[daip] FILLM not reading data

[Modhurita Mitra]

On running PRTTP on a VLAExp file, I get messages like:

 Subarray = 2 Channel code =  24582 Correlator mode = 2AD
 Timerange = 19990307 at    3 48  0.0 to    4 19  0.0
    20 VLA archive records, approximately          0 vis.
PRTTP3: This file: read    37.172 Megabytes in    1470 logical records
PRTTP3: Read at least     37.172 Megabytes in    1470 logical records

It seems to have several MB of data but no visibilities. What does that
mean?

Thanks,
Modhurita

On Fri, Apr 11, 2008 at 2:03 PM, Eric Greisen <egreisen at nrao.edu> wrote:

> Modhurita Mitra wrote:
>
> > Hi,
> >
> > I am trying to load some files with FILLM; but it is not reading any
> > visibilities. It gives a message saying:
> >
> > FILLM3: Read         0 visibilities from  1 files
> >
> > The AIPS files are created, but they do not contain any visibilities.
> > What could be the reason FILLM is rejecting all data?
> >
>
> With this amount if information I can only make wild guesses.  The most
> likely is that the requested observation code, sources, bands, etc did not
> occur in the file.  I have seen this, for example, when the requested bands
> only contained special data (pointing, delay setting) with no regular data.
>  Be sure of course that the correct input files were opened and examined.
>  Use PRTTP to look at the FILLM input file. It may be able to provide useful
> information.
>
> Eric Greisen
>
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