Had to wait about 30 minutes after the end of evening twilight for clouds to move off to the east. After that, the night was photometric. Seeing was usually between terrible (>2 arcsec) to OK (around 1.5 arcsec). This ends the 22nd observing campaign at Steward Observatory for the Fermi mission. It was a highly successful week, with a loss of only around 7 hours of observing time to weather.
