[daip] [!11812]: AIPS - I don't get what UVCRS is doing - its finding some crossings but not others

[Michael Bietenholz]

I don't get what UVCRS is doing - its finding some crossings but not others
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           Ticket ID: 11812
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/11812
                Name: Michael Bietenholz
       Email address: mbieten at yorku.ca
             Creator: User
          Department: AIPS Data Reduction
       Staff (Owner): Eric Greisen
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template group: Default
             Created: 21 March 2018 09:53 PM
             Updated: 23 March 2018 07:42 AM
           Reply due: 27 March 2018 07:43 AM (4d 0h 0m)
      Resolution due: 15 December 2020 12:00 AM (997d 16h 17m)

Hi Eric:

  I did look at the code briefly, but I couldn't figure out what it was
doing either.  I think maybe it does an analytical solution for the
crossing of ellipses and then looks for visibility data near there
those points or something.  I think I would have just gridded the
uv-plane and looked for ones that fall into the same cell

  Anyway, I was just trying it because I'd run out of other ideas,
and its probably not going to solve the problem I'm after, so
its not a high priority.

                   cheers,  michael



On Thu, 22 Mar 2018, Eric Greisen wrote:

> I don't get it either - the criteria are a great deal more complicated than
> one would think.
> 
> I do not know this task at all - I will look more tomorrow or sometime
> soon.  It is
> at $APGNOT (APL/PGM/NOTST)
> 
> Eric Greisen
> 
> 
> Ticket Details
> 
> 

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