TITLE: 07/13 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Earthquake
INCOMING OPERATOR: Patrick
SHIFT SUMMARY:
Today we had multiple electronics glitches on the BS ISI CPS's which tripped the ISI. Jim went out to power cycle in the morning & then reseated cards in the afternoon. Jim has a striptool running on his computer looking at the CPS for the BS ISI. So, if we get another BS ISI trip, one should go look at his striptool to see if there is a spike on the StripTool.
Majority of today was spent continuing to damp fundamental (~500Hz) violin modes, updating Guardian settings needed to damp them, and also update the violin mode table wiki page. We have damped all of these modes to a point where we are now happy & can now NOT have to skip the VIOLIN_MODE_DAMPING_1 Guardian step. So after 1-attempt, all the violin modes have been happy for us---so now we should be able to proceed all the way to NOMINAL_LOW_NOISE.
Jeff, Hugh, & Patrick will continue damping violin modes.
Jenne & Thomas are currently running a reverse A2L to get us to a good alignment state for the Test Masses.
We are currently at about 50-55Mpc.
Terra & Anamaria mentioned being available if we need additional help.
One other operational note is that we don't have a viewable AS90 (purple) trace on the wall StripTools. This is related to some work Kiwamu performed. We should get used to it since this channel will not be around after O2.
LOG:
- 15:46 Elizabeth working on All Sky camera on roof
- 15:49: Jim heading to BSC2 to power cycle BS ISI CPS Satellite rack (out at chamber)---this is due to another BS ISI Watch Dog Trip.
- 16:39: @LOW_NOISE_ASC (skipping VIOLIN_MODE_DAMPING_1) & addressing violin modes now.
- Jeff K, Hugh, & Corey working on ITMx, ETMx, & ETMy violin modes
- 16:55: Communications Message from Kendall at Hanford site. Seeking LHO Communications contact. Forwarded her to Bailey.
- 17:04: Kiwamu heading to CER to check out some RF cable options & also went out to elec rack at HAM6.
- 18:00-19:16 WP7075: RF signal cables for HAM6 work
- 20:50 Chandra to mid-stations for tools
- 21:08 LOCKLOSS: BS ISI had another CPS Watchdog trip (Jim heading out to address)
- 21:30 Liz brought in another tour