[daip] UVFIX/CORRCOEF

[Eric Greisen]

Andy Biggs wrote:
> Hi Eric. A quick question for you: I just ran UVFIX on a dataset written 
> by SPLIT and then tried to STUFFR it together with other files that I 
> hadn't run UVFIX on. STUFFR choked as the CORRCOEF keyword in the header 
> was not the same for all files - UVFIX had changed it from a 1 to a -1. 
> I've changed it back to a 1 by hand, but I wanted to check that this is 
> okay.
> 
> Cheers,
> 
> Andy
> 

i find this curious and unlikely.  First, UVFIX just copies keywords it 
does not know about CORRCOEF itself.  Second, CORCOEF=1 says that your 
data are correlation coefficients not visibilities scaled by Tsys.  I 
also find that unlikely although I seem to remember a bug in which this 
parameter was recorded backwards for a period of time.

Eric Greisen