[From nobody Thu Jul 24 13:43:30 2014
Message-ID: <42F120B2.2040608@nrao.edu>
Date: Wed, 03 Aug 2005 15:53:22 -0400
From: Julia Sandell <jsandell@nrao.edu>
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To: daips@nrao.edu, John Hibbard <jhibbard@nrao.edu>
Subject: AIPS Querie
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Hello,
     I am a summer student working John Hibbard, and I have been using 
AIPS this summer to reduce VLA data. I was given a set of files John 
worked on for his thesis and I am trying to DBCON the C and D array 
uvsub files. The D-array uvsub data is the result of 5 different 
observations DBCON together. I am unable to run imagr on this data, when 
I attempt to, I am given the following error messages:
IMAGR1: Task IMAGR  (release of 31DEC05) begins
IMAGR1: ****** WARNING: NO NX TABLE IN MULTI-SOURCE FILE
IMAGR1: ******    SELECTION AND FLAGGING BY SOURCE DISABLED
IMAGR1: ******    YOU SHOULD RUN INDXR
IMAGR1: **  ONE and ONLY ONE source must be specified                   
                IMAGR1: **  Use SPLIT & DBCON to image multiple sources
IMAGR1: Purports to die of UNNATURAL causes

Both John and myself, on separate occasions tried to run INDXR and SPLIT 
on the file, when running SPLIT we get the message:
SPLIT1: Task SPLIT  (release of 31DEC05) begins
 SPLIT1: You are using a non-standard program
SPLIT1: Looping over subarrays 1 through  5
SPLIT1: ****** WARNING: NO NX TABLE IN MULTI-SOURCE FILE
SPLIT1: ******    SELECTION AND FLAGGING BY SOURCE DISABLED
SPLIT1: ******    YOU SHOULD RUN INDXR

we then tried to run indxr and get this message:
 INDXR1: Task INDXR  (release of 31DEC05) begins
 INDXR1: INPUT FILE MUST BE IN TIME-ORDER (USE UVSRT FIRST)
 INDXR1: Purports to die of UNNATURAL causes

when trying to run UVSRT it does not give an error message, but then 
trying to run INDXR again we get the same INDXR error message we got 
before. In the end we are unable to make a map of the D-array uvsub 
file. We do not have any of these problem with the C-array data, which 
we believe was created in the same year as the D-array data.

I was hoping you would be able to help me understand how to remedy this 
problem, any help would be wonderful. Thank you,

Best Regards,
Julia Sandell




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