MDM Observatory 2.4m Telescope Observing Report for 2010 May 03 Observer(s): Skinner, Spellmire, Thorstensen Institution(s): Dartmouth Instrument: modspec + echelle CCD Worked for 10 hours (all night) Conditions were Photometric most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Beg: Seeing 1.5 arcsec, Clear, Winds Calm Mid: Seeing 1.5 arcsec, Clear, Winds Calm End: Seeing 1.5 arcsec, Clear, Winds Light & Variable Observing Summary: A nice clear night but with somewhat mediocre seeing. Productive. John arrived at 10 PM, Julie left at 4 AM, Jason did the guiding, and a good time was had by all. We had one apparently novel problem with the telescope, and the mirror AC error message appeared once. ------------------------------ Submitted on 2010 May 4 [5:36:57] NOTE: This report replaces the previous 2.4m telescope observing report for 2010 May 03