You mean it¡¯s not tracking at all; after 20 minutes it hasn¡¯t moved? ?The mount should clock along, then receive your guiding correction in pulses. ?Not moving, or not autoguiding the moving?
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On Jan 22, 2025, at 4:53?PM, Jim Magill via groups.io <j-magill@...> wrote:
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I've been having problems with the mount (GM811G) stopping tracking (or not starting?) after a slew or plate solve.? ?This has happened many times (seen it in 30 imaging sessions?).? ? Problems usually follow a meridian flip.? Interesting that slews and plate solves at the beginning of an imaging session are seldom impacted.? ?And it does not happen all the time with meridian flips? --? I see it for about half the autofocus runs which occur after a meridian flip and for about a quarter of the plate solves (which occur after the autofocus).? ?I am using NINA to control the imaging session and NINA is commanding the slews and plate solves.? ?Tracking failures are easy to spot -- seeing star trails in the images NINA is displaying.? ?My usual solution to the problem is to toggle tracking off and then on again using the Gemini controller (on the PC, not using the hand controller).? ?Note that the tracking box on Gemini shows tracking to be on -- even if I know that it is off.? ?I am wondering if NINA and Gemini are having issues with each trying to control the pause after a slew.? Gemini has a control for this:? "Slew Settle Time" and NINA has a control for this:? "Settle Time After Slew".? ? How should these parms be set?? ?Use NINA or use Gemini?? ? ?I would assume that Gemini parameter should be less than the NINA parameter? --? if the other way around NINA would start issuing commands and the mount might ignore them since it was paused.? ?I have a full Gemini troubleshooting log from my previous imaging session where the problem occurred three times.? ? ?Any helpful advice?? ?I can provide the logs if requested.? ? Thanks? ?--? Jim
