[vsnet-chat 1634] Re: plate archives

[bas@lowell.Lowell.Edu (Brian Skiff)]

     We have the Indiana asteroid survey plates here at Lowell (about 6500
8x10-inch plates).  They were mostly tracked at a mean asteroid motion with
apparently an unreliable micrometer, so often the images are not simply
trails.  We've measured several thousand asteroid positions on them, but
I wouldn't put them high on the list of plates to scan.
     If the PMM is looking for things to scan, I would certainly suggest
the Pluto Camera collection, at least those taken during Tombaugh's Planet X
search and the proper-motion series.  The former comprise the oldest 
homogeneous and reasonably deep sky sky survey (mag. limit B ~17, the entire
sky north of about -40 Dec, several plates in blue and red for each field).
Still quite a lot to be extracted from those plates.

\Brian

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