Re: Target Zone Selection

["Glenn Gombert" <glenngombert@hotmail.com>]

I really agree with Arne’s comment”

“You've also seen the problems in combining data from
various Mark III sites.  I'd rather see one site concentrate on
some field or declination strip and not combine data.
We'll see how it all sorts out.  Note, for example, that
you can cover ~15 degrees around the North Celestial Pole
all night long from any given site even with the current
mount; you might consider limiting your survey to areas
of the sky like that if you want temporal coverage.

There were many difficulties encountered when trying to combine data from 
many different sites during the Mark III data collection effort. (Michael 
Richmond did a heroic job in combining the data and performing corrections 
for various color terms from the various Mark IV camera sites).

  The other factor is that the Declination drive on the Mark IV’s is much 
less precise than that of the RA Drive) which would make setup and operation 
(from day to day) much easier to accomplish…

  I plan to operate the Mark IV Camera (in Dayton) along the Declination 
zone of approximately zero degrees in Dec…overlapping the band that I was 
imaging ..when I was operating the Mark III Camera here.

Glenn G.

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