During opening, we again saw the secondary E axis Galil fail to stop on a full step, despite further work on the Galil by Jon B. and Wendell this afternoon, after which Steph and Russell exercised the secondary without incident. The first time we homed the axis, tcc_prim reported a 148 microstep error. We immediately saw the same problem as soon as we re-enabled the collimate process again. This time, homing showed a 1 microstep error. We did not see the problem again during the night. Robert & Steph verified that the same fiducial tables were used for both pointing models taken this dark run. The difference between the two models that was noted last night is not due to the fiducial tables. Pete & Craig called Russell to see if there were any TCC related problems that could have caused the difference. We eliminated axisDtime errors and problems with the earth orientation data block as possible causes. The mystery continues. We opened at 20:30 under partly cloudy skies. Cart 1, no star with either model. Cart 3. field at ra=313, dec=-6. fk5infiber went to 260 +47? second fk5infiber went to nearby star. Offset ra+12, dec+2 to center star, then we got guide stars. Spectro 1 fill faults at 22:19 did not correspond to actual warming. Closed by high humdity at 00:05 MDT. i+trim2 reported -6.68V for CCD61. Watched seemed to report this about midnight (while we were closing), but a plot showed this had been the value since 10am this morning.