I have a mid-1990’s Celestron badged G-11 which I’m trying to control via SGP 2.6.x
I’ve found that the “center-here” feature in the preview frame, or the centering feature in the target properties dialog, does not work as expected.
I have it set to iterate up to 6 times with a target of 50px accuracy.
Whilst the plate-solving and sync appears to work, the error does not appreciably diminish during each iteration. It might vary by up to 20 pixels (up or down) but never reaches the 50px goal.
There is a similar thread that alludes to issues with the centering algorithm on some mounts: Syncless center (offset mode) doesn't seem to work for celestron
Does anyone know if this applies to the G-11, and if so, is there any workaround?
Auto centering is a key feature of SGP for me and allows multiple targets to be automated without human intervention. If each target requires manual iterative centering, then it greatly reduces its value.
This does work on a Tak EM-200 mount, so I’m curious about why the G-11 behaves differently? I suspect it may be something to do with how the mount reacts to “sync” commands, and how SGP determines the error. If gotos are inaccurate, but the error is not being taken in account, I can see how the centering error might never reduce. I’m talking about 500-800 pixel errors, so not insignificant, and enough to ruin the framing of most targets.
Thanks and any feedback.