#*'''CCD Temperature:''' Displays the current CCD temperature, and buttons for cooling down and warming up. The camera takes 10 - 15 minutes to cool, and will stabilise at approximately -70 ºC. Cool the camera at the start of observations and warm it up once you are done.
''Note: It is advisable that DARK frames should be taken with the shutter in the "ALWAYS CLOSED" mode. BIAS frames (especially if multiple frames are taken) SHOULD ALWAYS be taken with the shutter in the "ALWAYS CLOSED" mode since this will deactivate the iris-shutter in the closed state and prolong the lifetime, see alsohttps://topswiki.saao.ac.za/index.php/Mookodi#Suitable_Uses.
From a terminal window: