[daip] [!9732]: AIPS - R-L delay calibration: rldly & crsfring

[Yuri Kovalev]

R-L delay calibration: rldly & crsfring
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           Ticket ID: 9732
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/9732
           Full Name: Yuri Kovalev
               Email: yyk at asc.rssi.ru
             Creator: User
          Department: AIPS Data Reduction
       Staff (Owner): Eric Greisen
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template Group: Default
             Created: 29 January 2017 03:17 PM
             Updated: 30 January 2017 04:58 PM
                 Due: 01 February 2017 04:58 PM (2d 0h 0m)
      Resolution Due: 07 February 2017 04:58 PM (8d 0h 0m)



Dear Eric,

Following your recommendation some years ago I switched from crsfring to rldly 
and it was fine. At some later point (a year or more ago) rldly started to give 
wrong results, similar to this 
ftp://jet.asc.rssi.ru/outgoing/yyk/2cm/BL229AD_RLDLY/POSSM_CROSS_RLDLY.PS
Matt Lister had similar problems. I wonder if he can add anything to this?

If you are interested to see the whole procedure, this file describes it:
ftp://jet.asc.rssi.ru/outgoing/yyk/2cm/BL229AD_processing/BL229AD_Mk5C.SCRIPT

Cheers,
Yuri

On Mon, 30 Jan 2017, NRAO Helpdesk wrote:

> I am surprised the CRSFRING still works - if it does.  RLDLY was intended to replace what it did in one nice neat package rather than through a horrible kludge of a script which included a task written just to do a part of that job.  On the other hand, if RLDLY was broken in 2015, why did you not tell us in 2015?  I have consulted with an experienced polarization user (down the hall) and he tells me RLDLY works just fine to this day.  I will try to see what is wrong in your case but it is clearly not a general situation.
>
> Eric Greisen
>
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>
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> Ticket Details
> ---------------------------------
> Ticket ID: 9732
> Department: AIPS Data Reduction
>
> Support Center: https://help.nrao.edu/index.php?/Tickets/Ticket/View/9732
>


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