MDM Trouble Report for 2001 Jan 18 Telescope: 2.4m Observer(s): PI: Sackett; Observer: De Jong (Kapteyn Astronomical Institute) Instrument: MDM8K Problem(s) Encountered: Around 23:30 problem with TCS. Error message: 'RA encoder not responding'. Maybe because pointing at low angle? Also error message: 'Moving with autodome off', while autodome was on. Returned telescope to zenith and shut down TCS. After restarting TCS 3 of the mirror covers don't open, only south cover opens. Finally covers opened after tilting telescope to the east. ------------------------------ Submitted on 2001 Jan 19 [5:27:39]