[daip] Using source models in FRING

Lincoln Greenhill lincoln at play.harvard.edu
Tue May 23 11:28:56 EDT 2000


Dear Leonia,

We are running FRING on a multi-source file that contains VLBA data.

We are supplying FRING with a source model though IN2NA, etc.

The source model has two fields, each with on the order of 100 CCs.

We do not receive a message from FRING that it is using a particular
number of CCs to construct the model.

Were we running CALIB, we would receive such a message.

I would like to make absolutely certain that FRING is in fact using the
source model information we give it, in the form of CCs.

Can you please interpret the following output messages from FRING and/or
double-check the code of FRING itself?

The inputs follow the list of messages.

Thank you very much for your help.


Regards,

Lincoln

P.S. Please direct replies to jmonnier at cfa, with a cc: to me.
P.P.S.  Note that the complaint about a nonuniform grid may occur because
the UV file has multiple FREQIDs.  However, within each FREQID, the
spacing is uniform.  You may find that the trigger for this message needs
updating - or perhaps I am missing something.


-----

FRING1: Task FRING  (release of 15OCT99) begins
FRING1: You are using a non-standard program
FRING1: Selecting, editing and calibrating the data
FRING1: SETGDS: imaging done with one tangent plane
FRING1: VISDFT: Begin DFT component division
FRING1: VISDFT: Model components of type Point
FRING1: I Polarization model processed
FRING1: Model computation is    10 percent complete
FRING1: Model computation is    20 percent complete
FRING1: Model computation is    30 percent complete
FRING1: Model computation is    40 percent complete
FRING1: Model computation is    50 percent complete
FRING1: Model computation is    60 percent complete
FRING1: Model computation is    70 percent complete
FRING1: Model computation is    80 percent complete
FRING1: Model computation is    90 percent complete
FRING1: Model computation is   100 percent complete
FRING1: Determining solutions
FRING1: Doing Least Squares fits for multi and single band delays
FRING1: Writing SN table   16
FRING1: FREQUENCIES DO NOT LIE ON A UNIFORM GRID.
FRING1: THIS MAY DEGRADE DETERMINATION OF DELAYS.
FRING1: Found     1348 good solutions
FRING1: Appears to have ended successfully
FRING1: rgalp6 15OCT99 NEW: Cpu=   449.2  Real=   474  IO=     27114


AIPS 1: FRING:  Task to fringe fit data
AIPS 1: Adverbs         Values            Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1:                                    Input uv data.
AIPS 1: INNAME     'MULTI       '             UV file name (name)
AIPS 1: INCLASS    'UVDATA'                   UV file name (class)
AIPS 1: INSEQ         1                       UV file name (seq. #)
AIPS 1: INDISK        4                       UV file disk drive #
AIPS 1:                                    Data selection (multisource):
AIPS 1: CALSOUR    'J1833-2103      '      Calibrator sources
AIPS 1:            *rest ' '
AIPS 1: QUAL         -1                    Calibrator qualifier -1=>all
AIPS 1: CALCODE    '    '                  Calibrator code '    '=>all
AIPS 1: SELBAND      -1                    Bandwidth to select (kHz)
AIPS 1: SELFREQ      -1                    Frequency to select (MHz)
AIPS 1: FREQID        2                    Freq. ID to select.
AIPS 1: TIMERANG   *all 0                  Time range to use.
AIPS 1: BCHAN         1                    Lowest channel number 0=>all
AIPS 1: ECHAN         0                    Highest channel number
AIPS 1: ANTENNAS   *all 0                  Antennas to select. 0=all
AIPS 1: DOFIT      *all 0                  Subset of ANTENNAS list
AIPS 1:                                    for which solns are desired.
AIPS 1:                                    0 => solve for all antennas
AIPS 1:                                    implied by ANTENNAS list
AIPS 1: SUBARRAY      0                    Subarray, 0=>all
AIPS 1: UVRANGE       0           0        Range of uv distance for full
AIPS 1:                                    weight
AIPS 1: WTUV          0                    Weight outside UVRANGE 0=0.
AIPS 1:
AIPS 1:                                    Cal. info for input:
AIPS 1: DOCALIB       1                    If >0 calibrate data
AIPS 1: GAINUSE       4                    CL table to apply.
AIPS 1: FLAGVER       2                    Flag table version
AIPS 1: DOBAND        1                    If >0 apply bandpass cal.
AIPS 1:                                    Method used depends on value
AIPS 1:                                    of DOBAND (see HELP file).
AIPS 1: BPVER         4                    Bandpass table version
AIPS 1: SMOOTH     *all 0                  Smoothing function. See
AIPS 1:                                    HELP SMOOTH for details.
AIPS 1:
AIPS 1:                                    CLEAN map (optional)
AIPS 1: IN2NAME    'LENS.X      '             Cleaned map name (name)
AIPS 1: IN2CLASS   'ICLN  '                   Cleaned map name (class)
AIPS 1: IN2SEQ       14                       Cleaned map name (seq. #)
AIPS 1: IN2DISK       4                       Cleaned map disk unit #
AIPS 1: INVERS        1                    CC file version #.
AIPS 1: NCOMP      *all 0                  # comps to use for model.
AIPS 1:                                    1 value per field
AIPS 1: FLUX          0                    Lowest CC component used.
AIPS 1: NMAPS         2                    No. Clean map files
AIPS 1: SMODEL     *all 0                  Source model, 1=flux,2=x,3=y
AIPS 1:                                    See HELP SMODEL for models.
AIPS 1:
AIPS 1:                                    Output uv data file.
AIPS 1: OUTNAME    'LENS.X      '             UV file name (name)
AIPS 1: OUTCLASS   'ICLN  '                   UV file name (class)
AIPS 1: OUTSEQ       14                       UV file name (seq. #)
AIPS 1: OUTDISK       4                       UV file disk drive #
AIPS 1:
AIPS 1:                                    Solution control adverbs:
AIPS 1: REFANT        4                    Reference antenna
AIPS 1: SEARCH     *all 0                  Prioritized reference antenna
AIPS 1:                                    list - supplements REFANT
AIPS 1: ** press RETURN for more, enter Q or next line to quit print **
#
AIPS 1:                                    - but only if APARM(9)>0
AIPS 1: SOLINT        2                    Solution interval (min)
AIPS 1:                                    0 => 10 min
AIPS 1:
AIPS 1: APARM         3           0        General parameters
AIPS 1:               0           0           1=min. no. antennas
AIPS 1:               2        *rest 0        2 > 0 => data divided
AIPS 1:                                       3 > 0 => avg. RR,LL
AIPS 1:                                       4 > 0 => avg. freq. in IFs
AIPS 1:                                       5 > 0 => combine IFs.
AIPS 1:                                       6=print level, 1=some
AIPS 1:                                       7=SNR cutoff (0=>5)
AIPS 1:                                       8=max. ant. # (no AN)
AIPS 1:                                       9 > 0 => do exhaustive
AIPS 1:                                                baseline search
AIPS 1: DPARM         3        *rest 0     Delay-rate parameters
AIPS 1:                                       1=no. bl combo. (def=3)
AIPS 1:                                       2=delay win (nsec), if <0
AIPS 1:                                         no delay search done
AIPS 1:                                       3=rate win (mHz)
AIPS 1:                                       4=int. time (sec)
AIPS 1: ** press RETURN for more, enter Q or next line to quit print **
#
AIPS 1:                                        0 => min. found in data
AIPS 1:                                       5 >0 => don't do ls. soln
AIPS 1:                                       6 >0 => don't avg. in freq
AIPS 1:                                       7 >0 => don't rereference
AIPS 1:                                         phase
AIPS 1:                                       8 > 0 => activate zero'ing
AIPS 1:                                                 options
AIPS 1: SNVER         0                    Output SN table, 0=>new table
AIPS 1: ANTWT      *all 0                  Ant. weights (0=>1.0)
AIPS 1: BADDISK    *all 0                  Disk no. not to use for
AIPS 1:                                       scratch files.
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