Reports until 16:31, Friday 03 January 2020
LHO General
corey.gray@LIGO.ORG - posted 16:31, Friday 03 January 2020 (54271)
Transition to EVE Log

TITLE: 01/04 EVE Shift: 0:00-08:00 UTC (16:00-0:00 PST), all times posted in UTC
STATE of H1: Not Locked
OUTGOING OPERATOR: Cheryl
CURRENT ENVIRONMENT:
    SEI_CONF state: WINDY
    Wind: -
    Primary useism: -
    Secondary useism: -

Summary:

H1 just had a lockloss, which looks like it was due to a High Voltage trip at HAM6 (which trips due to Vacuum pressure at HAM6).  Several people have been investigating & trying to restore via instructions from Richard, but have not been able to untrip the HAM6 Hight Voltage.  Richard M is now driving out.

This lockloss was at 22:59 UTC & since its fairly confirmed to be due to a hardware issue, we should be marked DOWN for CORRECTIVE MAINTENANCE from that time (vs about 0:25 when we took OBSERVATORY MODE to that state).