- 79% duty cycle at 75-80 Mpc, overall data looks quite clean

- a few lost locks due to earthquakes

- microseism stayed under 0.5 um/s

- no Omicron triggers for 2nd half of shift

- on Dec 28, ~20 Hz glitches occurred for most of the day, Hveto found ASC-CSOFT_Y_OUT_DQ to be responsible (possible scattering?)

full shift: https://wiki.ligo.org/DetChar/DataQuality/DQShiftLHO20151228