Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The QUEST Large Area CCD Camera   We have designed, constructed and put into operation a very large area CCD
camera that covers the field of view of the 1.2 m Samuel Oschin Schmidt
Telescope at the Palomar Observatory. The camera consists of 112 CCDs arranged
in a mosaic of four rows with 28 CCDs each. The CCDs are 600 x 2400 pixel
Sarnoff thinned, back illuminated devices with 13 um x 13 um pixels. The camera
covers an area of 4.6 deg x 3.6 deg on the sky with an active area of 9.6
square degrees. This camera has been installed at the prime focus of the
telescope, commissioned, and scientific quality observations on the
Palomar-QUEST Variability Sky Survey were started in September of 2003. The
design considerations, construction features, and performance parameters of
this camera are described in this paper.

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The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
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The categories of this paper are: hep-th
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The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
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The categories of this paper are: eess
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The categories of this paper are: ao-sci
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The categories of this paper are: adap-org
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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
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The categories of this paper are: plasm-ph
3
The categories of this paper are: physics