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Description: The Acquisition and Guiding Unit
provides a rigid support for the acquisition television camera and autoguider
systems it contains, and a mounting for the Cassegrain instruments. The
autoguider is based on the use of a CCD as detector, which is fed by means
of a scanning prism assembly which can rotate about the instrument axis
and be moved radially to acquire an appropiate guide star. In addition
to the main instrument mounting face, the unit has an auxiliary focal
station, the so-called Auxiliary Port Camera. This unit also provides
another auxiliary port.
