Campaign 109 starts at the Kuiper Telescope on Mt. Bigelow, AZ, with
yet another titanic struggle to get data through cirrus clouds. It has
been very difficult to get a clear night since the middle of February.
After midnight, a bright moon approaching third quarter rose to illuminate the
clouds streaming over the observatory and made a poor observing situation
even worse.
Nevertheless, spectropolarimetry was obtained for over 10 blazars in seeing of
1.3-3 arcsec.