[daip] quarterly rept

[Eric Greisen]

Tony Beasley writes:
 > 
 > - UVCON - a new task to generate a uv database for a given array
 >   configuration. The array geometry can be specified in a number of
 >   different coordinate systems. Use of this task to simulate ALMA
 >   configurations is underway.

       Not really new - appeared 12/98.  Much revised in last 6 months

 > 
 > - IMAGR - multi-resolution clean has been added to IMAGR. It takes
 >   advantage of the multiple field capabilities to model the source
 >   simultaneously as a collection of Gaussian objects of different widths. 
     Options to make re-stats more efficient were also added.

 > 
 > - New task SCIMG - simple single-field image and self-calibrate a dataset.

        No - this is the complicated, multi-field version of SCMAP.

 > 
 > - Editing tasks EDITR, EDITA modified to allow rapid editing of multi-IF
 >   multi-polarization data via the CROWEDED adverb.
 >  
 > - Phase re-referencing - underlying routines re-referencing solutions to
 >   reference antennas were rewritten, correcting a number of long-standing
 >   bugs. Error reporting has been improved. 
 > 
 > - FILLM and DOCALIB=2 - FILLM now has the option of using antenna
 >   temperatures to set the data weights (CPARM(2)). Throughout all of AIPS,
 >   the option of applying calibration tables to both the data AND weights is
 >   now available thru DOCALIB=2. 

       Not antenna temperature - "nominal sensitivities"  the Ta did
not work.

 > 
 > - New task FGPLT to display times when uv-samples are flagged. 
 > 
 > - New installation wizard is approaching completion; using a Perl script
 >   the installation of AIPS will be significantly simplified. 
 > 
 > - Improvements to DBCON to allow the combining of disparate datasets. 
 > 
 > - Subtle bugs in the Linux compiler concerning roundoff were addressed. 
 > 
 > - Errors in UVCOP/UVFIX/UJOIN/CALIB/TI2HA/UVMTH/TBIN/SPFLG/SETFC corrected. 
 > 
 > Patches for 15OCT99
 > -------------------
 > 
 > - Patches for the AIPS tasks DBCON and IMAGR for the 15OCT99 distribution
 >   are available from the NRAO AIPS www page. 
 > 
 > Goals for Q2 2000
 > -----------------
 > 
 > - Continuing maintenance and user support.
 > - Complete installation/registration wizard for 31DEC99
 > - Low-level code development in support of NRAO instruments. 
 > - Continue updating user documentation.

       spelling corrected above

 > - Additional data editing and weighting tools (some completed,
         others being considered).

        note added remark

 > - Streamline loading and calibration of VLBI data.