AIPS HELP file for PCFIT in 31DEC21
As of Wed May 5 15:47:24 2021
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
SOLINT Time averaging interval (min)
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
CUTOFF 0.0 If delay changes by > CUTOFF
ns, set a new zero 0 -> 100
PRTLEV 0.0 > 0 print solutions,
> 1.5 print initial guesses
BADDISK Disks to avoid for scratch
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.
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.
SOLINT.....Time averahing interval in minutes. -1 => scan average.
0 => fit each sample individually.
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 ("zero point").
CUTOFF.....If the delay changes by more than CUTOFF ns, issue a
message and reset the zero point. 0 -> 100 ns
< 0 -> do not do this.
PRTLEV.....> 0 -> print solutions with errors
> 1.5 -L also print initial guess going into fitter
BADDISK....The disk numbers to avoid for scratch files (sorting