How to use the TV camera in the chimney

Updated on May 10, 2021, 9:44 am

There is a television camera in the telescope chimney which allows you to see the position of the comparison lamp mirrors, the corrector and everything else in the cage. It is good practice to turn it on before using Hydra to check and see if everything appears to be in the right place. In particular, the TV camera allows you to verify that the corrector has been deployed.

This camera is turned on from the TCS operator's console by going into the "command mode" and issuing the cryptic command:

local cfadc outlet1 move on

Be sure and turn it (and its associated light) off when you are finished! Use the command:

local cfadc outlet1 move off