MDM Observatory 2.4m Telescope Observing Report for 2018 Feb 12 Observer(s): Li Jiang-Tao Institution(s): University of Michigan Instrument: OSMOS/R4K No Observing (see comments below) Bad weather most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Clouds all night. Observing Summary: Weather was bad, so only take some in dome wavelength calibration and flat data. The data was taken well at the beginning, but after #0054, the data is no longer stored on the computer. There is no error messages come out. Don't understand what's wrong. ------------------------------ Submitted on 2018 Feb 13 [6:32:14]