TITLE: 10/19 [DAY Shift]: 15:00-23:00 UTC (08:00-16:00 PDT), all times posted in UTC STATE Of H1: Locked. Observing @ ~76 MPc. SHIFT SUMMARY: Recovered easily from single lock loss. No apparent corresponding seismic cause. Evan and Sheila took time after recovery to work on measurements at ISCT6. Kyle and Gerardo working on leak checking at mid Y. Joe and Chris working on sealing concrete enclosure over X arm. Kiwamu fixed SDF value for H1:PSL-ISS_SECONDLOOP_SIGNAL. INCOMING OPERATOR: TJ ACTIVITY LOG: 15:02 UTC Jeff B. checking TCS chillers in mechanical building 15:16 UTC Jeff B. back 15:20 UTC Crew heading out to work on X arm concrete enclosure approximately four doors past mid X. 17:10 - 17:17 UTC Stepped out of control room ~18:39 UTC Corey in control room giving tour to two people 19:28 - 19:48 UTC Stepped out of control room 20:11 UTC Kyle getting part out of LVEA 20:21 UTC Kyle back, reports light is on in room immediately after card reader 20:25 Evan and Sheila moving computer from PSL racks to ISTC 6 20:33 UTC Joe driving up X arm to work on beam tube sealing 20:54 UTC Betsy to LVEA to turn on CDS wifi for Evan and Sheila 20:55 UTC Kyle and Gerardo to mid Y for leak checking 21:11 UTC Betsy to LVEA to check on wifi/issue logging into computer 21:18 UTC Betsy back 21:29 UTC Evan and Sheila done ~21:52 UTC Kyle and Gerardo back 22:02 UTC Kyle and Gerardo heading back to mid Y 22:15 UTC Joe back from beam tube enclosure, Chris still there. 22:31 UTC John to mid Y to join Kyle and Gerardo