[daip] [Fwd: dbcon]

Eric Greisen egreisen at nrao.edu
Mon Dec 4 10:45:43 EST 2006


Hanno Spreeuw writes:
 > Hello, could you please help me with this?
 > Thanks in advance,
 > Hanno.
 > 
 > -------- Original Message --------
 > Subject: dbcon
 > Date: Tue, 21 Nov 2006 16:34:10 +0100
 > From: Hanno Spreeuw <hspreeuw at science.uva.nl>
 > Organization: Universiteit van Amsterdam
 > To: daip at nrao.edu
 > 
 > Hello, I am trying to concatenate two (u,v) datasets using dbcon,
 > assuming stokes V=0.
 > This is 1989 VLA data, one is RR the other is LL, the data were taken at
 > the same time.
 > DBCON will not concatenate:
 > 
 > Task DBCON  (release of 31DEC04) begins
 > STOKES RANGES DO NOT OVERLAP
 > Purports to die of UNNATURAL causes
 > 
 > Is there a way around this?
 > 

So long as the data are already calibrated, use PUTHEAD to change the
STOKES reference value of the LL data set to -1.0 (RR).  Then DBCON
will be happy.

Eric Greisen




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