[daip] [!14796]: AIPS - Unstable phases on the GBT

[Amy Mioduszewski]

Amy Mioduszewski updated #14796
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Unstable phases on the GBT
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           Ticket ID: 14796
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/14796
                Name: James Miller-Jones
       Email address: james.miller-jones at curtin.edu.au
             Creator: User
          Department: AIPS Data Reduction
       Staff (Owner): Amy Mioduszewski
                Type: Issue
              Status: Response Overdue
            Priority: Default
                 SLA: NRAO E2E
      Template group: Default
             Created: 17 September 2019 06:09 AM
             Updated: 23 September 2019 12:41 PM
           Reply due: 25 September 2019 06:20 AM (1d 17h 38m)
      Resolution due: 18 June 2022 05:00 PM (999d 4h 18m)

Hi James,Phase and delay jumps are basically the same thing.  If you use PCCOR to calibrate the instrumental delays in the original calibration, this should have corrected the phase jumps.  In other words, just run PCCOR as normal.  You should examine the PC for the GBT, it is possible (I"ve seen this before on old data) that the PC will not have been sampled often enough for this purpose.
Amy Mioduszewski
VLA Scheduling Manager
NRAO

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