Hello!
I love the ASIAIR Plus but ZWO has not produced a user manual for it. The ASIAIR Pro manual is not only outdated, but it leaves out many of the settings and what they do.
In any event, here's my question: With my 100mm refractor I've been getting terrific autoguiding numbers, down as low as .27" and .34". The other night I was set up and did my polar alignment. I got it very close, within 50 arc-seconds on both Alt and AZ axis. But my guiding numbers were moving all over the place, sometimes as low as .4" and other times around .9" all the way up to over 1" (usually on the RA axis). It didn't seem very windy at all, at least on the ground, and the clear sky chart in my region was reporting good seeing conditions. Yet my guiding was relatively unstable, at least in comparison to other imaging sessions.
Though I managed to get a good image with the stars looking good, I am wondering if there's a factor or parameter that I've overlooked. I spent the evening I just described changing the aggression settings on the RA and DEC axis, but this generally did not help a lot, or it would help but then a few minutes later the guiding numbers started creeping up again.
What might cause this?
Jerry
