -> highest.
  FREQID.....Specifies which frequency ID to fit.  0 => 1.
  SUBARRAY...The subarray number to be fit.  0 => 1.
  TIMERANG...Time range to be fit: start day, hour, min, sec, end day,
             hour, min, sec.
  NPIECE.....Break up IFs into NPIECE pieces for fit: 0 -> Number of
             IFs in PC table.  1 -> fit one delay to all IFs, 2 -> fit
             one delay to the first half of the IFs and a second to
             the second half, and so on.
  OPTYPE.....'TOTA' => write the delays and phases as they are fit to
             the PC table data.  Otherwise, write the current fit
             minus the values from the first time.
  PRTLEV.....> 0 -> print solutions with errors
             > 1.5 -L also print initial guess going into fitter
----------------------------------------------------------------