My goal was to find out whether or not the RCG upgrade on January 13th has fixed the 18-bit DAC Major Carry Transitions. However, no evidence of DAC glitches found BEFORE OR AFTER the upgrade.

There were loud glitches in SRCL on January 10th but they do not associate with zero-crossing of the SUS MASTER OUT channels. Even if there were any DAC glitches, unfortunately, they would have had hidden below the noise floor (the glitch at LLO here  is seen at 40 counts max after highpass). On January 16th the high SR3 counts (counts = |65535| and above) do not seems to generate any glitches that are significantly louder than the noise floor. I have also picked out some of the time that the glitches in MICH are well above the noise floor and see if they are coincide with the zero-crossing. All the results are attached below. No DAC glitches found. However, that doesn't mean they do not exist....

I used the 4th order 20 Hz highpass on the control signal because it worked well with Livingston glitch data (plot attached).

The glitch time I used for January 10th are [0.3915, 0.5791, 1.127, 4.474, 7.934, 8.265, 10.78, 11.33, 13.45, 18.88], and [1.952, 2.782, 3.401, 4.932, 6.713, 7.916, 9.398, 11.1, 14.68, 15.96, 16.38, 18.23] for January 16th. I used Laura's python script (from alog16354) to identify spots on the SUS data that correspond to the glitches.