Date: 2016 Nov 22 UT Observers: M Fausnaugh, S Johnson TO: Steve A. SA: Olga K. Moon phase: 7.5 days after full Summary: Clouds and fog on the mountain at the beginning of the night. Ice build up on the enclosure prevented us from opening the entire night. Details (All times UT): ---------------------------------- Plan: 23:00 -- cloudy and 100% humidity. staying closed, some engineering work on LBT 01:00 -- conditions persist 03:30 -- clouds cleared, humidity still at 100% 06:00 -- humidity down to 97.5, temperature below at dew point -- ice build up will prevent us from opening all night