MDM Trouble Report for 2016 Nov 03 Telescope: 2.4m Observer(s): Baldassare (University of MIchigan) Instrument: OSMOS-B Problem(s) Encountered: The first issue was that the instrument rotator failed (i.e., the hand paddle in the dome didn't work). I came inside and tried to issue a command for a small rotation through the GUI, which also failed and sent up an error message that the mirror covers were closed. I verified that the mirror covers were indeed all open. As in http://www.astronomy.ohio-state.edu/~martini/osmos/rotator.html, I turned the power on the rotator box off and on and restarted the GUI. The rotator still didn't work and gave the same error message. I thought I would close and open the mirrors again, so I stowed the telescope, and closed the mirror covers. However, they would not open again when I flipped the switch. Not sure what else I can do, but at least this happened at 4 a.m. ------------------------------ Submitted on 2016 Nov 4 [4:05:44]