Quote:
Originally Posted by ausastronomer
You are working in 2 axes therefore the pointing error residual based on the arc subtended by each encoder step of each encoder is squared.
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This is a 36% gain, or reduction in the pointing error.
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Hi John,
Thanks for the post.
Actually, when going from 8192 on each axis to 10,000 on each axis, the pointing
resolution potentially increases by around 49%.
(10,000 * 10,000)/(8192 * 8192).
Quote:
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Originally Posted by ausastronomer
Also note this does not allow for other errors which can further affect pointing accuracy like collimation errors, mount fabrication errors or non orthogonal mount axes.
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Peter's 30" is fitted with an Argo Navis.
By supplying it with pointing data that is of a higher resolution, the Argo Navis
Telescope Pointing Analysis System (TPAS) can also provide a more refined
analysis of these types of systematic pointing errors.