[daip] [!15373]: AIPS - AIPS APCAL opacity correction

[Eric Greisen]

Eric Greisen updated #15373
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AIPS APCAL opacity correction
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           Ticket ID: 15373
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/15373
                Name: JongHo Park
       Email address: jhpark at astro.snu.ac.kr
             Creator: User
          Department: AIPS Data Reduction
       Staff (Owner): Eric Greisen
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template group: Default
             Created: 29 December 2019 02:34 AM
             Updated: 07 January 2020 09:20 AM
           Reply due: 09 January 2020 12:05 AM (1d 14h 45m)
      Resolution due: 29 September 2022 05:00 PM (996d 7h 40m)

It does look like the L polarization is confusing APCAL badly.
Your suggestion to determine TRECVR and use DOFIT 0 sounds
like a good idea.  At such high frequency the opacity is
important.   I am not expert on APCAL and am confused about
how it works at all.  I will be experimenting with it using my recent
VLBA data to see if I can get a better understanding.

Let me know how it goes.

Thanks

Eric Greisen


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