make sure the ground wire is connected:
first to the mirror cell and
then to the camera
insert the nozzle into the dewar, and attach it using the bungee cord
opening the valve, start filling the camera's dewar with LN2; if using remotely controllable valve follow
instructions in a separate document
fill out LN2/camera log – listen for full dewar
cease flow when dewar is full
disconnect LN2 filler hose from camera dewar, move storage dewar off of telescope platform and south, to dome silo wall)
remove camera ground wire and clip it on silo, near storage dewar