[daip] [!7444]: AIPS - Creating CASA-readable uv data sets

[Amy Mioduszewski]

Amy Mioduszewski updated #7444
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                 Due: - Cleared - (was: 19 October 2015 11:08 AM)

Creating CASA-readable uv data sets 
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           Ticket ID: 7444
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/7444
           Full Name: Alexandra Truebenbach
               Email: alexandra.truebenbach at colorado.edu
             Creator: User
          Department: AIPS Data Reduction
       Staff (Owner): -- Unassigned --
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template Group: Default
             Created: 15 October 2015 11:08 AM
             Updated: 15 October 2015 03:34 PM
      Resolution Due: 23 October 2015 11:08 AM (7d 19h 33m)



Hi Alex,

You can use FITTP to write the data out as a fits file and then load it into CASA with importuvfits.  I would apply the calibration first with SPLAT before writing it out so you are not trying to transfer calibration tables, which I wouldn't trust to work.   Also CASA does not have fringe fitting so you will have to bring the data back into AIPS (exportuvfits and FITLD), and I would worry about doing the transfer too many times. 

I asked a colleague who transfers between AIPS and CASA hand he said the CASA will not like the internal sorting of the data so after loading, you need to run a "function"  in CASA to fix the sort order.  I am not much of a CASA user so I am just copying what I was sent. if you have problems on the CASA side, respond to this ticket and I will assign it to someone with more experience:

from recipes.setOrder import setToCasaOrder
setToCasaOrder(inputMS='input.ms',outputMS='resorted.ms')

I found a web page referring to setToCasaOrder, you can find it at:
http://casa.nrao.edu/active/docs/doxygen/html/namespacerecipes_1_1setOrder.html











Amy Mioduszewski
NRAO

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