Testing AIPS++  Detailed Log

April 13/14, 2000, session:

note: TTT = trouble
      QQQ = question

Talked to Tim Cornwell and he told me that 'setjy' will make a point
source in the Model Data.  So I'm doing that now for all my
calibrators, not just 3C286.  In retrospect I did see something about
this in the documentation, I'm just still too locked into the AIPS
way of thinking about all this.

QQQ> I have 10 calibrators and it was a bit tedious to have to run 
through them all one by one.  Is there a way to specify more
than one at a time?

QQQ>Now I need to set the u,v range to 0,25 klambda for 3C286. The 
documentation tells me to use 'setdata'.  I am looking at setdata
and it doesn't say anything about u,v ranges.  Stuck.

Talked to Kumar and after a few tries he figured out how to put a 
uvrange into setdata.  You have to put 
UVW[1]^2 + UVW[2]^2 + UVW[3]^2 < (25000*0.06)^2
This is crazy.  I've submitted an enhancement request.
I like the bug form.  I have a feeling I'll be using it again.

I'm a little worried that this uv restriction got applied to all my
calibrators.  Hopefully I can undo this operation after I solve for
the 3C286 gains.

Set up 'setsolve' with 60 second integrations.
Solve took a couple minutes and claims to have written solutions for
58 "slots".  Looks like the uv restriction got applied to everybody.

Now trying to use fluxscale to bootstrap flux densities of calibrators.
Not working.  Stuck.  Went to find Tim.

Tim showed me how to be more clever in applying the setdata selection.
Soon this will be made much easier with u,v range buttons or something
similar.  We also reran solve and got some good solutions.  In my
first attempt it looks like I did not get good solutions.  I'm not
sure what I was doing wrong.

TTT> Use of names vs. use of FIELD_ID needs to be made consistent
throughout as the way it is now sometime you need one, sometimes
another.  Personally I'd rather just use the name and not have to
remember the FIELD_ID.  

In spite of having lots of good solutions, fluxcal still refuses
to produce anything useful.  Tim says I need to talk to Athol.  Stuck.

Tried plotting up my solutions.  Default setting produce an absolutely
worthless display.  Not sure how to get anything reasonable out of this.
Stuck again.  

Athol came in and installed some new script.  Seems this might be a known
bug since my CDROM was written on 4/10/2000.  Restarted aips++.  Same
problem.  Stuck.

--- end of testing.  
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