AIPS HELP file for UVPRT in 31DEC24
As of Fri Apr 26 18:01:16 2024
UVPRT: Prints data from a u,v data base: with calibration
INPUTS
INNAME Input UV file name (name)
INCLASS Input UV file name (class)
INSEQ 0.0 9999.0 Input UV file name (seq. #)
INDISK Input UV file disk unit #
SOURCES Sources to print, ' '=>all.
QUAL -10.0 Qualifier -1=>all
CALCODE Calibrator code ' '=>all
STOKES Stokes type to select.
SELBAND Bandwidth to select (kHz)
SELFREQ Frequency to select (MHz)
FREQID Freq. ID to select.
TIMERANG Time range to select
ANTENNAS Antennas to print
BASELINE Baselines with ANTENNAS
UVRANGE UV range in kilolambda.
SUBARRAY 0.0 1000.0 Subarray, 0 => 1
CHANNEL 0.0 4096.0 Spectral channel #
BIF IF number to print
DOCALIB -1.0 101.0 > 0 calibrate data & weights
> 99 do NOT calibrate weights
GAINUSE CAL (CL or SN) table to apply
DOPOL -1.0 10.0 If >0 correct polarization.
PDVER PD table to apply (DOPOL>0)
BLVER BL table to apply.
FLAGVER Flag table version
DOBAND -1.0 10.0 If >0 apply bandpass cal.
Method used depends on value
of DOBAND (see HELP file).
BPVER Bandpass table version
SMOOTH Smoothing function. See
HELP SMOOTH for details.
DOACOR -1.0 1.0 Include autocorrelations?
BPRINT 0.0 # of first sample. 0 => 1
NPRINT 0.0 # of sample. 0 => 1 page.
XINC 0.0 10000.0 List every XINC'th comp.
WTUV 0.0 1000.0 Scale UVW by * WTUV
0 => 0.001
DPARM 1 : <0 => Range of (U,V,W),
amplitude and weight is
determined automatically;
>= 0 => Ranges are fixed
minimize the run time.
2 : Maximum weight; 0 => 9.9
3 : Minimum weight; 0 => 0.11
4 : Maximum amplitude; 0=>99
5 : Maximum of ABS(U),ABS(V),
ABS(W) in klambda;
0 => 10000
6 : > 0 -> phases from -90
to +269
7: 0=> Print amp, phas
1=> Print Re, Im instead
10: Multiply amplitude by
DPARM(10). 0 -> 1
DOCRT -3.0 132.0 > 0 -> use the terminal,
else use the line printer
> 72 => terminal width
OUTPRINT
Printer disk file to save
BADDISK Disk to avoid for scratch.
HELP SECTION
UVPRT
Type: Task
Use: Prints data from a u,v data base, optionally making a retained
text file. UVPRT differs from PRTUV in that calibration
information can be applied before printing. If calibration
information is to be applied the data must be in TB sort order.
UVPRT also displays seconds of time in floating point where
possible and does not display a "visibility number" since that is
not meaningful under the calibration package. UVPRT no longer
does anything special for holography data; see UVHOL.
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.
SOURCES....List of sources to be printed. ' '=> all; if any
starts with a '-' then all except ANY source named.
QUAL.......Qualifier of source to be printed. -1 => all.
CALCODE....Calibrator code of sources to print. ' '=> all.
STOKES.....The desired Stokes type of the printed data:
'I','Q','U','V','RR','LL' select a single Stokes or
correlator, 'IV', 'QU', 'HALF' select 2 Stokes or
correlators, 'IQUV' selects 4 Stokes, else 'FULL' is used
for 4 correlators.
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
overide that of FREQID. However, setting SELBAND and
SELFREQ may result in an ambiguity. In that case, the task
will request that you use FREQID. If all SELBAND, SELFREQ
and FREQID are not specified (.le. 0) then all FQ ids will
be selected.
TIMERANG...Time range of the data to be printed. In order: Start day,
hour, min. sec, end day, hour, min. sec. Days relative to
reference date.
ANTENNAS...A list of the antennas to print. If any number is negative
then all antennas listed are NOT desired and all others
are. All 0 => list all.
BASELINE...Baselines are specified using BASELINE. E.g. for baselines
1-6,1-8, 2-6 and 2-8, use ANTENNAS=1,2; BASELINE=6,8.
UVRANGE....Range of projected spacings to be printed in 1000's of
wavelengths. 0 => 1, 1.E10
SUBARRAY...Subarray number to print. 0 => 1.
CHANNEL....Spectral line channel number. 0 => 1.
BIF........IF number to print. 0 => 1
DOCALIB....If true (>0), calibrate the data using information in the
specified Cal (CL) table for multi-source or SN table for
single-source data. Also calibrate the weights unless
DOCALIB > 99 (use this for old non-physical weights).
GAINUSE....Version number of the Cal. table to apply to the data if
DOCALIB=1. Refers to a CL table for multi-source data or
an SN table for single source. 0 => highest.
DOPOL......If > 0 then correct data for instrumental polarization as
represented in the AN or PD table. This correction is
only useful if PCAL has been run or feed polarization
parameters have been otherwise obtained. See HELP DOPOL
for available correction modes: 1 is normal, 2 and 3 are
for VLBI. 1-3 use a PD table if available; 6, 7, 8 are
the same but use the AN (continuum solution) even if a PD
table is present.
PDVER......PD table to apply if PCAL was run with SPECTRAL true and
0 < DOPOL < 6. <= 0 => highest.
BLVER......Version number of the baseline based calibration (BL) table
to apply. <0 => apply no BL table, 0 => highest.
FLAGVER....Specifies the version of the flagging table to be applied.
0 => highest numbered table. <0 => no flagging to be
applied.
DOBAND.....(multisource) If true (>0) then correct the data for the
shape of the antenna bandpasses using the BP table
specified by BPVER. The correction has five modes:
(a) if DOBAND=1 all entries for an antenna in the table
are averaged together before correcting the data.
(b) if DOBAND=2 the entry nearest in time (including
solution weights) is used to correct the data.
(c) if DOBAND=3 the table entries are interpolated in
time (using solution weights) and the data are then
corrected.
(d) if DOBAND=4 the entry nearest in time (ignoring
solution weights) is used to correct the data.
(e) if DOBAND=5 the table entries are interpolated in
time (ignoring solution weights) and the data are then
corrected.
BPVER......(multi-source) specifies the version of the BP table to be
applied. 0 => highest numbered table.
SMOOTH.....Specifies the type of spectral smoothing to be applied to
a uv database . The default is not to apply any smoothing.
The elements of SMOOTH are as follows:
SMOOTH(1) = type of smoothing to apply: 0 => no smoothing
To smooth before applying bandpass calibration
1 => Hanning, 2 => Gaussian, 3 => Boxcar, 4 => Sinc
To smooth after applying bandpass calibration
5 => Hanning, 6 => Gaussian, 7 => Boxcar, 8 => Sinc
SMOOTH(2) = the "diameter" of the function, i.e. width
between first nulls of Hanning triangle and sinc
function, FWHM of Gaussian, width of Boxcar. Defaults
(if < 0.1) are 4, 2, 2 and 3 channels for SMOOTH(1) =
1 - 4 and 5 - 8, resp.
SMOOTH(3) = the diameter over which the convolving
function has value - in channels. Defaults: 1,3,1,4
times SMOOTH(2) used when input SMOOTH(3) < net
SMOOTH(2).
DOACOR.....> 0 -> include autocorrelation data
BPRINT.....Start listing at the BPRINT'th data point selected BEFORE
applying the above criteria. (N.b. this is a change made 2
May 1997; previously BPRINT applied after application of
the other sselection criteria.)
NPRINT.....List NPRINT data points (after all data selection has been
applied). 0 => 30000 on CRT or to a file, 1 page on printer.
To printer the maximum printed is 2000 points, if printed
to a file there is no limitation.
Be aware that UVPRT now goes through the data to be printed
twice, once to determine the u-v-w, data, and weight ranges
and the second time to print things. Using NPRINT to
reduce the time required by the first pass helps when DOCRT
is true.
XINC.......List every XINC'th data point from those matching the above
criteria. 0 => 1.
WTUV.......Scale the U, V, and W values in wavelengths by multiplying
by WTUV. 0 => 0.001, i.e. Kilo wavelengths.
DPARM......Range of (U,V,W), amplitude and weight:
(1) : < 0 => Range of (U,V,W), amplitude and weight is
determined automatically; If the data are large, the
time for required additional pass of the data to provide
the scaling can be rather large. To eliminate this extra
pass use DPARM(1)=0.
>= 0 => The ranges are fixed to the following values:
(2) : Maximum weight; 0 => 9.9
(3) : Minimum weight; 0 => 0.11
NOTE: non-zero weights that would, due to scaling, be
printed as "0" will be shown as "-1" or "1" depending
on their sign.
(4) : Maximum amplitude; 0=>99
(5) : Maximum of ABS(U),ABS(V),ABS(W) in lambda times WTUV
(normally klambda); 0 => 10000
(6) : > 0 => print phases from -90 to +269, otherwise from
-180 to +180. The former gives a blank space between
the amplitude and phase at all times.
(7) : 0 => Print amp, phase
1 => Print real and imaginary
(10) : Multiplier for amplitudes.
DOCRT......False (<= 0) use the line printer if OUTPRINT = ' '
else write named OUTPRINT file only.
When OUTPRINT is not blank, DOCRT=-2 suppresses the
page-feed character on page headers and DOCRT=-3
suppresses page headers and most other header
information. When OUTPRINT is blank, the line
printer will be used. UV PRT now counts the lines
to be printed before printing any and asks for
permission to continue if the count > 500.
True (> 0) use the terminal interactively. The task will
use the actual terminal width as a display limit
unless 72 < DOCRT < width. In that case, the display
limit will be DOCRT characters.
OUTPRINT...Disk file name in which to save the line printer output.
' ' => use scratch and print immediately for interactive
jobs - batch jobs use OUTPRINT = 'PRTFIL:BATCHjjj.nnn'
(jjj= job #, nnn = user #). When OUTPRINT is not blank,
multiple outputs are concatenated, and the file is not
actually printed.
BADDISK....Disk numbers to avoid for scratch files. Scratch files may
be created by the sorting routines if calibration or
flagging is applied.
EXPLAIN SECTION