[daip] [!8347]: AIPS - blanking

[Eric Greisen]

Eric Greisen updated #8347
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                 Due: - Cleared - (was: 09 May 2016 08:55 PM)

blanking
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           Ticket ID: 8347
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/8347
           Full Name: Lynn Matthews
               Email: lmatthew at haystack.mit.edu
             Creator: User
          Department: AIPS Data Reduction
       Staff (Owner): Eric Greisen
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template Group: Default
             Created: 03 May 2016 09:17 PM
             Updated: 05 May 2016 09:23 PM
      Resolution Due: 11 May 2016 09:17 PM (5d 23h 54m)



Try my suggestion - if your initial cube has N channels and you wish to drop e.g. channels 10-20
run SUBIM with blc 0 0 1; trc 0 0 9 and then run it with blc 0 0 21; trc 0 to make 2 files of the same 
name and consecutive seq numbers.  Then point MCUBE at the first cube and set IN2SEQ to 2.
set NPOINTS to N.  It will make a cube with a regularly gridded axis 3 on the grid size of the
initial cube.  It will find no data for frequencies/velocities corresponding to channels 10-20 
and so will blank those planes.  MCUBE will not make a cube with an irregular freq/velo axis
(FQUBE can do that although it will retain the freq/velocity info in the FQ table).

Eric




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