[daip] Strange PRTAN data in AL592 data set

[Data Analysts]

Hi,

We recent loaded data from VLA experiment AL592 onto disk for Laurent Loinard
to FTP.  He retrieved the data, but is having trouble with the PRTAN output file
(see his Email below).  I reloaded the data into AIPS and encountered the same
problem he had.  Namely, there is no pad number listed for any antenna (they
all just say 'VLA:OUT').

The data file can be found on machine Aspen,  AIPS disk #7, AIPS catalog #5,
AIPS user # 33, called AL592.030622.Q BAND. 1.

The PRTAN file can be found at /home/aspen7/ and is called AL592.PRTAN.

Here are the FILLM inputs that we use:
...
>inp
AIPS 1: FILLM     Task to read a VLA archive tape
AIPS 1: Adverbs     Values                 Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: INTAPE        3                    Tape drive number
AIPS 1: INFILE     '                                                '
AIPS 1:                                    Non-blank: disk file name
AIPS 1: NFILES        0                    Number of files to advance
AIPS 1: BAND       '    '                  Freq. band (4,P,L,C,X,U,K,Q)
AIPS 1: QUAL         -1                    Source qualifier -1=>all
AIPS 1: CALCODE    '    '                  Calibrator code
AIPS 1: VLAOBS     'AL592 '                VLA obs. pgm. name ('AZ99')
AIPS 1: VLAMODE    '  '                    VLA obs. mode ('  '=any)
AIPS 1: REFDATE    '20030622'              Reference date. 'yyyymmdd'
AIPS 1: TIMERANG      0           2        Timerange selected
AIPS 1:              44           0           0           8
AIPS 1:              41           0
AIPS 1: BCHAN         1                    First spectral channel
AIPS 1: ECHAN         0                    Highest spectral channel
AIPS 1: OUTNAME    'AL592.030622'          Output UV file name (name)
AIPS 1: OUTSEQ        0                    Output UV file name (seq. #)
AIPS 1: OUTDISK       7                    Output UV file disk unit #.
AIPS 1: DOUVCOMP     -1                    1 (T) => compressed data
AIPS 1: DOALL         1                    1 (T) => write all data.
AIPS 1: DOCONCAT      1                    1 (T) => append data to old
AIPS 1:                                    files
AIPS 1: NCOUNT        0                    Number of files to read
AIPS 1: DOWEIGHT      1                    Use nominal sensitivity to
AIPS 1:                                    scale weights?
AIPS 1:                                    = 10, use Memo 108 weights
AIPS 1: DOACOR        1                    Load autocorrelation data?
AIPS 1: CPARM      *all 0                  User options.
AIPS 1:                                    1 => Avg. time (seconds)
AIPS 1:                                    2 => bitmap    (see help)
AIPS 1: ** press RETURN for more, enter Q or next line to quit print **
#
AIPS 1:                                         = 16 for planets & Sun
AIPS 1:                                    3 => Max. OK IF status
AIPS 1:                                         <=3 => 3
AIPS 1:                                    4 => Control dropping of
AIPS 1:                                         shadowed data
AIPS 1:                                         < 0 => no shadow check
AIPS 1:                                         0 => 25 m limit
AIPS 1:                                         > 0 => Shadow limit is
AIPS 1:                                               CPARM(4) in meters
AIPS 1:                                    5 = channel code (see HELP)
AIPS 1:                                    6 => Subarray number-see HELP
AIPS 1:                                    7 => FQ entry tolerance (kHz)
AIPS 1:                                         (see HELP)
AIPS 1:                                    8 => CL table time incr. min
AIPS 1:                                    9 => TY table time incr. min
AIPS 1:                                    10=> Calibrator avg. time
AIPS 1: DPARM      *all 0                  Selection by Frequency
AIPS 1:                                    1+2 => A Frequency (Hz)
AIPS 1:                                    3+4 => B Frequency (Hz)
AIPS 1:                                    5+6 => C Frequency (Hz)
AIPS 1:                                    7+8 => D Frequency (Hz)
AIPS 1:                                    9 => tolerance for A&C
AIPS 1:                                    10 => tolerance for B&D
AIPS 1: BPARM      *all 0                  Opacity and Gain curve
AIPS 1:                                    control (see help)
AIPS 1: IN2FILE    '                                                '
AIPS 1:                                    Antenna gains file
>
...

I am not sure if this is an AIPS problem or a data table problem, but I 
am sending it to you guys to investigate.

Regards,

Jason

> From l.loinard at astrosmo.unam.mx Tue Jul  8 09:29 MDT 2003
> Sender: l.loinard at astrosmo.unam.mx
> 
> 
> I got the data and successfully read them using fillm, si you can erase
> them from
> the scratch disk. I reduced them quickly and found that they were very good
> data.
> I only have a small problem: when I run prtan to see where each antenna
> was, it
> tells me that all the antennas were out.. This is somewhat of a problem
> since I'd need
> to know where the antennas were in order to select only the central ones
> for the flux
> calibration..
> 
> So if you would know where the antennas were, or alternatively could tell
> me
> how to fix the problem, that'd be great!
> 
> Cheers,
> Laurent
> 
>