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7 The Coudé Feed Telescope

The coudé feed telescope consists of a 0.9 m off-axis, paraboidal, image forming mirror, fed by a 1.5 m alt-azimuth mounted flat mirror. Due to this mounting configuration, observations north of +70 degrees will suffer from vignetting (figure 6). The flat mirror is moved under computer control either via push button controls on the operator console, or through the computer terminal. Various utility commands are available for storing coordinates, finding ephemeris stars, etc. These are discussed in the following sections.