Azimuth bending errors dec07


        The telescope was brought back online after the painting project in early dec07. During this period we had a few azimuth bending limit errors. These errors occur when the difference between the two azimuth encoders (dome side enc1, ch side enc2) get larger than about 800 encoder counts. This can happen if the azimuth arm is being bent for some reason. It can also happen if one of the encoders disengages from the encoder rack gear. The errors occurred on 09dec07 and 10dec07.

09dec07 az bending error (.ps) (.pdf): The two events occurred at 5:42 and 7:20 am.
10dec07: az bending error (.ps) (.pdf): This occurred around 11pm .


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