[daip] [!8171]: AIPS - REWAY

[Eric Greisen]

Eric Greisen updated #8171
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                 Due: - Cleared - (was: 18 March 2016 11:34 PM)

REWAY
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           Ticket ID: 8171
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/8171
           Full Name: Lynn Matthews
               Email: lmatthew at haystack.mit.edu
             Creator: User
          Department: AIPS Data Reduction
       Staff (Owner): -- Unassigned --
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template Group: Default
             Created: 16 March 2016 11:34 PM
             Updated: 17 March 2016 09:17 PM
      Resolution Due: 24 March 2016 11:34 PM (7d 2h 17m)



REWAY only changes weights.  It does nothing to the amplitude scale.

IMEAN's rms values are good so if they are higher then the image is worse
perhaps because something has happened to the amplitude scale to make
everything (signal and noise) larger.  But REWAY cannot by itself do that.
You should check the weights out of REWAY with e.g. UVPLT or ANBPL.  It 
can sometimes get odd results depending on what it stumbles across in the
data and the interaction between the windows, smoothing etc parameters
and your data scan structure.

Eric




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