[daip] [!4751]: aips - TYAPL for EVLA data 3.bit

[Eric Greisen]

Eric Greisen updated #4751
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       Staff (Owner): Eric Greisen (was: -- Unassigned --)
              Status: Closed (was: Open)
                 Due: - Cleared - (was: 04 April 2014 11:22 AM)

TYAPL for EVLA data 3.bit
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           Ticket ID: 4751
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/4751
           Full Name: Jose-Francisco Gomez
               Email: jfg at iaa.es
             Creator: User
          Department: AIPS Data Processing
       Staff (Owner): Eric Greisen
                Type: Issue
              Status: Closed
            Priority: Default
      Template Group: Default
             Created: 02 April 2014 11:22 AM
             Updated: 02 April 2014 02:37 PM



First - CASA may be preferred by management and it is good to
help debug that project.  Many users however prefer to use
AIPS from the beginning.

The PGN portion in TYAPL is frequently useful for 3-bit data.
The 64 "IFs" or spectral windows are NOT 64 FREQIDs.  There
might be separate FREQIDs if your data set included some 
observations at e.g. 4-5 GHz for a few hours followed by some
at 7-8 GHz at later hours.  FREQIDs are for data taken at different
times or such different frequencies/setups etc that they really
must be calibrated/flagged separately.

Run PRTAB on the FQ table - if there is more than 1 row in that table
then you have more than one FREQID (but do not confuse the 64 lines
of print for the first row for multiple rows).

Eric Greisen




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