[daip] AFARS problem BLC, TRC

Eric Greisen egreisen at nrao.edu
Mon Jan 9 17:34:14 EST 2012


Lawrence Rudnick wrote:
>   Eric & Leonia -  in 31DEC12, patched as of yesterday on my mac, there 
> is a big problem that has apparently been inserted into the BLC, TRC for 
> AFARS.
> 
> I am currently uploading FARSAM and FARSPH cubes to ftp area 
> (pub/staff/lrudnick) so you can run this yourself.  Here is the history 
> from running AFARS three times with three different sets of BLC,TRC (on 
> the RM axis).  The three maps are very different from each other, 
> because there has apparently been a constant offset put into some of the 
> RMs, while some of them are right.  Here is an IMVIM between two of the 
> pairs of maps, on an equal scale, so you can see. (I've only included 
> points with strong signals, so there should not be any effect from 
> including more or less of the RM spectrum).

I said that I did not understand all of the issues.  Nowe I do and a MNJ 
tomorrow will fix another problem - besides the fact the NFS messed up 
my putbck of CHANGE.DOC!

Eric




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