AIPS NRAO AIPS HELP file for RIRMS in 31DEC21



As of Mon Nov 29 13:41:48 2021


UVRMS LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC UVRMS Computes statistics of a subset of a uv data set 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 # SOURCES Source name QUAL -10.0 Calibrator qualifier -1=>all CALCODE Calibrator code ' '=>all STOKES Stokes of output TIMERANG Time range to use SELBAND Bandwidth to select (kHz) SELFREQ Frequency to select (MHz) FREQID Freq. ID to select. ANTENNAS Antennas to plot 0=>all BASELINE Baselines with ANTENNAS UVRANGE UV range in kilolambda. SUBARRAY 0.0 1000.0 Sub-array, 0=>all BIF Low IF number included EIF Highest IF number included BCHAN 0.0 First channel included ECHAN 0.0 last channel included DOCALIB -1.0 101.0 > 0 calibrate data & weights > 99 do NOT calibrate weights GAINUSE CL (or SN) table to apply DOPOL -1.0 10.0 If >0.5 correct polarization. PDVER PD table to apply (DOPOL>0) BLVER BL table to apply. FLAGVER Flag table version DOBAND -1.0 10.0 If >0.5 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. SOLINT Averaging time (min) NDIG 5.0 Number digits in matrix print. 0 -> fit >= 2 DOCRT -3.0 132.0 = 0 -> no matrix print > 0 -> use the terminal, else use the line printer > 72 => terminal width OUTPRINT Printer disk file to save DOPLOT 7.0 1,3,5,7 => plot the histogram of RMSes 2,3,6,7 => plot vs time 4,5,6,7 => plot the histogram of MEANs FACTOR Scale plotted points NBOXES Number boxes in histogram CUTOFF Histogram +- CUTOFF*rms FUNCTYPE 'LG' use LOG10 in hist. plot APARM (1,2) Plot range of time plot DOTV > 0 -> plot on TV, else make a plot file GRCHAN Graphics channel to use LTYPE -410.0 410.0 Type of labeling: 1 border, 2 no ticks, 3 - 6 standard, 7 - 10 only tick labels <0 -> no date/time BADDISK Disks to avoid for scratch
UVRMS
Task:  This task applies calibration to a selected subset of a uv
       data file and then averages all included data over the
       included sectral channels and IFs and the stated averaging time.
       The resulting list of values for mean and rms as a function of
       time and baseline are analyzed for there mean and rms.  These are
       then printed in a matrix form.  Following that plots of these
       values as a functions of time and as histograms may be generated.

       Note that this task depends on having a number of spectral
       channels and IFs and times in each group in order to form a
       reasonable rms and mean.

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....Source to be included.   '  '=> all; if any starts with a
             '-' then all except ANY source named.
  QUAL.......Qualifier of source to be included. -1 => all.
  CALCODE....Calibrator code of sources to include. ' '=> all.
  STOKES.....Specifies which 2 STOKES parameters are included.
             Values allowed are 'HALF', 'RLLR', and 'XYYX'
  TIMERANG...Time range of the data to be included. In order: Start day,
             hour, min. sec, end day, hour, min. sec. Days relative to
             ref. date.
  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.
  ANTENNAS...A list of the antennas to be plotted.  All 0 => all.
             Note that the values are computed for all baselines.
             ANTENNAS only controls which baselines are plotted.
             If any number is negative then all antennas listed are NOT
             iplotted and all others are.
  BASELINE...Baselines between antennas named in ANTENNAS and those
             named in BASELINE are selected..  There are four possible
             combinations of ANTENNAS and BASELINE:
             1. ANTENNAS = 0; BASELINE = 0.
                All possible baselines are selected.
             2. ANTENNAS <>0; BASELINE = 0.
                a)All ANTENNAS > 0
                  Baselines including an antenna in the ANTENNAS list
                  are selected;
                b)Some ANTENNAS < 0
                  All baselines NOT including an antenna in the ANTENNAS
                  list are selected;
             3. ANTENNAS = 0; BASELINE <> 0.
                a)All BASELINE > 0
                  Baselines including an antenna in the BASELINE list
                  are selected;
                b)Some BASELINE < 0
                  All baselines NOT including an antenna in the BASELINE
                  list are selected;
             4. ANTENNAS <> 0; BASELINE <> 0.
                a)All ANTENNAS>0 and all BASELINE>0
                  Baselines between antennas named in ANTENNAS and those
                  named in BASELINE are selected.
                b)Some ANTENNAS<0 .OR. some BASELINE<0
                  Baselines between antennas named in ANTENNAS  and
                  those named in BASELINE are DE-selected, all others
                  are selected.
  UVRANGE....Range of projected spacings to be plotted in 1000's of
             wavelengths.  0  =>  1, 1.E10
  SUBARRAY...Sub-array number to include. 0=>all.
  BIF........First IF to include.  0 -> 1.
  EIF........Last IF to include.   0 -> max.
  BCHAN......First channel to include. 0=>all.
  ECHAN......Highest channel to include. 0=>all higher than BCHAN
  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 CL table to apply to multi-source
             files or the SN table for single source files.
             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.....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.
             IMAGR uses DOBAND as the nearest integer; 0.1 is therefore
             "false".
  BPVER......Specifies the version of the BP table to be applied
                0 => highest numbered table.
               <0 => no bandpass correction to be applied.
  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).
  SOLINT.....Averaging time in minutes: 0 -> 0.007
  NDIG.......Number of digits to use in matrix print.  Will actually
             use 1 more for a blank or minus sign.
  DOCRT......= 0 -> do not print the matrix average values
             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.  PRTSY 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.
  DOPLOT.....1,3,5,7=> plot the histogram of the RMS samples using
                       the following adverbs
             2,3,6,7 => plot the averaged values versus time
             4,5,6,7=> plot the histogram of the MEAN samples using
                       the following adverbs
             0 => no plots, only the printed matrices
  FACTOR.....Scale plotted points by FACTOR (in the time plots).
             0 -> 1
  NBOXES.....Number boxes in histogram: 6 - 1024.  < 6 -> 128.
             A smaller number may be used depending on the number of
             time samples.  Histograms with too few samples per bin
             are not very useful.
  CUTOFF.....Each histogram is computed in the range +- CUTOFF * rms
             about the mean of that parameter.   0 -> 3.
  FUNCTYPE...'LG' use log of histogram value in plot
  APARM......Plot range of values in time plot.  APARM(2) <= APARM(1)
             -> self scale.
  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).
  GRCHAN.....Graphics channel to use.  0 -> multiple
  LTYPE......Labelling type, see HELP LTYPE for details:
             1 = border, 2 = no ticks, 3 or 7 = standard, 4 or 8 =
             relative to ref. pixel, 5 or 9 = relative to subimage
             (BLC, TRC) center, 6 or 10 = pixels.  7-10 all labels
             other than tick numbers and axis type are omitted.
             Less than 0 is the same except that the plot file
             version number and create time are omitted.
             Add n * 100 to alter the metric scaling.
  BADDISK....The disk numbers to avoid for scratch files (sorting
             tables mostly).


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