[daip] FITLD disturbing error message.

R. Craig Walker cwalker at nrao.edu
Wed Apr 24 23:10:32 EDT 2013


What does IMPARS: BAD NUMBER ON ITYPE mean when given by FITLD.

I'm reading a FITS file written yesterday on a 31DEC12 AIPS on my Mac
laptop.  I'm reading on my recently updated 31DEC13 AIPS on the Mac
desktop where I'm doing most of my work.  The message shows up for most or
all of the roughly 20 images I loaded.

I have not yet spotted any problem with the files that are read.




datain='fits:BW090N3C274.DIFF1.11'; go fitld
FITLD1: Task FITLD  (release of 31DEC13) begins
AIPS 1: Resumes
>FITLD1: Create FITLD       .TEMP  .   1 (MA)  on disk  6  cno   50
FITLD1: IMPARS: BAD NUMBER ON ITYPE
FITLD1: RenamE BW090N3C274 .DIFF1 .   1 (MA)  on disk 6 cno   50
FITLD1: Image=3C274     (MA)         Filename=BW090N3C274 .DIFF1 .   1
FITLD1: Telescope=VLBA               Receiver=
FITLD1: Observer=BW090               User #=  500
FITLD1: Observ. date=05-APR-2008     Map date=31-DEC-2008
FITLD1: Minimum=-5.43194357E-03      Maximum= 4.94423568E-01 JY/BEAM
FITLD1: ----------------------------------------------------------------
FITLD1: Type    Pixels   Coord value     at Pixel     Coord incr   Rotat
FITLD1: RA---SIN   256    12 30 49.423     253.00      -0.000035    0.00
FITLD1: DEC--SIN   166    12 23 28.044      54.00       0.000035    0.00
FITLD1: FREQ         1   4.3135428E+10       1.00  2.8000000E+07    0.00
FITLD1: STOKES       1   1.0000000E+00       1.00  1.0000000E+00    0.00
FITLD1: ----------------------------------------------------------------
FITLD1: Coordinate equinox 2000.00
FITLD1: Map type=POINTS              Number of iterations=    1360
FITLD1: Conv size= 0.00043 X 0.00021   Position angle= -16.00
FITLD1: Observed RA   12 30 49.423    DEC  12 23 28.04
FITLD1: Phase shifted in X     -0.00717  in Y      0.00000
FITLD1: Rest freq      0.000         Vel type: OPTICAL wrt YOU
FITLD1: Alt ref. value  0.00000E+00  wrt pixel    0.00
FITLD1: Maximum version number of extension files of type HI is   1
FITLD1: Maximum version number of extension files of type MF is   1
FITLD1: Appears to have ended successfully
FITLD1: localhos 31DEC13 TST: Cpu=      0.1  Real=      1  IO=         2


Inputs (different file from above, but same result):


inp fitld
AIPS 1: FITLD:  Task to store an image or UV data from a FITS tape
AIPS 1: Adverbs     Values                 Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: INTAPE        1                    Input tape drive # (0 => 1)
AIPS 1: NFILES        1                    # of files to advance on tape
AIPS 1: DATAIN     'FITS:BW090G3C274.DIFF1 Disk file name
AIPS 1:            .11'
AIPS 1: OUTNAME    ' '                     File name (name)
AIPS 1: OUTCLASS   ' '                     File name (class)
AIPS 1: OUTSEQ        0                    File name (seq. #)
AIPS 1:                                       0 => highest unique number
AIPS 1:                                         => matching (on VLBA)
AIPS 1:                                      -1 => FITS tape value
AIPS 1: OUTDISK       6                    Disk drive # (0 => any)
AIPS 1: OPTYPE     ' '                     Type of data to load,
AIPS 1:                                    '  ' => all types
AIPS 1:                                    'UV' => UV data
AIPS 1:                                    'IM' => images
AIPS 1: NCOUNT        1                    Number of files to load.
AIPS 1: DOTABLE       1                    True (1.0) means load tables
AIPS 1:                                    for images.
AIPS 1: DOUVCOMP     -1                    >0 => compressed data (FITS)
AIPS 1: DOCONCAT     -1                    >0 -> if VLBA correlator data
AIPS 1:                                    append data to existing
AIPS 1:                                    files, or if no appropriate
AIPS 1:                                    files exist create a new file
AIPS 1:                                    and append all data to that
AIPS 1:                                    file.
AIPS 1: DOKEEP        0                    > 0 -> keep fully flagged
AIPS 1:                                    data records
AIPS 1: NPIECE        0                    Maximum uv table piece to
AIPS 1:                                    load (ignored for tape unless
AIPS 1:                                    NCOUNT = 1)
AIPS 1: ERROR        -1                    >= 2 -> do not use AIPS
AIPS 1:                                    history in the FITS file
AIPS 1:                                    *****************************
AIPS 1:                                    Following adverbs are useful
AIPS 1:                                    only when reading VLBA IDI
AIPS 1:                                    distribution tapes.
AIPS 1:                                    *****************************
AIPS 1: CLINT         0                    CL entry interval (min)
AIPS 1:                                    0 => 1 minute.
AIPS 1: SOURCES    *all ' '                Source list to accept.
AIPS 1: QUAL         -1                    Source qualifier -1=>all
AIPS 1: TIMERANG   *all 0                  Timerange selected
AIPS 1: BCHAN         1                    Lowest spectral channel
AIPS 1:                                    number to select in each IF.
AIPS 1: ** press RETURN for more, enter Q or next line to quit print **
#
AIPS 1:                                    0=>1
AIPS 1: ECHAN         0                    Highest spectral channel
AIPS 1:                                    number to select in each IF.
AIPS 1:                                    0=>highest
AIPS 1: BIF           0                    Lowest IF number 0=>1
AIPS 1: EIF           0                    Highest IF number 0=>all
AIPS 1: DIGICOR       1                    Controls the application of
AIPS 1:                                    the VLBA and DIFX correlator
AIPS 1:                                    digital correction.
AIPS 1:                                    0 or 1 => perform corrections
AIPS 1:                                    2 => perform cross-power
AIPS 1:                                      corrections, do total-power
AIPS 1:                                      only if zero padding used.
AIPS 1:                                    -1 => do NOT perform
AIPS 1:                                      corrections.
AIPS 1:                                    SEE HELP for more details
AIPS 1: SELBAND      -1                    Bandwidth to select (kHz)
AIPS 1: SELFREQ      -1                    Frequency to select (MHz).
AIPS 1:                                    See HELP.
AIPS 1: FQTOL        -1                    Frequency tolerance assigned
AIPS 1:                                    to SELFREQ, FITLD will select
AIPS 1:                                    data with freq. of SELFREQ
AIPS 1:                                    +/- FQTOL.
AIPS 1:                                    The unit of FQTOL is kHz.
AIPS 1:                                    <=0 => 10 kHz
AIPS 1: WTTHRESH      0                    Flagging threshold based on
AIPS 1:                                    weights. See HELP.
AIPS 1:                                    0 => no flagging
AIPS 1:                                    1 => will flag ALL data
AIPS 1: OPCODE     'GAUS'                  Specify if wish to keep VT
AIPS 1:                                    (VLBA Tape Statistics) table
AIPS 1:                                    and other tables.  See HELP.
AIPS 1:                                    '  ' => do not save tables
AIPS 1: ANTNAME    *all ' '                List antenna station names in
AIPS 1:                                    desired order (IDI data only)

Switching to OPCODE=' ' did nothing.

Cheers,

Craig



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    R. Craig Walker            Array Operations Center
    cwalker at nrao.edu           National Radio Astronomy Observatory
    Phone  575 835 7247        P. O. Box O
    Fax    575 835 7027        Socorro NM 87801   USA
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