[daip] dbcon on different polarization datasets?

[Eric Greisen]

Susan Neff wrote:
> Hi Eric,
> 
> I'm trying to concatenate several UV data sets from 
> pre-EVLA data.
> 
> They started out from the same observations, but were 
> split apart
> earlier in the processing, to be IFs 1 and 2, and 
> polarizations RR
> and LL, so 4 separate UV datasets (long story).   They 
> are not
> polarization observations - I'm just trying to use 
> IMAGR to make
> a total intensity image.
> 
> I can get DBCON to combine the IF1 and IF2 for each 
> polarization,
> by relaxing the dopos constraints.  However,  I can't 
> get it to
> combine the RR and the LL.  I get an error message saying:
> 
> localh> DBCON1: STOKES RANGES DO NOT OVERLAP
> localh> DBCON1: Purports to die of UNNATURAL causes
> 
> Is there a way around this?   Would I cause horrible 
> things
> to happen in IMAGR if I brute-force changed the 
> polarization
> values in the headers?
> 
> 
> Sorry if this is a dumb question, and thanks for help,
> Susan
> 
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Not dumb - an actual issue.  For your purposes it may be best to PUTHEAD 
to make all seem like the same polarization.

Eric