[daip] combining epoch 1950 and 2000 data

[Leonia Kogan]

Hi Tyler,

I can not say about DBCON. It is possible that DBCON can not concantanate 
the data with different epoch.

You can run UVFIX with the data of 1950 epoch. UVFIX recalculates 
UVW and change the epoch to 2000.
Then you can use DBCON.
May be it will help

Leonia

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>From owner-daip at kochab.cv.nrao.edu Thu May 24 19:03 MDT 2001
Date: Thu, 24 May 2001 12:06:24 -0700 (MST)
From: "T. Nordgren" <nordgren at lowell.edu>
To: aipsmail at cv3.cv.nrao.edu
Subject: [daip] combining epoch 1950 and 2000 data
Cc: nordgren at tortuga.lowell.edu
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Dear AIPS folks,
	I have two sets of u-v data using different
array configurations which I would like to combine.
I have D array data observed using epoch
1950 and C array data observed using epoch 2000.
DBCON dies claiming the two sets are of different
epochs. When I use EPOSW to change the epoch
of one of the files, it introduces a rotation in the
declination header which also causes DBCON to die
(since the declination attributes are now different).
	Simply put: how do I combine u-v spectral line data
files observed using different epochs?

Cheers,

Tyler Nordgren

Lowell Observatory
520-774-3358
nordgren at lowell.edu


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