MDM Observatory 2.4m Telescope Observing Report for 2019 Jun 02 Observer(s): DeFelippis Institution(s): Columbia Univeristy Instrument: OSMOS Worked for 8 hours (most of the night) Conditions were Photometric most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Beg: Clear, Winds Calm Mid: Clear, Winds Calm End: Clear, Winds Calm Observing Summary: Took spectra in i-band of qso field. Observed single target in r-band for 4 hours (time series). Attempted to rotate spectrograph 77 degrees, unplugged instrument and after replugging and rebooting were unable to get it to connect with the telescope again. Finished night at 4am. ------------------------------ Submitted on 2019 Jun 3 [4:06:27]