Main problems

There were no faults causing more than 2 hours downtime during period 41, but there was one problem that caused small amounts of down time on various occasions. As it was the single problem that cause the most downtime in the semester I will discuss it here.

• 2010-05-19 to 2010-05-26: StanCam pick-off mirror alignment: 2hr 0m

  Some work was done on the mirror that folds the light towards the FIES fiber head. At this time the mirror that folds the light to StanCam and which is mounted on the same unit was moved, likely because the glue that fixed the mirror had failed. This led to a change in the projected position of the FIES fibers in the StanCam image used to position targets on the fiber head. This made it impossible to do observations with FIES. Most of the time was lost to realizing this and find the new projected positions of the fibers on the StanCam image. The StanCam folding mirror was later realigned and re-glued.

  The main issue in this case was that after working on the mirror unit no test was done to check the full system of acquiring a target on the FIES fibers.