There was some very light, scattered cirrus at sunset and possibly at other times during the night, but nothing significant enough to be noticed. Photometry was carefully done and it remains to be seen how many observations give consistent results when these data are reduced. Polarimetry of nearly 20 blazars were obtained. The seeing was much poorer than on previous nights, but rarely worse than 2.5 arcsec. For most of the night, the seeing hovered around 2 arcsec.
