AIPS HELP file for VLBASNPL in 31DEC24
As of Thu Sep 12 13:58:35 2024
VLBASNPL: procedure to plot selected contents of SN or CL
INPUTS
INNAME UV data (name).
INCLASS UV data (class).
INSEQ 0.0 9999.0 UV data (seq. #). 0 => high
INDISK 0.0 9.0 Disk unit #. 0 => any
INEXT Input 'SN','CL'
INVERS Input table file version no.
SOURCES Source list
TIMERANG Time range to plot
STOKES Stokes type to plot: R, L,
RR, LL, RRLL, DIFF, RATO
SUBARRAY 0.0 Limit to subarray; 0 -> 1
OPTYPE Data to be plotted:
'PHAS','AMP ','DELA','RATE',
'DDLY',' '=phas.
DOTV -1.0 1.0 =1 plot to TV, <=0 make plot
file
HELP SECTION
VLBASNPL
Type: Procedure
Use: Plots selected calibration data versus time from a specified SN
or CL table to the TV.
Type RUN VLBAUTIL to make the VLBASNPL procedure
available.
Adverbs:
INNAME.....UV file name (name). Standard defaults.
INCLASS....UV file name (class). Standard defaults.
INSEQ......UV file name (seq. #). 0 => highest.
INDISK.....Disk unit #. 0 => any.
INEXT......'SN' or 'CL' table to be plotted, ''=>'CL'
INVERS.....Version number of table to plot, 0=>highest no.
SOURCES....Source list. '*' = all; a "-" before a source name means
all except ANY source named.
TIMERANG...Time range of the data to be plotted. In order: Start day,
hour, min. sec, end day, hour, min. sec. Days relative to
reference date.
STOKES.....The desired Stokes type of the displayed data:
'R' = RCP, 'L' = LCP, 'RL' or 'RRLL' both RCp and LCP
'DIFF' = difference between RCP and LCP.
'RATO' = ratio between RCP and LCP - done for amplitudes,
system and antenna temperatures, and SNRs only.
SUBARRAY...Limit display to specific subarray. -1 -> all, 0 -> 1.
OPTYPE.....Data to be plotted:
'PHAS' = phase,
'AMP ' = amplitude,
'DELA' = singleband delay
'RATE' = rate
'DDLY' = dispersive delay (CL only)
' ' => 'PHAS'
To check the results of VLBACALA set OPTYPE='AMP' and
INEXT='CL'
DOTV.......> 0 => plot directly on the TV device, otherwise make a
plot file for later display on one or more devices
(including the TV if desired).
EXPLAIN SECTION
VLBASNPL: Procedure to examine calibration in SN/CL tables
Documenter: Amy Mioduszewski
Related Programs: VLBAUTIL, SNPLT, VLBAFRPL
To check the calibration tables. This should be done all through
the calibration process but particularly to check the amplitude
corrections after running VLBACALA.
Steps in VLBASNPL:
Runs SNPLT. If OPTYPE='PHAS' then PIXRA=-180,180. Sets the
number of plots (NPLOT) to the number of antenna unless this
is greater than 12 then NPLOT=10.