[daip] calib question

Eric Greisen egreisen at nrao.edu
Tue Oct 9 17:12:36 EDT 2012


bob at physics.ucdavis.edu wrote:
>> bob at physics.ucdavis.edu wrote:
>>>   still fails with wtuv=.01 and weightit=2. here is the full output
>> Are you still using the "gain constrained" methods?  Try normal ones.
>>
>> Otherwise I do not know what is going on - the messages suggest that it
>> is failing on subarray 1 - does it work on others?
>>
>> Eric
>>
> no, i just simplified to subarray 1 to see if that worked.
> anyway, it works fine for just phases. i will try amplitudes without
> constraint as a test.
> 
> 
> thanks
> 
> 
> bob

My reading of the help file says that if you use GCON you MUST set 
GAINERR to the expected errors for each antenna.  You left these 0 so it 
is trying to make the solution fit exactly and that will always fail.

Eric




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