[daip] bl137 AIPS problem

[Amy Mioduszewski]

Hi Matt,

Eric has been traveling.  You should send e-mail to daip at nrao.edu in 
order to contact the group.

Could you send me the exact PCCOR inputs you are using for one of the 
experiment.

Thanks,

Amy

-------- Original Message --------
Subject: bl137 AIPS problem
Date: Tue, 11 Jul 2006 16:04:23 -0600 (MDT)
From: VLBI Observers (Aspen only) <vlbiobs at nrao.edu>
To: amioduszewski at nrao.edu


Hi Amy,

Matt Lister is having an AIPS problem with his archived
bl137 data, and has had no response from Eric about it
(i think he was traveling). Might you have a moment to
look into it?

Thanks,

Lisa


---------- Forwarded message ----------
Date: Thu, 06 Jul 2006 10:52:13 -0400
From: Matthew L Lister <mlister at physics.purdue.edu>
To: archive at nrao.edu, vlbiobs at nrao.edu
Subject: data tape request

I recently stopped requesting DAT tapes for my BL137 experiments,
as my intention was to download them from the web. However, I've
been experiencing random AIPS problems with the downloaded files
that never occurred previously with the versions loaded from tape. I 
recently
sent
an email to Eric Greisen about this but haven't gotten a reply. In
the meantime, I would like to request that you ship me the DAT
tapes for BL137B, BL137C, BL137D, BL137E, BL137F, and all future
BL137 experiments. The shipping info is contained in the key files.

Thanks,
Matt Lister

> Hi Eric,
> 
> I've encountered some unusual behavior with PCCOR whenrun on data downloaded 
> from the archive.
> 
> I've been working on BL137B, a multifrequency VLBA run from a few months ago,
> containing scans at 8, 12 and 15 GHz. I downloaded
> three large files from the archive, (one for 8, one for 12, and one for 15 
> GHz).
> When I try to run PCCOR on them, it works for the 15 GHz, but the other two
> frequencies give:
> 
> prospe> PCCOR1: Task PCCOR  (release of 31DEC05) begins
> prospe> PCCOR1: Writing to SN table   1
> prospe> PCCOR1: All rows of the PC table are bad for the selected parameters
> prospe> PCCOR1: Purports to die of UNNATURAL causes
> 
> When I list the PC table for the 8 GHz file, column 9 gives the correct value 
> (8.1 GHz).
> 
> The strange thing is, when I reduced BL137A, which had an identical setup 
> (same frequencies), I loaded from a DAT tape, and encountered no problems.
> 
> Any idea what's going on here? Do I need to upgrade my AIPS install?
> 
> Thanks,
> Matt