[daip] [!5254]: aips - Problem with CQ table

[Andy Biggs]

Andy Biggs updated #5254
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Problem with CQ table
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           Ticket ID: 5254
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/5254
           Full Name: Andy Biggs
               Email: abiggs at eso.org
             Creator: User
          Department: AIPS Data Processing
       Staff (Owner): -- Unassigned --
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template Group: Default
             Created: 30 July 2014 11:48 AM
             Updated: 30 July 2014 11:48 AM
                 Due: 01 August 2014 11:48 AM (2d 0h 0m)
      Resolution Due: 07 August 2014 11:48 AM (8d 0h 0m)



Hi there. I'm reducing VLBA-only data from 1995 and getting error messages from various tasks relating to the CQ table e.g.

localh> SPLAT1: ** WARNING - Subarray   1 contains VLBA data, but there is a
localh> SPLAT1: ** problem with the CQ table.  No VLBA decorrelation corrections
localh> SPLAT1: ** will be implimented.  See EXPLAIN FITLD for more information.

This may not be a problem, but I'd like to avoid any unecessary errors if possible.

One thing that might be salient is that there were errors during FITLD related to the Stokes labelling:

FITLD1 12:46:20        !!!!!!!!!!!!!!!!!!!!!!!!!!!
FITLD1 12:46:20 The Stokes labelling is inconsistent between
FITLD1 12:46:20 files. This happens when non-VLBA stations are
FITLD1 12:46:20 involved in single-polarization observations.
FITLD1 12:46:20 No harm results from this. If you really want
FITLD1 12:46:20 the correct labels run PUTHEAD
FITLD1 12:46:20        !!!!!!!!!!!!!!!!!!!!!!!!!!!

I did indeed use PUTHEAD to fix the labelling issue.

The CQ table is shown here:

MULTI       .UVDATA.   1  Disk= 3    CQ Table version   1
Title: CORRELATOR PARAMETER FREQUENCY TABLE
Created by      FITLD on 30-JUL-2014 08:30:14
Last written by FITLD on 30-JUL-2014 08:30:55
Ncol 14  Nrow 1    Sort cols:
    Table has     2 keyword-value pairs:
   NO_IF    =            4
   TABREV   =            1
   Table format incompatable with FITS ASCII tables
 
COL. NO.      1         2          3         4          5            6
     ROW   FRQSEL   SUBARRAY   FFT_SIZE   NO_CHAN   SPEC_AVG   EDGE_FRQ
  NUMBER                                                       HZ
       1      1         1         512        16        16      15349490000.0
       1                          512        16        16      15357490000.0
       1                          512        16        16      15365490000.0
       1                          512        16        16      15373490000.0
Type Q to stop, just hit RETURN to continue                                     

 pc016987  PRTAB(31DEC14)    219     30-JUL-2014  13:45:36    Page    2
COL. NO.         7                      8                    9         10
     ROW   CHAN_BW        TAPER_FN                       OVR_SAMP   ZERO_PAD
  NUMBER   HZ
       1   500000.00000   HANN    HANN    HANN    HANN       0          0
       1   500000.00000                                      0          0
       1   500000.00000                                      0          0
       1   500000.00000                                      0          0
Type Q to stop, just hit RETURN to continue                                     

 pc016987  PRTAB(31DEC14)    219     30-JUL-2014  13:45:39    Page    3
COL. NO.        11         12          13           14
     ROW      FILTER      TIME      NO_BITS      FFT_OVLP
  NUMBER                  SECONDS
       1         0        2.10         1             0
       1         0        2.10         1             0
       1         0        2.10         1             0
       1         0        2.10         1             0

This is 31DEC14, freshly installed today.

Cheers,
Andy

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