MDM Observatory 1.3m Telescope Observing Report for 2017 Sep 19 Observer(s): Weil Institution(s): Dartmouth Instrument: Echelle Worked for 8 hours (most of the night) Conditions were Mixed most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: High Humidity from 3am until . Beg: Seeing 2 arcsec, Clear, Winds Moderate Mid: Seeing 2.5 arcsec, Clear, Winds Moderate End: Clear, Winds Moderate, High Humidity Observing Summary: Overall observing went well. Had to close early due to high humidity and the forecast only predicted increasing humidity for the remainder of the night. The TCS says slit=rain even though the slit closed properly during a very rapid spike in the humidity. ------------------------------ Submitted on 2017 Sep 20 [4:13:18]