[daip] [!12120]: AIPS - VLBAEOPS Destroys my Fringes

[David Roberts]

              Status: Open (was: Closed)

VLBAEOPS Destroys my Fringes
----------------------------

           Ticket ID: 12120
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/12120
                Name: David Roberts
       Email address: roberts at brandeis.edu
             Creator: User
          Department: AIPS Data Reduction
       Staff (Owner): Bryan Butler
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template group: Default
             Created: 04 June 2018 02:00 PM
             Updated: 19 July 2018 09:15 PM
           Reply due: 23 July 2018 09:15 PM (4d 0h 0m)
      Resolution due: 14 April 2021 12:00 AM (999d 2h 45m)

Hi Amy-

I hope you’re and your family are doing well. 

Thanks for looking into this. As I have been able to make the corrections by downloading the latest USNO file and applying CLCOR I’m set. 

However, I have a separate problem. Both in the raw data and in amplitude calibrated data the RR and LL amplitudes on most baselines differ systematically and sometimes significantly. I have not looked at fringe fit data yet...(the source certainly has no significant circular polarization).

Is this a common problem with the VLBA? Is there a simple way to “fix” this? 

Thanks,

Dave

Sent from my iPhone

> On Jul 2, 2018, at 4:47 PM, Amy Mioduszewski  wrote:
> 
> Hi Dave,
> 
> I looked at the VLBAEOPS scripts and it should be doing things correctly.  I have also run VLBAEOPS not that long ago on my data and it worked fine.  What version of AIPS are you running? 
> Amy Mioduszewski
> VLA Scheduling Manager
> NRAO 
> 
> Ticket Details
> Ticket ID: 12120
> Department: AIPS Data Reduction
> Type: Issue
> Status: Closed
> Priority: Default
> 
> Helpdesk: https://help.nrao.edu/index.php?



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