Weather Report for December 8, 2010

Finally, a clear night from start to finish. The cirrus plume from the tropics that had been plaguing Arizona over the last few days finally moved off to the east and south. The seeing was highly variable all night long, ranging from 1 arcsec to over 2 arcsec, and at times this entire range could be experienced while observing a single target. This is the official, scheduled end to campaign 23, but tomorrow night is open on the telescope and so blazar monitoring will continue for an additional night.