[daip] help - IMAGR1: IMACPY: NO DATA SELECTED

Rita Castro ritamcastro at gmail.com
Fri Dec 1 10:13:16 EST 2006


Hello,
My name is Rita and I am currently mapping some sources from the
VLA-Archive.
I used to run AIPS on Jodrell Bank's machines and now I've installed AIPS on
my laptop. Instalation was smooth.
I've used an amplitude and phase calibration on my data retrieved from the
Archive and now, when I use IMAGR to map the source I get these errors:

LAPPY > IMAGR1: Beginning channel    1 through    1 with  2 IFs
LAPPY > IMAGR1: IMACPY: NO DATA SELECTED
LAPPY > IMAGR1: IMACPY: ERROR COPYING Input UVdata
LAPPY > IMAGR1: TO UVdata work object
LAPPY > IMAGR1: Blanking channel    1 image plane
LAPPY > IMAGR1: OBRGET: KEYWORD CNO NOT FOUND
LAPPY > IMAGR1: KEYWORD =CNO
LAPPY > IMAGR1: OBRGET: PROBLEM WITH OBJECT: CLEAN field number 0001
LAPPY > IMAGR1: IMABLK: ERROR BLANKING CLEAN field number 0001
LAPPY > IMAGR1: NO DATA FOUND
LAPPY > IMAGR1: Deleting UV work file:
LAPPY > IMAGR1: Destroyed UV image file: catno=      4 disk= 1
LAPPY > IMAGR1: Purports to die of UNNATURAL causes
LAPPY > IMAGR1: lappy        31DEC06 TST: Cpu=       0.0  Real=       0

I've run the same process on Jodrell's machines and was able to map the
source, so there shouldn't be any data problems...

What can I do to solve this? I've looked on google and found no answer...
Here's my IMAGR inputs:

AIPS 1: IMAGR: Wide field imaging/Clean task
AIPS 1: Adverbs     Values                 Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: INNAME     '0010+406'              Input UV data (name)
AIPS 1: INCLASS    'SPLIT'                 Input UV data (class)
AIPS 1: INSEQ         1                    Input UV data (seq. #)
AIPS 1: INDISK        1                    Input UV data disk drive #
AIPS 1: SOURCES    *all ' '                Source name
AIPS 1: QUAL         -1                    Calibrator qualifier -1=>all
AIPS 1: CALCODE    ' '                     Calibrator code '    '=>all
AIPS 1: TIMERANG   *all 0                  Time range to use
AIPS 1: SELBAND      -1                    Bandwidth to select (kHz)
AIPS 1: SELFREQ      -1                    Frequency to select (MHz)
AIPS 1: FREQID       -1                    Freq. ID to select.
AIPS 1: SUBARRAY      0                    Sub-array, 0=>all
AIPS 1: ANTENNAS   *all 0                  Antennas to plot
AIPS 1: BASELINE   *all 0                  Baselines with ANTENNAS
AIPS 1: DOCALIB      -1                    > 0 calibrate data & weights
AIPS 1:                                    > 99 do NOT calibrate weights
AIPS 1: GAINUSE       0                    CL (or SN) table to apply
AIPS 1: DOPOL        -1                    If >0.5 correct polarization.
AIPS 1: BLVER        -1                    BL table to apply.
AIPS 1: FLAGVER       0                    Flag table version
AIPS 1: DOBAND       -1                    If >0.5 apply bandpass cal.
AIPS 1:                                    Method used depends on value
AIPS 1:                                    of DOBAND (see HELP file).
AIPS 1: BPVER        -1                    Bandpass table version
AIPS 1: SMOOTH     *all 0                  Smoothing function. See
AIPS 1:                                    HELP SMOOTH for details.
AIPS 1: STOKES     ' '                     Stokes parameters (see HELP)
AIPS 1: BCHAN         1                    Low freq. channel 0 for cont.
AIPS 1: ECHAN         0                    Highest freq channel
AIPS 1: CHANNEL       0                    Restart channel number
AIPS 1: NCHAV         1                    Number of chan. to average.
AIPS 1: CHINC         1                    Channel incr. between maps.
AIPS 1: BIF           0                    First IF in average.
AIPS 1: EIF           0                    Last IF in average.
AIPS 1: OUTNAME    ' '                     Output image name (name)
AIPS 1: OUTDISK       1                    Output image disk drive #
AIPS 1: OUTSEQ        0                    Output seq. no.
AIPS 1: OUTVER        0                    CC ver. no (Continuum only)
AIPS 1:                                    *** SET OUTVER ON RESTARTS
AIPS 1: IN2NAME    ' '                     UV work file name
AIPS 1: IN2CLASS   ' '                     UV work file class
AIPS 1: IN2SEQ        0                    UV work file seq
AIPS 1:                                    *** SET TO KEEP WORK FILE
AIPS 1: IN2DISK       0                    UV work file disk
AIPS 1: CELLSIZE      0.3         0.3      (X,Y) size of grid in asec
AIPS 1: IMSIZE      512         512        Minimum image size
AIPS 1: NFIELD        1                    Number of fields (max 4096)
AIPS 1: DO3DIMAG     -1                    > 0 => use different tangent
AIPS 1:                                    points for each field
AIPS 1: FLDSIZE    *all 0                  Clean size of each field.
AIPS 1: RASHIFT    *all 0                  RA shift per field (asec)
AIPS 1: DECSHIFT   *all 0                  DEC shift per field (asec)
AIPS 1: UVTAPER       0           0        (U,V) Gaussian taper
AIPS 1:                                      units are kilo-lambda
AIPS 1: UVRANGE       0         180        Min & max baseline (klambda)
AIPS 1: GUARD         0           0        x,y guard band fractional
AIPS 1:                                    radius
AIPS 1: ROTATE        0                    Rotate image CCW from N by
AIPS 1:                                    ROTATE degrees
AIPS 1: ZEROSP     *all 0                  0-spacing fluxes and weights
AIPS 1:                                    SEE HELP!!
AIPS 1: UVWTFN     ' '                     UV dist. weight function
AIPS 1: UVSIZE        0           0        Array size for doing uniform
AIPS 1:                                    weights.  0 -> actual field
AIPS 1:                                    size.
AIPS 1: ROBUST        0                    Robustness power: -5 -> pure
AIPS 1:                                    uniform weights, 5 => natural
AIPS 1: UVBOX         0                    Additional rows and columns
AIPS 1:                                    used in weighting.
AIPS 1: UVBXFN        1                    Box function type when UVBOX
AIPS 1:                                    > 0.  0 -> 1 round pill box.
AIPS 1: XTYPE         5                    Conv. function type in x
AIPS 1:                                      default spheroidal
AIPS 1: YTYPE         5                    Conv. function type in y
AIPS 1:                                      default spheroidal
AIPS 1: XPARM      *all 0                  Conv. function parms for x
AIPS 1: YPARM      *all 0                  Conv. function parms for y
AIPS 1: NITER       500                    Maximum # of Clean components
AIPS 1: BCOMP      *all 0                  Begin at BCOMP component
AIPS 1:                                    Specify for each field.
AIPS 1: ALLOKAY       0                    For restart: > 0 => beams
AIPS 1:                                    okay, > 1 => work file too
AIPS 1: NBOXES        0                    Number of boxes for Clean
AIPS 1:                                    NB: field 1 only.
AIPS 1: CLBOX      *all 0                  Four coordinates for each box
AIPS 1: BOXFILE    *all ' '                Input file of field params
AIPS 1:                                    and Clean boxes; ' ' => use
AIPS 1:                                    FLDSIZE, RASHIFT, DECSHIFT,
AIPS 1:                                    NBOXES, CLBOX only.
AIPS 1: OBOXFILE   *all ' '                Output file for final Clean
AIPS 1:                                    boxes
AIPS 1: GAIN          0.1                  Clean loop gain
AIPS 1: FLUX          0                    Minimum Clean component (Jy)
AIPS 1: MINPATCH     51                    Min. BEAM half-width in AP.
AIPS 1: BMAJ          0                    FWHM(asec) major axis Clean
AIPS 1:                                    restoring beam.
AIPS 1: BMIN          0                    FWHM(asec) minor axis Clean
AIPS 1:                                    restoring beam.
AIPS 1: BPA           0                    Clean beam position angle
AIPS 1: OVERLAP       0                    1 => restore components to
AIPS 1:                                    overlapped fields, >=2=>
AIPS 1:                                    expect overlaps in Cleaning
AIPS 1: PHAT          0                    Prussian hat height.
AIPS 1: FACTOR        0                    Speedup factor see HELP
AIPS 1: CMETHOD    ' '                     Modeling method:
AIPS 1:                                    'DFT','GRID','    '
AIPS 1: IMAGRPRM   *all 0                  Task enrichment parameters
AIPS 1:                                    (1) Antenna diameter (m)
AIPS 1:                                    (2) Source Spectral index
AIPS 1:                                    (3) Frequency scaling factor
AIPS 1:                                    (4) > 0 -> SDI Clean factor
AIPS 1:                                    (5) >0 => scale residuals
AIPS 1:                                    (6) Half-width in x of box
AIPS 1:                                    (7) Half-width in y of box
AIPS 1:                                    (8) Filter components whose
AIPS 1:                                    neighborhood is weaker than
AIPS 1:                                    IMAGRPRM(8) Jy.  0 -> don't
AIPS 1:                                    (9) Radius in pixels for the
AIPS 1:                                    IMAGRPRM(8) test.
AIPS 1:                                    (10) multiplier of image size
AIPS 1:                                    to get beam size: 0 => 2;
AIPS 1:                                    2, 1, 0.5 0.25 supported
AIPS 1:                                    (11-16) Multi-resolution
AIPS 1:                                    added controls
AIPS 1:                                    (17) spectral index radius
AIPS 1:                                         0 -> no correction
AIPS 1:                                    (19) Dynamic range limit
AIPS 1:                                    (20) Retry factor (see help)
AIPS 1: NGAUSS        0                    Number of resolutions to use
AIPS 1: WGAUSS     *all 0                  Resolutions in arc sec >= 0
AIPS 1: FGAUSS     *all 0                  Minimum flux for each resol.
AIPS 1: MAXPIXEL      0                    Maximum pixels searched in
AIPS 1:                                    each major cycle.
AIPS 1: IN3NAME    ' '                     Spectral index image name
AIPS 1: IN3CLASS   ' '                     Spectral index image class
AIPS 1: IN3SEQ        0                    Spectral index image sequence
AIPS 1:                                    number
AIPS 1: IN3DISK       0                    Spectral index image disk
AIPS 1: IN4NAME    ' '                     Spectral curvature name
AIPS 1: IN4CLASS   ' '                     Spectral curvature class
AIPS 1: IN4SEQ        0                    Spectral curvature sequence
AIPS 1:                                    number
AIPS 1: IN4DISK       0                    Spectral curvature disk
AIPS 1: FQTOL        -1                    Frequency tolerance in kHz
AIPS 1:                                    (primary beam & spec index)
AIPS 1: DOTV         -1                    Display residuals on TV ?
AIPS 1:                                    Start with field = DOTV
AIPS 1: GRCHAN        0                    Graphics channel of boundary
AIPS 1: BADDISK    *all 0                  Disks to avoid for scratch.

Thanks in advance...
Rita Castro
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