Hi Peter,
Quoting Ken’s answer:
Given the difference between the slew RA (that is where the mount thinks it is pointing) and the solved RA, EQMOD will silently drop the sync command (unfortunately w/o throwing an error). There is a self-protect limit built into EQMOD to reject suspect Syncs, if I remember right, hard coded at 5°.
How come, that you have that difference? Is the scope position after the flip looking right?
Regards,
Horia