[daip] I/O Error

[bmoorthy at nmsu.edu]

Hello,

I got the following error message while trying to read data from tape.

FITLD1: Task FITLD  (release of 31DEC01) begins
FITLD1: Reading tape drive number   1
FITLD1: Reading tape at current position
AIPS 1: Resumes
>FITLD1: Found MULTI    observed on 02-JUN-1999
FITLD1: UV data will be written in compressed format
FITLD1: CATDIR: I/O ERROR READING CATALOG FILES: 1255
FITLD1: UVCREA: CATDIR IO ERROR=      3
FITLD1: ERROR      4 RETURNED FROM UVFHDR
FITLD1: Purports to die of UNNATURAL causes
FITLD1: maritimus    31DEC01 TST: Cpu=       0.0  Real=      13

If it helps the parameters of FITLD are:

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        0                    # of files to advance on tape

AIPS 1: INFILE     *all ' '                Disk file name (FITS only)
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       2                    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 or uv table,
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:                                    *****************************

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:                                    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 correlator's digital

AIPS 1:                                    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: DELCORR       1                    If >= 0 enable the second
AIPS 1:                                    order correlator delay
AIPS 1:                                    corrections to be applied
AIPS 1:                                    during processing.
AIPS 1:                                    SEE HELP for more details.
AIPS 1: SELBAND       0                    Bandwidth to select (kHz)
AIPS 1: SELFREQ       0                    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     '    '                  Specify if wish to keep VT
AIPS 1:                                    (VLBA Tape Statistics) table.

AIPS 1:                                    '  ' => do not copy VT table
AIPS 1:                                    'VT' => keep VT table
AIPS 1: NPIECE        0                    Maximum uv table piece to
AIPS 1:                                    load (ignored for tape unless

AIPS 1:                                    NCOUNT = 1)

Thanks for your help,
Bhasker