MDM Trouble Report for 2017 Nov 02

Telescope: 2.4m
Observer(s): Douglas, Nunez, Halpern (Columbia)
Instrument: OSMOS

Problem(s) Encountered:
just before 10pm local/ 0500 UT / just after 00 LST, the telescope 
ran away. We were at RA~21, and next object coordinates were at 
RA~01. The telescope ran away WEST, even though the object was 
east of where it was, and we noticed when it approached the West 
limit at RA~18 and Airmass~4. It seemed like the telescope knew 
where it was, but just went the wrong direction.

We used the hand paddle to slew back near zenith, and then sent 
the telescope to zenith using the TCS; it did this without 
complaint. However, after this we couldn't reset the TCS display 
equinox using the Misc. Settings menu, and we couldn't send 
coordinates from JSkyCalc. We hit the TCS stop button, and this 
seemed to reset everything. The telescope started tracking again.
We sent coordinates for the same object we were trying to reach 
initially, and this time the telescope cooperated and went there. 


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Submitted on 2017 Nov 3 [10:21:43]