MDM Trouble Report for 2012 Jan 16 Telescope: 2.4m Observer(s): John Thorstensen (Dartmouth) Instrument: Modspec + Nellie Problem(s) Encountered: Three items to report: 1) The AC computer is showing flaky values (see graphs) and is sometimes complaining that the input data must be corrupted. 2) The guider focus is way beyond the reach of the motor mike, and the resulting donuts are un-guidable. I left the motor mike at one end of its travel; it wants to go quite a bit farther. I would have fussed with it myself but only had a few minutes of darkness left when I finally opened. 3) I tried to rotate the instrument to about +30 for a target, but the rotator refused to go past +20 or so. I couldn't see anything obvious that it was hanging up on. I was a little south of the equator, about 2 hours west. ------------------------------ Submitted on 2012 Jan 17 [7:30:32]