[daip] WSRT Tsys correction

M.A.W. Verheijen verheyen at astro.rug.nl
Mon Mar 4 10:25:23 EST 2013


Dear Eric,

many thanks for your reply.  You may have missed the CLCAL inputs at the
very bottom in my previous email, included again below.  Indeed,
SOURCES, CALSOUR etc were not specified so I was a bit surprised that
the Tsys corrections for the non-calibrator sources did not show up in
the CL-2 table.  I remember that some tasks balk if they don't recognize
the source as a bonfide calibrator.  For SETJY this makes perfect sense,
of course.  The a main purpose of CLCAL is to interpolate solutions in
time, I could imagine that CLCAL does not know how to deal with non-cal
sources.  Anyway, we tried all kinds of permutations of
including/excluding sources in the SOURCES and CALSOUR lists, but so far
nothing has yielded the expected results. 

 Thanks again!

 Marc



AIPS 3: CLCAL     Task to manage SN and CL calibration tables
AIPS 3: Adverbs     Values                 Comments
AIPS 3: ----------------------------------------------------------------
AIPS 3: INNAME     'PPOBS08'               Input UV file name (name)
AIPS 3: INCLASS    'UVDATA'                Input UV file name (class)
AIPS 3: INSEQ         1                    Input UV file name (seq. #)
AIPS 3: INDISK        1                    Input UV file disk unit #
AIPS 3: SOURCES    *all ' '                Source list to calibrate
AIPS 3: SOUCODE    ' '                     Source "Cal codes"
AIPS 3: CALSOUR    *all ' '                Cal sources for calibration
AIPS 3: QUAL         -1                    Source qualifier -1=>all
AIPS 3: CALCODE    ' '                     Calibrator code '    '=>all
AIPS 3: TIMERANG   *all 0                  Time range to calibrate
AIPS 3: SUBARRAY      0                    Subarray, 0=>all,
AIPS 3: ANTENNAS   *all 0                  Antennas selected, 0=> all
AIPS 3: SELBAND      -1                    Bandwidth to select (kHz)
AIPS 3: SELFREQ      -1                    Frequency to select (MHz)
AIPS 3: FREQID       -1                    Freq. ID to select.
AIPS 3: OPCODE     'CALI'                  Operation 'MERG','CALI',
AIPS 3:                                    'CALP'; ' ' => 'CALI'
AIPS 3: INTERPOL   'SELN'                  Interpolation function,
AIPS 3:                                    choices are: '2PT','SIMP',
AIPS 3:                                    'AMBG','CUBE','SELF','POLY',
AIPS 3:                                    'SELN'; see HELP for details
AIPS 3: CUTOFF        0                    Interpolation limit in
AIPS 3:                                    time (min); 0=> no limit.
AIPS 3: SAMPTYPE   'MWF'                   Smoothing function
AIPS 3: BPARM         0.2         0.2      Smoothing parameters
AIPS 3:               0.2         0.2         0.2      *rest 0
AIPS 3: ICUT          0.1                  Cutoff for functional forms
AIPS 3: DOBLANK      -1                    Blanked value interpolation
AIPS 3: DOBTWEEN     -1                    > 0 -> smooth all sources
AIPS 3:                                    together; else separate them
AIPS 3: SMOTYPE    ' '                     Data to smooth
AIPS 3: SNVER         1                    Input SN table, 0=>all.
AIPS 3: INVERS        1                    Upper SN table vers in a
AIPS 3:                                    range.  0=>SNVER
AIPS 3: GAINVER       1                    Input Cal table 0=>high
AIPS 3: GAINUSE       2                    Output CAL table 0=>high+1
AIPS 3: REFANT        8                    Reference antenna 0=>pick.
AIPS 3: BADDISK    *all 0                  Disks to avoid for scratch



-- 
*************************************************************************
* Marc A.W. Verheijen                                                   *
* Kapteyn Astronomical Institute    Phone : +31-50-363-4077             *
* Postbus 800                       FAX   : +31-50-363-6100             *
* 9700 AV  Groningen                Email : verheyen at astro.rug.nl       *
* The Netherlands                   URL   : www.astro.rug.nl/~verheyen  *
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