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when you reach these Limits: STOP DATATAKING!

value	max	action
​median current per pixel in camera	115 uA	stop or reschedule
​maximum current in a single pixel	160 uA	stop or reschedule
​ abs(T_GAPD - T_ambient)	15° C	stop
​ T_container	40° C	stop
​ Zenith angle	~88°	stop or reschedule
​ Wind speed	exceeds 50km/h significantly or in regular intervals	stop
​ Clouds	no stars visible in pointing direction	stop or reschedule
Rain	it is raining	stop
​ clouded mirrors/water on mirrors or light pulser	stop

"stop or reschedule"?

stop

Stop the normal observation mode, by scheduling the task named Sleep on the ​ scheduler page for right now. This brings the system into a safe state and the shifter has time to think.

reschedule

In case it seems possible to observe another source, because e.g. another source is less obscured by clouds, the shifter is of course free to try that.

Also sometimes SpecialMeasurements can be done.

ToDo

• Explain how to check currents for alternative sources using smartfact.