MDM Observatory 2.4m Telescope Observing Report for 2019 Sep 09 Observer(s): Rupert Institution(s): MDM Instrument: OSMOS/B Worked for 3 hours (all night) Conditions were Mixed most of the night. No equipment or software problems were encountered. Seeing and Weather: High Humidity from 9:30 until end. Beg: Seeing 1.0 arcsec, Cirrus, Winds Calm Mid: Clear, Winds Calm End: Clear, Winds Calm Observing Summary: Night started out fine. Humidity rose above the observing limit around 9:30 and stayed that way for the rest of the night. Was able to get a little data at the beginning at least. ------------------------------ Submitted on 2019 Sep 10 [2:20:24]