Attached is a plot of the operator selected observatory mode (H1:ODC-OBSERVATORY_MODE) for March 8 2017 (March 8 2017 00:00:00 UTC - March 9 2017 00:00:00 UTC). A value of 10 corresponds to observing.
As of now the summary page (https://ldas-jobs.ligo-wa.caltech.edu/~detchar/summary/day/20170308/lock/segments/) looks like the attached, and the top right panel doesn't agree with Patrick's plot.
Summary says 69.1% observing, 28.9% not locked. It might be related to the fact that some DMT segments were not generated on that day due to DMT problem (look at the white gap in "observing" and "calibration" on the top left). These numbers are skewed here but I don't know how exactly. What is the numerator and what is the denominator?