AIPS Patches

Patches to 15APR99

This page most recently updated on $Date: 2001/12/28 20:52:19 $ (UT)

You will find patches to known bugs in 15APR99 here.

The following is a list of pointers to the different patches in this document.

TVCPS and other tasks that use the image catalogue. 1999-05-14, 1999-06-18
APGPS and TECOR 1999-05-14
CLIP, DTCHK, RESEQ address UV data wrongly 1999-05-25
REGRD crashed under Solaris, others 1999-07-06
UVCOP errors selecting channels, IFs 1999-07-21
IMAGR selects wrong fields 1999-07-22
FITAB followed by FITTP makes unreadable files 1999-07-27
FITAB did not write image tables and quantized floating images 1999-08-09
PRTTP patched code did not convert DOCRT to reasonable values 1999-09-07

The remainder of this document is comprised of the patch descriptions pointed to by the above references.

Task:

TVCPS and other tasks that use the image catalogue

Summary:

The file sequence number is not stored in nor retrieved from the image catalog on little-endian (Intel byte- order) computers. This causes TVCPS (and perhaps other tasks and verbs that use the image catalogue) to fail. You do not need to apply this patch on big-endian computers.

If you are not sure whether you should apply this patch find out which version of ZDCHI2 is used and check the value assigned to BYTFLP: if this is zero then you do not need this patch.

The patch file was incorrect in the period 1999-05-14 to 1999-06-18. It matched the old rather than the new version.

Files:

       
      /15APR99/APL/SUB/CATN2L.FOR

Fix:


      
                Fetch the file listed above and place it in
                    the corresponding area ($APLSUB
                    on your system.
              
  COMRPL $APLSUB/CATN2L.FOR
              
  COMLNK $AIPPGM/AIPS
              
  COMLNK $YPGM/*.FOR
              
  COMLNK $YPGNOT/*.FOR
              
  COMLNK $QYPGM/*.FOR
              
  COMLNK $QYPGNOT/*.FOR
              
  COMLNK $APGOOP/*.FOR
              
  COMLNK COMLNK $QPGOOP/*.FOR

Documentor:

            Chris Flatters

Date:

 1999-05-14

Documentor:

            Eric Greisen

Date:

 1999-06-18




    Task: 
  
          TECOR and APGPS

  
Summary:
  
        TECOR and APGPS store the dispersive 
              delay with the wrong sign.

  
Files:
  
       
      /15APR99/APL/PGM/OOP/APGPS.FOR

             
      /15APR99/APL/PGM/OOP/TECOR.FOR

  
Fix: 
  

      
                Fetch the files listed above and place them in
                    the corresponding area ($APGOOP
                    on your system.
              
  COMLNK $APGOOP/APGPS
              
  COMLNK $APGOOP/TECOR
      

  
Documentor:
  
            Chris Flatters
  
Date:
 1999-05-14



    Task: 
  
          CLIP, DTCHK,
                RESEQ

  
Summary:
  
        CLIP assumed that the Stokes axis was the
              second axis with compressed data and hence could get the
              addressing of the UV data wrong, e.g. for the VLBA
              Correlator output.
              DTCHK did not fix the address pointers to
              address VIS(3,*) and so worked only for compressed data.
              RESEQ did not multiply the pointers by 3
              for expanded (previously compressed) data and so failed
              on compressed data.

  
Files:
  
       
      /15APR99/APL/PGM/CLIP.FOR

             
      /15APR99/APL/PGM/NOTST/DTCHK.FOR

             
      /15APR99/APL/PGM/NOTST/RESEQ.FOR

  
Fix: 
  

      
                Fetch the files listed above and place them in
                    the corresponding areas ($APLPGM for
                    CLIP, $APGNOT> for the others) on your system.
              
  COMLNK $APLPGM/CLIP
              
  COMLNK $APGNOT/DTCHK
              
  COMLNK $APGNOT/RESEQ
      


  
Documentor:
  
            Eric W.
                  Greisen 
  
Date:
 1999-05-25



    Task: 
  
          REGRD

  
Summary:
  
        REGRD would fail unpredictably on Solaris (and
              possibly other platforms too) due to a buffer being 2x too
              small.  

  
Files:
  
       
      /15APR99/APL/PGM/NOTST/REGRD.FOR

  
Fix: 
  

      
              Fetch the file listed above and place it in
                  the corresponding area ($APGNOT)
		  on your system.
              
  COMLNK $APGNOT/REGRD
      

  
Documentor:
  
            Patrick P.
                  Murphy 
  
Date:
 1999-07-06



    Task: 
  
          UVCOP

  
Summary:
  
        UVCOP used the increments for frequency and
              IF suitable to the output data set to compute a
              channel-selection mask into the input data set.  If the
              frequency axis precedes the IF axis, data selection
              errors occured if both BIF > 1 and BCHAN/ECHAN selected
              fewer than all of the spectral channels.  The error
              appeared in 15OCT98 on August 24.

  
Files:
  
       
      /15APR99/APL/PGM/NOTST/UVCOP.FOR

  
Fix: 
  

      
              Fetch the file listed above and place it in
                  the corresponding area ($APGNOT)
		  on your system.
              
  COMLNK $APGNOT/UVCOP
      

  
Documentor:
  
            Eric W.
                  Greisen 
  
Date:
 1999-07-21



    Task: 
  
          IMAGR

  
Summary:
  
        IMAGR in OVERLAP 2 mode did not select the
              next field to Clean properly due to incorrect maxima
              information.

  
Files:
  
       
      /15APR99/Q/SUB/OOP/QCLEAN.FOR

  
Fix: 
  

      
              Fetch the file listed above and place it in
                  the corresponding area ($QOOP)
		  on your system.
              
  COMRPL $QOOP/QCLEAN
              
  COMLNK $QPGOOP/IMAGR
      

  
Documentor:
  
            Eric W.
                  Greisen 
  
Date:
 1999-07-22



    Task: 
  
          FITAB combined with FITTP

  
Summary:
  
        Until this patch, UV data sets written out with
      FITAB, read back in with UVLOD or
      FITLD, processed, and then written out with
      FITTP could contain AIPS history records which will
      define the data set falsely to the standard reading tasks in
      AIPS.  The data-writing tasks have been changed to avoid writing
      out pre-existing AIPS history and some of the data reading tasks
      have been modified to allow the error to be circumvented in data
      sets written since FITAB was released.

  
Files:
  
       
      /15APR99/APL/PGM/PRTTP.FOR

             
      /15APR99/APL/PGM/NOTST/FITTP.FOR

             
      /15APR99/APL/PGM/NOTST/FITAB.FOR

             
      /15APR99/APL/PGM/NOTST/UVLOD.FOR

             
      /15APR99/APL/PGM/NOTST/IMLOD.FOR

             
      /15APR99/HELP/IMLOD.HLP

             
      /15APR99/HELP/UVLOD.HLP

             
      /15APR99/HELP/PRTTP.HLP

             
      /15APR99/HELP/FITLD.HLP


  
Fix: 
  

      
              Fetch the files listed above and place them in
                  the corresponding areas (1 in $APLPGM, 
                  the next 4 in $APGNOT, and the last 4
                  in $HLPFIL) on your system.
              
  COMLNK $APGNOT/FITTP $APGNOT/FITAB
              
  COMLNK $APGNOT/IMLOD $APGNOT/UVLOD
              
  COMLNK $APLPGM/PRTTP
      

  
Documentor:
  
            Eric W.
                  Greisen 
  
Date:
 1999-07-27



    Task: 
  
          FITAB

  
Summary:
  
        FITAB failed to copy the image data to the
      output buffer when quantized, but floating, images were written.
      The correct number of bytes appeared in the output file, but
      none of the correct data.  Extension tables were not written for
      image files, but should have been okay for uv files.

  
Files:
  
       
      /15APR99/APL/PGM/NOTST/FITAB.FOR

      
  
Fix: 
  

      
              Fetch the file listed above and place it in the
                  corresponding area ($APGNOT) on your
                  system.
              
  COMLNK $APGNOT/FITAB
      

  
Documentor:
  
            Eric W.
                  Greisen 
  
Date:
 1999-08-09



    Task: 
  
          PRTTP

  
Summary:
  
        PRTTP was broken by the FITAB patch of July 27.  The
       symptom was a failure to convert DOCRT=1 to 72 character width
       and DOCRT=-1 to 132 printed width.  15OCT99 responds to the
       actual width of terminals and parts of that new code crept into
       the patch.

  
Files:
  
       
      /15APR99/APL/PGM/PRTTP.FOR


  
Fix: 
  

      
              Fetch the file listed above and place it in the
                  correspondin area ($APLPGM) in your
                  system.
              
  COMLNK $APLPGM/PRTTP
      

  
Documentor:
  
            Eric W.
                  Greisen 
  
Date:
 1999-09-07




Pat Murphy