Degradation in the rotator position encoder or its associated electronics has made it necessary to filter the readings to ignore faulty readings. Statistics have show any errors to only appear a few times a day, with some variation between days. Observers will only be notified when the errors become so frequent that they might affect the observation. We are investigating what is precisely the underlying problem so we can look for a definite solution.

Thomas Augusteijn 2010-02-09