Conflicting manual rotator behaviour

Sequence Generator
1

I have everything set up and manual rotation used to work well. I ran into something I have never experienced last night.

When I started the sequence, SGP took its test shot and told me to rotate the camera 65 degrees counter-clockwise. I rotated the camera by less that this amount to make sure I would not over-shoot it. At the next test shot, SGP then told me to rotate 56 degrees clock-wise…? I thought “ok… I overshot it, better be more careful” and followed this new set of instructions taking great care to take a step-by step approach going clock-wise this time. On the third test shot, the instruction from SGP was another counter-clockwise turn by some 60 degrees…!!!

I decided to pull the plug on the SGP rotation-assistant then and did the rotation manually.

Any idea what could have been happening?

thanks

2

People will need logs.

Rotations in telescopes are tricky because the direction will depend on the number of reflections. Also rotating a diagonal can cause the image angle to change by twice the angle by which the diagonal is rotated.

3

I will get the logs.

I was not using any diagonal.

First time I ever see this behaviour.