Displaying reports 60041-60060 of 83165.Go to page Start 2999 3000 3001 3002 3003 3004 3005 3006 3007 End
Reports until 17:13, Thursday 26 November 2015
H1 AOS (DetChar, INJ)
keith.riles@LIGO.ORG - posted 17:13, Thursday 26 November 2015 (23747)
Flagging CW injection transitions during observing mode
At Andy's request, I have compiled a list of psinject start/stop times that occurred
during observing mode, based on the times of starts, stops and errors reported in
the psinject log files on h1hwinj1. For inserting segments in the database, I have
substracted 1 second from the start time and added 1 second to the end time.
I have also verified that I can see a large glitch in H1:CAL-INJ_HARDWARE_OUT_DQ
at these times:

1130155228 1130155231 Oct 29 2015 12:00:11 UTC
1130155254 1130155257 Oct 29 2015 12:00:37 UTC
1132130708 1132130711 Nov 21 2015 08:44:51 UTC
1132130741 1132130744 Nov 21 2015 08:45:24 UTC
1132162463 1132162466 Nov 21 2015 17:34:06 UTC
1132162498 1132162501 Nov 21 2015 17:34:41 UTC

The tcl script used to find these times is attached, along 
with a concatenation of the psinject log files read by the script.
 
Non-image files attached to this report
LHO General
patrick.thomas@LIGO.ORG - posted 15:52, Thursday 26 November 2015 (23746)
Ops DAY End Shift Summary
TITLE: 11/26 [DAY Shift]: 16:00-00:00 UTC (08:00-16:00 PDT), all times posted in UTC

STATE Of H1: Observing @ ~ 75 MPc.
SHIFT SUMMARY: Lost lock for unknown cause. Relocked fairly easily. Observing since. Bubba came in to increase the temperature at end Y. Winds have calmed back down to between ~ 0 and 5 mph. Earthquake band has dropped back down to between 0.01 and 0.03 um/s.
SUPPORT: Bubba
INCOMING OPERATOR: Jim W.
LHO General
patrick.thomas@LIGO.ORG - posted 12:09, Thursday 26 November 2015 (23745)
Ops DAY Mid Shift Summary
Still in observing at ~ 79 MPc. The winds have started to come up and are between ~ 0 and 20 mph. The 0.03 - 0.1 Hz (earthquake) seismic band has increased at end X and end Y to between ~ 0.02 and 0.1 um/s. The 0.1 - 0.3 (microseism) band may be starting to slightly decrease.

SUS ETMY saturations continue. Have not seen signs of RF45 noise.

Bubba came in to increase the temperature at end Y.
H1 General
patrick.thomas@LIGO.ORG - posted 10:09, Thursday 26 November 2015 (23744)
Observing
ISI blends are on Quite_90.
The continuous wave injection appears to be running on PCALX (The 'Cont. Wave Inj Signal' box is purple on the CAL_PINJX_CONTROL medm).
I accepted the SDF difference for the SUS ITMY damping filter gain. Nutsinee told me I would have to because guardian would reset the change she made alog 23734. See attached snapshot.
There is one testpoint open on H1LSC.

Relocking sequence:

Moved ETMY in Pitch to lock ALS.
No DRMI lock after 12 min. Attempting to lock PRMI.
Locked on PRMI.
Adjusted both BS and PRM in Pitch and Yaw.
Requested DRMI_LOCKED.
Transition failed.
Locked on DRMI 1F after ~ 5 min.
Waited on DRMI_LOCKED for ASC loops to converge for ~ 3 min.
Stopped at ENGAGE_ASC_PART3 to wait for ASC loops to converge for ~ 10 min.
Engaged ISS second loop by hand.
NLN
PSL ISS diffracted power went to ~ 11% but eventually came back down to ~ 8%.
Images attached to this report
H1 DetChar (DetChar)
miriam.cabero@LIGO.ORG - posted 09:38, Thursday 26 November 2015 (23741)
Looking for a relation between IPC errors and blip glitches
Miriam, Andy

We checked a number of short, unexplained glitches (blip glitches) to see if they are due to missed samples between OMC-DCPD_SUM and LSC-DARM_IN1 or between LSC-DARM_OUT and SUS-ETMY (as in LLO aLOG 23058 ). No mismatches were found in either of them.

The times of those glitches were obtained from the PyCBC searches:
1127959777.60
1128085613.28
1128221842.47
1128264648.20
1128078450.31
1128264485.84
1128279893.94
1130132047.202
1129748691.016
1130156793.541
1131357114.918
1130768253.356
H1 General
patrick.thomas@LIGO.ORG - posted 08:50, Thursday 26 November 2015 (23742)
Lock loss
Cause unclear. Nothing on seismic DTT.
H1 CAL
patrick.thomas@LIGO.ORG - posted 08:28, Thursday 26 November 2015 - last comment - 08:58, Thursday 26 November 2015(23738)
Continuous wave injection is red on ops overview
From trending H1:FEC-117_GDS_MON_0 (the channel on the OPS overview) it looks like it changed around 21:35 UTC on Nov. 24. Is this because it was switched to PCAL X and the medm needs to be updated to use a different channel? alog 23701
Comments related to this report
david.barker@LIGO.ORG - 08:58, Thursday 26 November 2015 (23743)OpsInfo

good catch Patrick, yep it needs to be changed from CALCS to CALEX.

H1 FMP
bubba.gateley@LIGO.ORG - posted 08:26, Thursday 26 November 2015 - last comment - 08:38, Thursday 26 November 2015(23739)
Heat Increase
I have increased the heat at both end stations, End-X by 1.5Ma and End-Y by 1Ma. I have also increased the heat in zones 2B and 3A, each by 1 stage in the LVEA. I will continue to monitor all of these changes. 
Comments related to this report
bubba.gateley@LIGO.ORG - 08:38, Thursday 26 November 2015 (23740)
Zone 3A in the LVEA is not responding so I increased Zone 3B by 1 stage and will monitor.
LHO General
patrick.thomas@LIGO.ORG - posted 08:15, Thursday 26 November 2015 (23737)
Ops DAY Beginning Shift Summary
TITLE: 11/26 [DAY Shift]: 16:00-00:00 UTC (08:00-16:00 PDT), all times posted in UTC

STATE Of H1: Observing @ ~ 78 MPc.
OUTGOING OPERATOR: Nutsinee
QUICK SUMMARY: 
From the cameras:
The lights are off in the LVEA.
The lights are off in the PSL enclosure.
The lights are off at mid X.
I can not tell if the lights are on or off at 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 is between ~ 0.01 and 0.05 um/s.
The 0.1 - 0.3 Hz (microseism) seismic band is between ~ 0.1 and 0.4 um/s.

The winds are between ~ 0 and 10 mph.

The ISI blends are on Quite_90.

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.
LHO FMCS
patrick.thomas@LIGO.ORG - posted 08:04, Thursday 26 November 2015 (23735)
FMCS alarms
H0:FMC-CS_LVEA_REHEAT_4_DEGF is high (> 100). H0:FMC-CS_LVEA_ZONE1B_B_DEGF is low (< 60). Plot of minute trends for last 21 days attached.
Non-image files attached to this report
H1 General
nutsinee.kijbunchoo@LIGO.ORG - posted 08:03, Thursday 26 November 2015 (23736)
Owl Shift Summary

TITLE:   Nov 26 Owl Shift 08:00-16:00UTC (00:00-08:00 PST), all times posted in UTC

STATE Of H1: Observing at ~80 Mpc

INCOMING OPERATOR: Patrick

END-OF-SHIFT SUMMARY: Quiet night. Wind below 20 mph. Average Useism reads 2e-1. The 501.606 Hz line pretty much dissapeared into the noise floor so if the ifo lose lock the SDF difference for SUS ITMY damping gain can be accepted (Guardian doesn't turn the gain on so the gain will be 0). I just noticed the Airhandlers and Temperature alarm for the corner station. Patrick's posting some plots.

 

Happy turkey day.

H1 General
nutsinee.kijbunchoo@LIGO.ORG - posted 01:29, Thursday 26 November 2015 - last comment - 01:48, Thursday 26 November 2015(23733)
Sitting at NLN

Couple of violin modes are high. I'm watching the RMS to make sure they're not ringing up.

Comments related to this report
nutsinee.kijbunchoo@LIGO.ORG - 01:48, Thursday 26 November 2015 (23734)

Turned on damping filters for 501.606 with gain +100. The mode probably got kicked up by the recent earthquake. I accepted the changes in the SDF and set intention bit to Observe at 09:43 UTC. Now Observing at ~80 Mpc.

Images attached to this comment
H1 General
jim.warner@LIGO.ORG - posted 23:59, Wednesday 25 November 2015 (23732)
Shift Summary

TITLE:   Nov 25 Eve Shift 0:00-8:00UTC

STATE Of H1: Earthquake

END-OF-SHIFT SUMMARY: It started ok...

Activity Log:

Quiet until 6:00, when an earthquake from Brazil rolled in, haven't been able to lock since. ALS just fails as soon as it tries to lock. Got to Check Ir just as Nutsinee arrived.

H1 General
jim.warner@LIGO.ORG - posted 21:38, Wednesday 25 November 2015 (23731)
Mid Shift Update

Quiet shift so far, IFO still going at a little less than 80 Mpc. Winds quiet, microseism continues to trend down. 

H1 General
cheryl.vorvick@LIGO.ORG - posted 16:00, Wednesday 25 November 2015 (23730)
Ops Day Shift Summary: H1 locked all day

Title: Ops Day Shift: 16:00-00:00UTC (8:00-16:00PT) all times in UTC

State of H1: locked all day, range increasing as useism decreases, now at 79.6Mpc

Incoming Operator: JimW

Shift Details:

ETMY saturations:

LHO VE
kyle.ryan@LIGO.ORG - posted 14:39, Wednesday 25 November 2015 (23728)
1405 - 1430 hrs. local -> Shut down generator at X2-8
Will start the ion pump next week
H1 General
cheryl.vorvick@LIGO.ORG - posted 13:08, Wednesday 25 November 2015 (23727)
Ops Day Shift - Mid-shift Update:

As of 21:06UTC, H1 is still locked from last night, and currently at 77.5Mpc.

Winds are steady at 5-30mph.

Useism is decreasing, and currently between 0.2 and 0.4um/s.

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