[daip] request for support
Eric Greisen
egreisen at nrao.edu
Fri Jul 6 15:39:00 EDT 2007
ereynoso at iafe.uba.ar writes:
> I have a problem with an archival file of VLA data from 1996 that I am now
> trying to deal with.
> I was searching for HI data towards Kepler's supernova remnant (that I
> positively knew was observed on September 1996); the result of the search
> was a set of observations in the L band and in the D configuration under
> the project name TESTS, ranging from 96-Sep-14 00:42:40 to 02:37:39, but
> when I load the data into aips with FILLM and list the scans, find only
> data from 01:16:50 onwards and at 45 GHz. I see nothing at 21 cm or at the
> position of Kepler's SNR (but at a nearby source: 'M17-UC1'). I tried this
> search several times constraining more and more the parameters, selecting
> coordinates instead of source name, etc, and the result is always the same
> file.
>
> Could you give me a hint on what is going on? I am afraid that the
> relevant data I am interested in (that is, HI towards Kepler's SNR) were
> observed between 00:42:40 and 01:16:50, and for some reason FILLM is not
> reading them or LISTR is not listing them.
>
Yes I can give you a hint. I downloaded this time range too and ran
PRTTP on the file with PRTLEV 2. It told me that there are 3 segments
of data. The first at L band is at subarray 2. So set CPARM(6) to 2
in FILLM and you will get a bunch of HI kepler data.
Eric Greisen
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