[daip] [!13060]: AIPS - AIPS FRING source model inclusion

Ilse van Bemmel nraohelp at nrao.edu
Fri Nov 30 03:21:15 EST 2018


AIPS FRING source model inclusion
---------------------------------

           Ticket ID: 13060
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/13060
                Name: Ilse van Bemmel
       Email address: bemmel at astron.nl
             Creator: User
          Department: AIPS Data Reduction
       Staff (Owner): -- Unassigned --
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template group: Default
             Created: 27 November 2018 02:02 PM
             Updated: 30 November 2018 08:21 AM
           Reply due: 04 December 2018 08:21 AM (4d 0h 0m)
      Resolution due: 23 August 2021 12:00 AM (996d 15h 39m)

Hi Eric,

Thanks for clarifying! I had not yet fully considered the effect (or lack of it) of the source model on the phases, this indeed needs more consideration. You can close this ticket.

Cheers,
Ilse


> On 27 Nov 2018, at 22:10, Eric Greisen  wrote:
> 
> So long as SMODEL(1) is not zero, FRING will use SMODEL
> even if the model image adverbs also have values.  But 
> remember, FRING only cares about phase.  If your model is
> symmetric about the origin, then the model changes amplitudes
> but not phases.  If your model is offset from the origin, then it
> will have an effect on phase.
> 
> Eric Greisen 
> 
> 
> Ticket Details
> Ticket ID: 13060
> Department: AIPS Data Reduction
> Type: Issue
> Status: Open
> Priority: Default
> 
> Helpdesk: https://help.nrao.edu/index.php? 




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