[daip] CALIB failure (31DEC03 AIPS on DEC ALPHA) w/ basic settings

[Daniel Lebach]

Hi Eric,

Thanks for your prompt reply.
> 
> If you ask for only 2 antennas then you cannot get antenna-based
> solutions.  At least 4 antennas must be used.
> 
Is this a new feature?  I set APARM(1) = 2 (just as I always have).
I prefer to get solutions one baseline at a time to get phases that
include structure effects (note that I use no structure model).  If I
use more than 2 antennas then I am necessarily imposing closure
constraints, and I don't want that.  Note that the baseline-based
phases I get are exported out of AIPS (after the model phases are
added so that total phases are exported) for further analysis with
software designed to handle baseline data.  All I want from CALIB are
best-fit phase corrections to the phases in the input CL table
(SOLMODE 'P').  CALIB used to provide these for me just fine until
now.  Did CALIB change?  If so, can you provide me the source code
for the 31DEC02 version of CALIB?  I no longer have access to that.
(That old source code is useful only if I can embed it into
31DEC03 AIPS.)

Dan