MDM Observatory 2.4m Telescope Observing Report for 2019 Jun 07 Observer(s): Ryan Chornock Institution(s): Ohio University Instrument: OSMOS/B Worked for 9 hours (all night) Conditions were Mixed most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Beg: Seeing 1.3 arcsec, Cirrus, Winds Light & Variable Mid: Seeing 1.3 arcsec, Patchy Clouds, Winds Moderate End: Seeing 1.3 arcsec, Clear, Winds Light & Variable Observing Summary: Lots of patchy cirrus at sunset, but it cleared out after about 9:30pm. Another patch of clouds came through around 12:30-1am, but it was clearer by dawn. I lost some time troubleshooting after there was one exposure with no light making its way to the CCD. Not sure what the cause and solution was, but after it resumed working, I had no further instrument problems later in the night. ------------------------------ Submitted on 2019 Jun 8 [5:58:20]