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Reports until 03:03, Monday 07 December 2015
LHO General
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)
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)
Hit LOAD, same error returned.
patrick.thomas@LIGO.ORG - 03:14, Monday 07 December 2015 (24010)
Same error on HAM3 ISI.
Images attached to this comment
patrick.thomas@LIGO.ORG - 03:17, Monday 07 December 2015 (24011)
Hitting LOAD on HAM3 ISI does not work either.
patrick.thomas@LIGO.ORG - 03:24, Monday 07 December 2015 (24012)
No error on HAM6 ISI.
patrick.thomas@LIGO.ORG - 03:26, Monday 07 December 2015 (24013)
No error on HAM5 ISI.
patrick.thomas@LIGO.ORG - 03:28, Monday 07 December 2015 (24014)
No error on HAM4 ISI.
patrick.thomas@LIGO.ORG - 03:31, Monday 07 December 2015 (24015)
No error on ETMX ISI.
patrick.thomas@LIGO.ORG - 03:43, Monday 07 December 2015 (24016)
ETMY Stage 1 T240 watchdogs tripped in the process of going to isolated.
patrick.thomas@LIGO.ORG - 04:29, Monday 07 December 2015 (24017)

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
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)
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)
Make that 50 um/s.
patrick.thomas@LIGO.ORG - 00:53, Monday 07 December 2015 (24005)
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)
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)
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 SEI (OpsInfo, SEI, SUS)
cheryl.vorvick@LIGO.ORG - posted 23:06, Sunday 06 December 2015 - last comment - 00:11, Monday 07 December 2015(23999)
Again, MICH DARK doesn't lock, but this time I looked at what the BS and it's ISI are doing, and this might be the issue

7:00UTC, no locking

I decided to do an Initial alignment and look more closely that usual, and again made it to MICH DARK which isn't locking.

I looked at the BSC2/BS ISI and saw that when MICH DARK is trying to lock, the ISI stage 2 is dark red on the ST2_BLRMS monitors.

Plots attached show MICH DARK trying to lock and not trying to lock.

Maybe this is normal, but lots of shaking is the symptom of the MICH DARK not locking, and ther BLRMS readbacks are showing a lot of shaking in the BSC2/BS ISI.

Images attached to this report
Comments related to this report
cheryl.vorvick@LIGO.ORG - 00:11, Monday 07 December 2015 (24000)SEI

Trending these channels, they spiked to these values 2 days ago, 12/5, but the level changes I see now are not present in the channels on 12/5.

As a test, I engaged stage 2 isolation, which no change to locking, and I ran INIT on the BSC2 SEI, and also no change to channels behavior.

H1 General
cheryl.vorvick@LIGO.ORG - posted 21:49, Sunday 06 December 2015 (23998)
Ops Eve Shift Mid-Shift Report: 5:38UTC, no locking, and issues getting MICH DARK to lock in Initial Alignment

State of H1: 9+ hours, no locks past DRMI

Current issues:

Images attached to this report
LHO General
corey.gray@LIGO.ORG - posted 16:10, Sunday 06 December 2015 (23993)
DAY Ops Summary

TITLE:  12/6 DAY Shift:  16:00-00:00UTC (08:00-16:00PDT), all times posted in UTC     

STATE of H1:   Lock Acquitistion

Incoming Operator:  Cheryl

Support:  None

Quick Summary:

Eerily similar to my shift yesterday:  First half H1 locked, and then 2nd half unlocked.  This time there was winds which forced me to not attempt locking.  A good note (highlighted in GREEN below) is that I was able to (1) get through an alignment, (2) have decent looking DRMI locking/flashing, & (3) able to lock PRMI (although it wasn't needed since alignment still looked decent).  Still NLN elludes me (seems like I've not taken H1 to NLN since early October!!)  :(

Shift Log:

LHO VE
corey.gray@LIGO.ORG - posted 15:52, Sunday 06 December 2015 (23997)
Ion Pump Alarm

Beam Manifold Ion Pump looks like it is railed at 10 at the beginning of the shift.

Non-image files attached to this report
H1 General
corey.gray@LIGO.ORG - posted 13:23, Sunday 06 December 2015 (23995)
H1 Update: And Now Winds Join In.

After the 20:20 lockloss, checked to see if I could get any where in locking, but H1 could not get past FIND_IR (never saw any X-arm locks).  Why are X-Arm locks suddenly harder?  Is it really due to all this seismic?

The EY BSCISI Location monitor had over 10000nm oscillations.  When it died, I tried switching Y-axis to 90mHz (this brought oscillations down, but did not improve anything with locking, so I returned 45mHz Blend).

Started an Initial Alignment.  ALS was sort of fine (Y-arm would break lock every few seconds/minutes).  INPUT_ALIGN would not lock the X-ARM.  At this point, I took locking DOWN to wait out the wind (will watch the End Station drifts on the 0.03-0.1Hz DMT Viewer to see when winds die down).

LHO FMCS
john.worden@LIGO.ORG - posted 12:19, Sunday 06 December 2015 - last comment - 13:25, Sunday 06 December 2015(23992)
LVEA Temperature control

Ambient emperatures are up and it appears that the LVEA is warming quickly so I have dialed down one heater;

HC 2B has been lowered to 9ma (one stage) from 13ma (2 stages).

Comments related to this report
corey.gray@LIGO.ORG - 13:25, Sunday 06 December 2015 (23996)

John feared an electrical glitch could have knocked H1 here, but his temperature change was around 20:13, a few min before H1 went down.

LHO General
corey.gray@LIGO.ORG - posted 12:08, Sunday 06 December 2015 - last comment - 12:26, Sunday 06 December 2015(23991)
Mid Shift Summary: Winds Starting to Pick Up

Winds have started to avg up around 20mph site-wide (gusts on X-arm up to 40mph).  Might be dying down?

Range dropped down to 74Mpc with winds.

EY BSCISI Location monitor has had some big oscillations of +/-10,000nm over the last few minutes.  SUS EY on the Tidal FOM (nuc1) has some clear sinusoids recently, too.

From 11-11:30amPST, Air Handler MAJOR alarm for LVEA 2B ("as usual"?)

Comments related to this report
corey.gray@LIGO.ORG - 12:26, Sunday 06 December 2015 (23994)

Similarly to yesterday, H1 drops out around lunch time (20:20UTC).  Winds were picking up & adding to our noisy useism.

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