Closing the Telescope
To close the telescope, reverse the procedure for opening. Always close the siderostat mirror cover before closing the shed roof over it. Always check that the tracking has been turned off and that the siderostat has been stowed at hour angle 0 and declination +30, before closing the shed roof.
TO PROPERLY STOW THE SIDEROSTAT
BEFORE CLOSING THE SHED ROOF
COULD RESULT IN SEVERE DAMAGE!
At the end of each night, the CAT observer should call the 120-inch control room (5952 or 5951) to report any problems or to report that no problems occured. The CAT control room is not routinely checked for notes left by observers. Problems or special needs wanting the attention of the daytime crew must be communicated to the 120-inch operator.