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As you come in the inside door, there are two light switches on the
inside of the door jamb to your left, higher up than usual. The
bottom one is for red lights at the ground level; the other is for a
white light on the north pier at mezzanine level. (There is another
switch for the white light on the pier itself, just a few inches below
the light.)
The office is used by many observers. Please assist by keeping it neat
and clean. All lunch remains must be deposited in the covered garbage
can in the entrance way; otherwise rodents and insects will find their
way into the dome. If you open any windows, be sure to close and lock
them when you leave the dome!
There is a bathroom on the east side of the dome and water in the
darkroom in the southeast. DO NOT under any circumstances change the
settings of the heat exchanger in the darkroom.
Outlets for the telephone are located in the office just above the
desk, beside the main stairs to the mezzanine, and on the telescope
itself to the right of the dec clamp wheel.
Beside the mezzanine stairs near the phone jack are two switches. One
is for the ground level red lights and the other controls a small red
bulb at the top of the mezzanine stairs. Because the construction of
this dome presents unique orientation problems, the mezzanine stairs
present a dangerous hazard and it is suggested that this small red
light be left on whenever possible, at least until you are very
familiar with the dome. Notice the two alternate sets of stairs on
either side of the south polar axle. These are for use when the
mezzanine stairs are covered.
Under the stairs by the office door is an air compressor for the dec
preload. It comes on automatically and unpredictably whenever the
pressure drops below a certain level, so expect to the startled by it
occasionally. It's pretty loud.
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Figure 1: Ground Floor Layout |