Observers: Gerke, Croxall, Grammer Telescope Operator: Geno Bechetti Support Astronomer: Olga Kuhn Instrument: MODS1 Observing log for 02-11-2013 Skies are mostly clear. Some scattered clouds in the south, but nothing major. Humidity hoovering at 65%. Roof clear of ice. Mast clear of ice. Moderate wind. Play-by-play: 01:40 - trying to cool mirrors which are warm due to not being opened at all last night due to ice. Wind is bouncing all over the place right at the limit. 02:00 - Open the dome humidity and wind are both on the rise. 02:45 - 2.3" FWHM... but collimation not converging. Temperature gradient of 1deg across the mirror Temp difference of ~7deg between mirror and ambient 4:30 - Had to close due to humidity strong temperature gradients in the mirror persisting humidity came down but the wind stayed high with gusts up to 40-59m/s