Here's Periodic Error (PE) analysis of my EQ6. To generate this graph, I've captured 6 worm cycles (6x 8mins) of drift using PERECORDER. This was then imported into PECPrep for analysis and to create PE correction (PEC) file for EQMOD ASCOM driver.
The anlaysis shows my mount has 21 arcsecs peak to peak error. Pretty typical of these mounts, but still shocking!
I've yet to do a proper analysis of the mount with PEC applied. I've never needed to with autoguiding, but I think it's time to give it a go next time under the stars.
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