Problem(s) Encountered:

On the way to the first target of the night the telescope didn’t complete the slew; the Point button turned red near the end. Refreshing the TCS and pressing the Point button again completed the slew, but I didn't recognize the resulting target field. So I went to zenith and used the tilt meters to test and reset the coordinates, which I found were off by 12 minutes of time to the east.  This number, while familiar to denizens of the 1.3m, is of mysterious origin.  I hope someday to understand its practical, if not cosmic, significance.

Solution:

This 12 minutes in HA is indeed a common occurrence, typically when the telescope axes require homing.  I’ve never understood it either.  On less frequent occasion, declination can also show a value of around +46, even though it is physically oriented closer to +32.  For this one, it is often necessary to do a forced home through the command line otherwise the TCS will flag an error if a declination >~75º is demanded.  For some reason, even if you set the declination to it’s actual value, something in the code continues to add that additional 15 or so degrees “under the hood”.