aLIGO LHO Logbook

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patrick.thomas@LIGO.ORG - posted 08:12, Monday 07 December 2015 (24021)

Ops Owl End Shift Summary

TITLE: 12/7 [OWL Shift]: 08:00-16:00 UTC (00:00-08:00 PDT), all times posted in UTC

STATE Of H1: Unlocked
SHIFT SUMMARY: Earthquakes tripped most of the watchdogs at the beginning of the shift. Brought everything back except the HAM2 ISI and HAM3 ISI which had guardian user code error messages. Hugh is investigating.
SUPPORT: Hugh
INCOMING OPERATOR: Corey

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patrick.thomas@LIGO.ORG - posted 06:38, Monday 07 December 2015 (24019)

Current Status

Ran into guardian user error code messages for HAM2 and HAM3 ISI. Have done some investigating but don't dare change anything. Suspect it may be related to changes reported in alog 23695.

I haven't found a way to get around these.

H1 SEI

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patrick.thomas@LIGO.ORG - posted 04:54, Monday 07 December 2015 (24018)

BS GS13 gain

Noticed SDF differences related to the BS ISI stage 2 GS13. Clicking on LO cleared them.

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patrick.thomas@LIGO.ORG - posted 03:03, Monday 07 December 2015 - last comment - 04:29, Monday 07 December 2015(24007)

Starting to untrip watchdogs

Comments related to this report

patrick.thomas@LIGO.ORG - 03:10, Monday 07 December 2015 (24008)

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Guardian user code error after resetting HAM2 ISI watchdog. (see attached screenshot)

Images attached to this comment

patrick.thomas@LIGO.ORG - 03:11, Monday 07 December 2015 (24009)

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Hit LOAD, same error returned.

patrick.thomas@LIGO.ORG - 03:14, Monday 07 December 2015 (24010)

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Same error on HAM3 ISI.

Images attached to this comment

patrick.thomas@LIGO.ORG - 03:17, Monday 07 December 2015 (24011)

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Hitting LOAD on HAM3 ISI does not work either.

patrick.thomas@LIGO.ORG - 03:24, Monday 07 December 2015 (24012)

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No error on HAM6 ISI.

patrick.thomas@LIGO.ORG - 03:26, Monday 07 December 2015 (24013)

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No error on HAM5 ISI.

patrick.thomas@LIGO.ORG - 03:28, Monday 07 December 2015 (24014)

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No error on HAM4 ISI.

patrick.thomas@LIGO.ORG - 03:31, Monday 07 December 2015 (24015)

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No error on ETMX ISI.

patrick.thomas@LIGO.ORG - 03:43, Monday 07 December 2015 (24016)

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ETMY Stage 1 T240 watchdogs tripped in the process of going to isolated.

patrick.thomas@LIGO.ORG - 04:29, Monday 07 December 2015 (24017)

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Everything seems back except for HAM2 ISI and HAM3 ISI. These both have guardian user code error messages. This is preventing the IMC from locking. The ISC_LOCK guardian is stuck in the DOWN state waiting for the IMC.

Images attached to this comment

LHO General

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patrick.thomas@LIGO.ORG - posted 00:39, Monday 07 December 2015 - last comment - 01:09, Monday 07 December 2015(24002)

Ops Owl Beginning Shift Summary

TITLE: 12/07 [OWL Shift]: 08:00-16:00 UTC (00:00-08:00 PDT), all times posted in UTC

STATE Of H1: Unlocked
OUTGOING OPERATOR: Cheryl
QUICK SUMMARY:

Cheryl has been having trouble locking MICH in initial alignment. Two earthquakes have just hit as I came on shift:

5.6
34km NW of Illapel, Chile
2015-12-07 07:51:11 UTC 48.4 km deep

7.2
109km W of Murghob, Tajikistan
2015-12-07 07:50:07 UTC 28.7 km deep

A number of watchdogs have begun to trip.

From the cameras:
The lights are off in the LVEA.
The lights are off in the PSL enclosure.
I can not tell if the lights are on or off at mid X and mid Y.
The lights are off at end X.
The lights are off at end Y.

The 0.03 - 0.1 Hz (earthquake) seismic band has so far risen to ~ 5 um/s with the earthquakes.
The 0.1 - 0.3 Hz (microseism) seismic band is above the 90 percentile and has risen above .5 um/s with the earthquakes.

The winds are between 0 and 20 mph.

The ISI blends are on the nominal 45 mHz configuration.

From pinging:
CDS WAP is off at the LVEA.
CDS WAP is on at mid X.
CDS WAP is on at mid Y.
CDS WAP is off at end X.
CDS WAP is off at end Y.

Comments related to this report

patrick.thomas@LIGO.ORG - 00:44, Monday 07 December 2015 (24003)

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The 0.03 - 0.1 Hz seismic band has now risen to 10 um/s with the earthquakes. Every chamber except HAM1 now has a watchdog tripped. I'll leave these tripped until the earth settles.

patrick.thomas@LIGO.ORG - 00:45, Monday 07 December 2015 (24004)

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Make that 50 um/s.

patrick.thomas@LIGO.ORG - 00:53, Monday 07 December 2015 (24005)

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Current listed recent earthquakes:

5.5
29km SSE of Chayek, Kyrgyzstan
2015-12-07 08:30:57 UTC 26.1 km deep

4.8
108km W of Murghob, Tajikistan
2015-12-07 08:24:15 UTC 45.2 km deep

5.6
34km NW of Illapel, Chile
2015-12-07 07:51:11 UTC 48.4 km deep

7.2
109km W of Murghob, Tajikistan
2015-12-07 07:50:07 UTC 28.7 km deep

patrick.thomas@LIGO.ORG - 01:09, Monday 07 December 2015 (24006)

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Screenshot of ops overview showing currently tripped watchdogs attached. Screenshot of seismic blrms trends also attached.

Images attached to this comment

H1 General (GRD, SEI, SUS)

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cheryl.vorvick@LIGO.ORG - posted 00:19, Monday 07 December 2015 (24001)

Ops Eve Shift: no locking, no MICH DARK

Ops Eve Summary: 00:01-08:00UTC (16:00-23:59PT)

State of H1: unlcoked

Incoming Operator: Patrick Thomas

Helpers: Keita, Vern, Mike

Details:

H1 has been unlocked for about 12 hours.
Corey did an Initial Alignment, and I tried locking
with no locking, I decided to do an Initial Alignment
no change in locking, MICH DARK would not lock
looked for other things, found a behavior on BSC2 ISI that appears to be different from behvior two days ago, on 12/5
still not sure that BSC2 ISI anything related to not locking MICH DARK