AIPS HELP file for RLCOR in 31DEC22
As of Thu Mar 23 7:31:25 2023
RLCOR: Corrects data set for R-L phase differences
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 #
SELBAND Bandwidth to select (kHz)
SELFREQ Frequency to select (MHz)
FREQID Freq. ID to select
SUBARRAY 0.0 1000.0 Sub-array, 0=>all
BIF Low IF number to do
EIF Highest IF number to do
OUTNAME Output UV file name (name)
OUTCLASS Output UV file name (class)
OUTSEQ -1.0 9999.0 Output UV file name (seq. #)
OUTDISK 0.0 9.0 Output UV file disk unit #.
FQCENTER >= 0 -> center frequency axis
CLCORPRM Right-left phase differences
for IFs BIF to EIF (as CLCOR)
Task: This task will copy a uv-data set applying a right-left phase
correction to as many as 20 IFs. Basically, this allows the
CLCOR operation POLR to be applied to single-source files,
The PCAL solutions (if any) in the appropriate AN table will be
adjusted as is done by CLCOR.
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.
SELBAND....Bandwidth of data to be selected. If more than one IF is
present SELBAND is the width of the first IF required.
Units = kHz. For data which contain multiple
bandwidths/frequencies the task will insist that some form
of selection be made by frequency or bandwidth.
SELFREQ....Frequency of data to be selected. If more than one IF is
present SELFREQ is the frequency of the first IF required.
Units = MHz.
FREQID.....Frequency identifier to select (you may determine which is
applicable from the OPTYPE='SCAN' listing produced by
LISTR). If either SELBAND or SELFREQ are set, their values
override that of FREQID. However, setting SELBAND and
SELFREQ may result in an ambiguity. In that case, the task
will request that you use FREQID.
SUBARRAY...Sub-array number to copy. 0=>all.
BIF........First IF to include. 0 -> 1.
EIF........Last IF to include. 0 -> max.
OUTNAME....Output UV file name (name). Standard defaults.
OUTCLASS...Output UV file name (class). Standard defaults.
OUTSEQ.....Output UV file name (seq. #). 0 => highest unique
OUTDISK....Disk drive # of output UV file. 0 => highest with space
for the file.
FQCENTER,...>= 0 => Change frequency axis reference pixel to
Nchan / 2 + 1
else => do not change reference pixel
CLCORPRM...Right-Left phase difference in degrees to be applied
to IF number BIF, BIF+1, BIF+2, ..., EIF (as many as 20
may be specified). If there are more than 20 IFs, the
task will have to be run more than once, using the output
of the previous pass as input to the current pass.