MDM Observatory 2.4m Telescope Observing Report for 2016 Dec 05 Observer(s): Douglas, Nunez Institution(s): Columbia Unviersity Instrument: ModSpec/Nellie No Observing (see comments below) Conditions were Mixed most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Clouds from 1600 until 2000. Observing Summary: We were able to take a full set of calibration images before sunset, but once we tried to get on sky an hour later, all the images looked like bias frames again. After troubleshooting, we determined that it was the shutter. Erik told us there wasn't really any way to fix it overnight, so we closed down. ------------------------------ Submitted on 2016 Dec 6 [3:52:11]