[daip] [!12908]: AIPS - Fring passing failed solutions as good

[Eric Greisen]

Eric Greisen updated #12908
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Fring passing failed solutions as good
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           Ticket ID: 12908
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/12908
                Name: Jeffrey Hodgson
       Email address: jhodgson at mpifr-bonn.mpg.de
             Creator: User
          Department: AIPS Data Reduction
       Staff (Owner): -- Unassigned --
                Type: Issue
              Status: Response Overdue
            Priority: Default
                 SLA: NRAO E2E
      Template group: Default
             Created: 02 November 2018 03:08 AM
             Updated: 19 November 2018 04:56 PM
           Reply due: 21 November 2018 07:00 AM (1d 14h 3m)
      Resolution due: 15 August 2021 12:00 AM (999d 7h 3m)

I don't have any good suggestions.  It is curious thatit reports exactly 1/3 of the possible solutions as havingworked.  Is it possible that it is failing on 2/3 of theantennas and working at some S/N ratio on the other1/3?  Have you tried longer integration times?   Have youtried not fitting for rate (DPARM(9) 1)?I am told that some VLB data sets are so bad that CALIBwith L1R and phase only is all that can be done.With large failure rates like this there is no point in continuingunless you can get that fixed.  I would be interested in whatthe SN table looks like after this FRING.  CLCAL will by defaultpass CL entries for failed solutions which is what I guessyou mean by passed.Eric Greisen


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