MDM Observatory 2.4m Telescope Observing Report for 2010 Nov 11 Observer(s): Haojing Yan Institution(s): OSU Instrument: OSMOS Worked for 10 hours (all night) Conditions were Non-Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: Beg: Clear, Winds Calm Mid: Clear, Winds Calm End: Clear, Winds Calm Observing Summary: The night was rather clear, but non-photometric. As we haven't solved the focusing problem yet, the main observations tonight were mainly spectroscopic. Some remaining targets from the backup program of last night were also observed. The observer also took some time to take a bunch of test images to monitor the stellar image shapes over a ~30min period. While the worst case was not caught by this limited test, some sudden change of the shape (and hence the indication of sudden change in focus) is still clearly seen. All other observations went rather smoothly. ------------------------------ Submitted on 2010 Nov 12 [7:36:07]