For reason that are unclear this problem appears to have spontaneously disappeared. Between last night and tonight, where time to flip is positive and counting down, the computer was not rebooted, sgp was not stopped and restarted. In fact, its target was not changed, no times or time zones where changed anywhere and the driver was left on align on sync as it was last night. What did change is, on a recommendation, I changed the driver from J2000 to JNOW. I did not build a new model tonight. I did slew to vega and do a plate solve and sync from SGP. We'll see if it continues to behave and flips at the correct time. Of course the mount was powered off and powered back on between the nights.
↧