[daip] AIPS Error - missing SU table.

[Robert Dunn]

Dear AIPS

I have had a problem with the reduction of some data in AIPS using the 
VLARUN pipeline - I outline the history and what attempts we have made 
below.

I am working at the Institute of Astronomy in Cambridge, UK, and we 
recently set up an AIPS installation with the help of Greg Taylor during 
his visit here in September.  I am the only person using it on this site 
at the moment, and have only had a few months experience with it.  I have 
had no problems until the end of last week.

I added a new (the first new) user ID as  the number of files was getting 
large and downloaded a number of sets of archive data to reduce.  However 
only one of about 5 worked - the others came up with the following error 
message:

SPLIT1: Appears to have ended successfully
SPLIT1: xpc17        31DEC04 TST: Cpu=       6.7  Real=      11
AIPS 1: Resumes
AIPS 1: Got(1)   disk= 1  user=1002   type=UV   NGC4636.L BAND.1
AIPS 1: Got(1)   disk= 1  user=1002   type=UV   NGC4636.L BAND.1
AIPS 1: TABINI: REQUESTED SU FILE   0 DOES NOT EXIST
AIPS 1: TABINI ERROR   2 OPEN FOR READ SU, TABLE  VER=  0
AIPS 1: DISK PROBLEM   CODES:       0      0
>

I asked Greg to check, just in case there was something wrong with the 
data set and I just happened to have picked ~4 which didn't work, but he, 
using exactly the same inputs on VLARUN as I had, had no problem

I tried changing the inputs to the pipeline but there was no luck.  Greg 
suggested trying another new user ID as well as the original which also 
produced the error message.  He also suggested that there may be a problem 
with the permissions.  I had a root around in the /DATA/ directory and 
changed all the permissions to be the same (that of the majority of 
files).

An older dataset that I had managed to reduce before still runs fine with 
the pipeline and produces a set of image files - in the old user ID as 
well as the new one.

Can you suggest a reason for why my installation seems to loose SU tables 
for some new datasets, whereas Greg's doesn't?

Thank you for your help - I look forward to hearing from you in the 
future.

Robert Dunn

Institute of Astronomy
Cambridge
CB2 3HU
UK