MDM Trouble Report for 2005 Dec 27 Telescope: 2.4m Observer(s): Halpern, Tyagi (Columbia) Instrument: RETROCAM + CCDS Problem(s) Encountered: Since we began with an object 5 hours to the east, I expected that the telescope would lose tracking. Indeed, it obliged about a dozen times during the next three hours while tracking on the same object. So we lost that many 5 minute exposures. Various means were used to coax it back into position, but the bottom line is that we don't understand the problem. It may or may not depend on 'X', but even if so, we don't have a solution that is a function of 'X'. ------------------------------ Submitted on 2005 Dec 28 [6:57:51]