MDM Observatory 2.4m Telescope Observing Report for 2011 Feb 16 Observer(s): Jackie Faherty Institution(s): American Museum of Natural History Instrument: Nellie No Observing (see comments below) Bad weather most of the night. No equipment or software problems were encountered. Seeing and Weather: Clouds all night. Observing Summary: Initially I opened the slats and the garage door along with the dome and drop out but never opened the mirror covers. There were looming clouds overhead at sunset and the 4M didn't open. So at 7pm I decided to close until conditions improved. I left the slats and garage door open but closed the dome and drop out and turned everything off. Around 1am the humidity reached 99%. I closed everything (slats and garage door) at 5am not realizing that some moisture was getting into the dome with the slats and garage door open. I filled the dewar at the start and end of the night. ------------------------------ Submitted on 2011 Feb 17 [6:13:32]