[daip] [!4910]: aips - DBCON

[Lynn D Matthews]

Lynn D Matthews updated #4910
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DBCON
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           Ticket ID: 4910
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/4910
           Full Name: Lynn D Matthews
               Email: lmatthew at haystack.mit.edu
             Creator: User
          Department: AIPS Data Processing
       Staff (Owner): Eric Greisen
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template Group: Default
             Created: 12 May 2014 03:08 PM
             Updated: 27 May 2014 07:25 PM
      Resolution Due: 22 May 2014 03:17 PM 



The frequency in the headers in two spectral line data sets taken on different days will in general always be slightly different, and I've never had DBCON complain about this before. The "MULTI-FREQUENCY DATABASES INCOMPATIBLE" error was new and only happened for the FQCENTER=0 case.

My understanding had been that DOPOS=-1 tells the program to ignore any frequency differences no matter how egregious. I then thought DOPOS(2)=1 was telling it to pay attention to any differences (as long as they are not >0.1%) and deal with them (e.g., using different scaling factors). But in reality are the two cases handled identically aside from the sanity check?

Lynn


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