TITLE: 01/11 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 60.9258Mpc
INCOMING OPERATOR: Jim may or may not decide to venture in (I have been in contact with him this evening)
SHIFT SUMMARY:
H1 has been in OBSERVING for almost 6hrs at a fairly steady 60Mpc.
Continue to experience non-normal winter weather with forecast for possibly more snow overnight & freezing temperatures. Have also had fairly blizzard like conditions with winds just below 20mph. Have been in contact with OWL shift operator with regards to coverage & they will do what feels safe.
I am leaving NOW to brave roads home & so H1 will be flying on automatic pilot for a few hours or until the morning.
I have talked with William Parker (LLO operator) and aprised him of our situation.
LOG:
DIAG_MAIN message: PCAL: Y RX PD is 0.01 OFF
- Last person other than me....at 4:30pm (0:28utc)
- H1 has been UNDISTURBED since 22:43utc
- 0:34-1:34 GRB Stand Down Time
- 2:14 PI Mode 27 quickly rang up. Sign change damped it.
- 2:33 TCSy Chiller LOW flow (no action taken)
~
5:30utc (9:30pmPST)6:37utc (10:37pmPST) H1 had a lockloss. Looking at the seismic trends showed nothing (my guess is this was a PI mode ringing up).Sheila had remote access and tried to relock, but H1 kept dropping at ALS LOCKING. She mentioned that the Diff beatnote was low. I made an attempt to drive back in, but Rt10 was impassable for my vehicle.
Observatory Mode was left at OBSERVING through the lockloss and upt to around 12:40am. Then I asked Sheila to switch it to UNAVOIDABLE (we don't have a SNOW STORM option).
This is where H1 will be left until the morning.
Looking at the summary pages (PI Overview under ISC and then I looked at the last aka broadband monitoring; the blue spike right at lockloss is from signals saturating during lockloss, not from a ringing up PI), this lockloss didn't appear to be from PI.
Thanks, Terra! Yeah, also checking the VERBAL_ALARM log, we have a lockloss at 6:36:55utc & no PI Mode notifications.