I stopped in DC readout and Evan and I went into the LVEA to look for the flashing light that Kyle reported (alog 22931). We think we may have located it somewhere under HAM4 but could not determine the source without crawling under the output beam tube. So we left it for later investigation. I also found a phone near the PSL enclosure with the line still connected. The power was unplugged but I unplugged the line from the wall as well. I also unplugged the extension cord from the wall that the phone had been unplugged from. We also heard what sounded like a drop of water falling in a cave. The light was on in the CER and we turned it off on the way out. We noted that some of the light from the CER leaks into the LVEA through an opening in the wall for a cable tray. We were in there from around 00:51 UTC to 01:14 UTC.

Jim and Dave turned off the wireless access point that was turned on for Kyle. (alog 22931)

I had to engage the ISS second loop by hand.

I had to restart the GraceDB query script.

Jenne ran the a2l script.

I accepted in SDF the alignment offsets that Cheryl made to MC2. (alog 22933) (see first attached)

I reverted the SDF differences for the H1:SUS-ITMY_L2_DAMP_MODE8 and H1:SUS-ITMX_L2_DAMP_MODE5 filter modules (see attached). Jenne and I claim this is alright because the gain on these is 0. Could someone tell us if they changed these and why?

Unfortunately LLO went down from a power glitch just as we came back. We went into observing at 02:01 UTC. The range is around ~ 79 MPc.