A difficult night with a lot of thick cirrus to contend with that
streamed into southern Arizona in advance of a coming storm.
Thinner patches of cirrus and occasional holes just allowed spectropolarimetry
of less than 10 of the brighter blazars. Photometry was out of the
question. Seeing hovered around 2 arcsec when stars could be seen.
The forecast is for much worse conditions for the next two nights as
the wet, warm storm will be nearly centered on Kitt Peak.