Every now and then, I have an issue with PHD2 losing the star after a lengthy auto focus. During the unguided autofocus, the guiding star drifts outside the search area and PHD sends a “Star lost” error. This instantly sends SGP in recovery mode. The issue is exacerbated by the fact that when recovering, SGP will restart the whole process, including the auto focus, throwing everything into an endless loop (center target -> stop guiding -> auto focus -> start guiding -> star lost -> recovery -> go to step 1).
In the attached log this happens shortly after 22:55:22.
sg_logfile_20180507185735.zip (154.6 KB)
The issue would be solved if SGP would tell PHD to acquire a guiding star every time when it restarts guiding. Asking in the PHD forum, I learned that there are more ways to programmatically stop guiding in PHD. Quoting from Andy’s answer:
It would be very useful to have SGP using always the method c.