The attached screenshot shows what's happened with out OMC ASC offsets over the laser two weeks. 

On Jan 21st, Jennie W measured the OMC ASC offsets 82383, but there was a sign error in putting them in so kappa C decreased, the range was also lower during this time with the wrong offsets. During Monday's commissioning time we understood the error and went back to the settings before the change, and kappa C increased more than we expected it to.  There was also some recovery of range which was probably because the squeezing improved with the fixed OMC alignment, but could also be becuse of Ibrahim improved A2L, then range is still not as good as it was 3 weeks ago. 

Yesterday there was a problem where the ASC safe.snap file was overwritten with many wrong values, perhaps the observe settings were erroneously saved to the safe (Dave is investigating) 82637.  This ended up blasting large numbers to the PUMs, and ringing up the violin modes, which cost us an hour of observing time and high violins over night, but it could have had worse consequences if we hadn't caught it quickly. 

Dave helped us recover by reverting the safe.snap to a week old file, which had the wrong OMC QPD offsets in it.  Then when Corey got to observe, he accepted the OMC offsets 82643, which meant that we had lower optical gain and worse squeezing overnight. 

Now we have lost lock and I've edited the safe.snap to have the previous (better) offsets, this means that when we get to observe we should accept differences, and check that kappa c is 1.01 or 1.02 after we thermalize.