Mostly light, scattered cirrus was in all sections of the sky by the end
of evening twilight. The clouds were at their most irritating at the start
of the night and conditions generally improved as the night wore on.
There were few periods, however, when the sky was totally clear and photometry could be obtained.
Spectropolarimetry was slowed only during the first couple of hours of
the night. The seeing was fairly good and stable (1.2-1.5 arcsec).