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7.1 Open-up Procedure

  1. Go up on the roof, inside the shed, and remove the mirror cover from the flat and store in the wall holder. Caution: Never remove or install the mirror cover with the shed moved back. Open the garage door by pushing the button on the side of the light switch. At the front of the housing push the OPEN button to roll the housing back. Also open the hatch cover at the top of the tunnel. Note! Observers are currently not allowed on the roof . The Observing Technician or 2.1m telescope operator should be notified to open the shed and tunnel.

  2. Push on the main power button at the slit head control panel.

  3. Take the covers off the number 3 mirror, slit head, the slit end of the TV-zoom lens system, and finder flat mirror.

  4. Check that the high voltage pot is turned down all the way (CCW) on the slit viewing TV. Turn on the TV camera with the switch on the camera power/controller unit. Turn on the the two monitors inside the observing room, the two distribution amplifiers, the digital TV memory and the guider interface.

  5. If not already logged in on the feed computer (lisa), do so by logging in as ``tcp'' using the password posted on or near the terminal. If the computer is in some other unknown state, see A Quick Guide to the New Coudé Feed Control System (hereafter known as Telescope Manual).

  6. When you are ready to unstow the telescope, click the left mouse button on the ``open/stow'' button in the main telescope control (TC) window. Another subwindow will open showing the status of the telescope and its various parts. Click on the ``open'' button to unstow the telescope. A comment will appear in the status box in the TC window when the telescope is ready.

 

 

Figure 6: Sky Coverage for Coude Feed.


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Next: 7.2 Setting the Grating
Previous: 7 The Coudé Feed Telescope