Shift Summary: Ran A2L DTT check – Pitch and Yaw are both somewhat elevated. Tumbleweed baling has finished for the day. Work will continue on the X-Arm tomorrow.
Problem #1 - Started getting OMC DCPD saturations (due to Violin Mode 508.2 ring up), but lost lock before damping. Contacted Sheila and tried to give remote access.
Problem #2 – Could not give Sheila remote access due to a problem with the authentication server. Contacted Jonathan who corrected the problem (FRS 7677 aLOG #43993).
Problem #3 – There was a problem with the Foton filter files generated after last Tuesday’s maintenance window until today at 13:00, when Jim B. fixed this problem. See aLOG #43992 for description. Contacted Dave B. who rebuilt the Foton files for the SUSs and H1OMCPI. When I reloaded, the filter files the WDs for ITMX & ETMY tripped. By the time this was all squared away the violin modes had calmed down a bit.
Relocked the IFO without the ALS_DIFF problem had during the day shift. I had to dress up BS Yaw a little bit, but no other tweaks were required.
We were back to Observing in time to receive a GRB alert.