[daip] [!7690]: AIPS - How to remove the 'RFI' in VLBA continumm observation data?

[Eric Greisen]

Eric Greisen updated #7690
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       Staff (Owner): Eric Greisen (was: -- Unassigned --)
                 Due: - Cleared - (was: 16 December 2015 09:06 AM)

How to remove the 'RFI' in VLBA continumm observation data?
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           Ticket ID: 7690
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/7690
           Full Name: Hui Zhang
               Email: hzhang at shao.ac.cn
             Creator: User
          Department: AIPS Data Reduction
       Staff (Owner): Eric Greisen
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template Group: Default
             Created: 03 December 2015 11:32 AM
             Updated: 15 December 2015 05:30 PM
      Resolution Due: 15 December 2015 11:40 AM 



It is not normally necessary to mess with FPARM(9) and FPARM(10)
5 * rms is usually good.  RFLAG can delete too much but you can use NOISE and SCUTOFF
with FPARM(3) < 0 and FPARM(4) < 0.   If a NOISE or SCUTOFF is too low in some IF raise it 
before allowing the flagging to be done.

EDITR is for continuum data not line data such as you have (even though the
goal is continuum you have spectral data with spectral issues).

SPFLG is probably the best editor and VLBI usually has a small enough
number of baselines to make that task manageable.

Eric Greisen




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