I have a question about guiding and guide calibration. So here’s my problem.
During an imaging session, I will go through guide calibration, start guiding and have a pretty good night (RMS - 0.5 to 0.. On other nights I will use the exact same set-up, do a guide calibration again, only this time the dec and ra plot graphs will fly wildly off the chart and I have to stop the session as I can’t recover it. Sometimes this will happen during the same session if I slew to another target and do calibration again (should I be doing this?).
My set-up doesn’t change from night to night. My polar alignment is within 7 arc sec. My settings don’t change. My calibration pulse is set to 500. Not sure if this is the correct value but I read on this forum somewhere that’s the value I should use.
Can I re-use a previous nights calibration say from a week ago when I know everything was working? Should I be calibrating when I set-up again?
My mount is a SW AZEQ6GT. When it works I all works, I get really good guiding.
I did read on this forum to ensure my guide calibration has been done properly but it was never explained what “properly” was. So any advice would be appreciated.