Weather Report for January 13, 2017

Another long struggle with moonlit cirrus clouds tonight. Fortunately, Kitt Peak was on the correct side of a sharp cloud boundary to its west for most of the night, although most observations were made through thin cirrus. Clouds forced an end to operations at 0300 local time. The seeing was 1.2-1.5 arcsec. Nearly 15 blazars were observed (including multiple observations of CTA102), but little of the polarimetry will be accompanied by photometry.