Pointing

Contradicting reports have been received about the quality of the pointing for the targets and the guide star. In general, the pointing model for the telescope are made with the guide camera in the rotator, and we plan to make a pointing test with one of the instruments instead to look for possible differences. With the planned automatic guide star detection and centering system we would expect the effective pointing accuracy (only depending on any distortions as a function of position for the guide camera and the accuracy in the position of the guide stars) to improve a lot, largely independent of the intrinsic accuracy of the pointing model used.



Thomas Augusteijn 2006-12-04