Displaying reports 59741-59760 of 83132.Go to page Start 2984 2985 2986 2987 2988 2989 2990 2991 2992 End
Reports until 10:17, Monday 07 December 2015
H1 AOS (ISC, SEI, SUS)
jason.oberling@LIGO.ORG - posted 10:17, Monday 07 December 2015 (24027)
Optical Lever 7 Day Trends

Attached are the oplev pitch, yaw, and sum trends for the last 7 days for all active H1 optical levers.

Images attached to this report
H1 ISC
stefan.ballmer@LIGO.ORG - posted 09:56, Monday 07 December 2015 (24026)
updated ASC and LSC ODC thresholds
Hannah Fair, Stefan Ballmer

Some of the ASC and LSC ODC bits that were not in the master bit mask were occasionally triggering mid-lock, without any obvious data degradation.
I updated the thresholds listed below. Since the IFO is currently not locked, the SDF is currently very red.

THE SDF PROBABLY NEEDS TO BE UPDATED WITH THESE THRESHOLDS.

# ASC
ezca['ASC-ODC_REFL_A_DC_LT_TH'] = -150
ezca['ASC-ODC_REFL_B_DC_LT_TH'] = -150
ezca['ASC-ODC_REFL_A_DC_GT_TH'] = -1000
ezca['ASC-ODC_REFL_B_DC_GT_TH'] = -1000
ezca['ASC-ODC_REFLA_DC_PIT_LT_TH'] = 0.3
ezca['ASC-ODC_REFLA_DC_YAW_LT_TH'] = 0.3
ezca['ASC-ODC_REFLB_DC_PIT_LT_TH'] = 0.3
ezca['ASC-ODC_REFLB_DC_YAW_LT_TH'] = 0.3
ezca['ASC-ODC_CHARD_PIT_LT_TH'] = 1000
ezca['ASC-ODC_CHARD_YAW_LT_TH'] = 1000
ezca['ASC-ODC_DHARD_PIT_LT_TH'] = 3500
ezca['ASC-ODC_DHARD_YAW_LT_TH'] = 3500
ezca['ASC-ODC_PRC1_PIT_LT_TH'] = 2000
ezca['ASC-ODC_PRC1_YAW_LT_TH'] = 2000
# LSC
ezca['LSC-ODC_MICHCTRL_LT_EQ_TH'] =  300000
ezca['LSC-ODC_MICHCTRL_GT_EQ_TH'] = -300000

Old values:
ASC-ODC_REFL_A_DC_LT_TH -150.0
ASC-ODC_REFL_B_DC_LT_TH -300.0
ASC-ODC_REFL_A_DC_GT_TH -900.0
ASC-ODC_REFL_B_DC_GT_TH -750.0
ASC-ODC_REFLA_DC_PIT_LT_TH 0.2
ASC-ODC_REFLA_DC_YAW_LT_TH 0.2
ASC-ODC_REFLB_DC_PIT_LT_TH 0.15
ASC-ODC_REFLB_DC_YAW_LT_TH 0.15
ASC-ODC_CHARD_PIT_LT_TH 750.0
ASC-ODC_CHARD_YAW_LT_TH 750.0
ASC-ODC_DHARD_PIT_LT_TH 2500.0
ASC-ODC_DHARD_YAW_LT_TH 2500.0
ASC-ODC_PRC1_PIT_LT_TH 1500.0
ASC-ODC_PRC1_YAW_LT_TH 1500.0
LSC-ODC_MICHCTRL_LT_EQ_TH 150000.0
LSC-ODC_MICHCTRL_GT_EQ_TH -150000.0

LHO General
corey.gray@LIGO.ORG - posted 08:55, Monday 07 December 2015 (24024)
Monday Morning 8:30 Meeting Notes

Overview Meeting Notes:

Tasks For Tomorrow's Maintenance 

 

H1 PSL
peter.king@LIGO.ORG - posted 08:44, Monday 07 December 2015 (24020)
reference cavity transmission
/* waffle, random thoughts & meanderings below */

Plots of the reference cavity and pre-modecleaner transmission for the past day.
slope of reference cavity transmission 0.27 mW/day
slope of pre-modecleaner transmission 110 mW/day

slope of QPDY 0.002 microns/day
slope of QPDX 0.003 microns/day

We should crunch some numbers to see if this is consistent with the beam change
out of the pre-modecleaner,  The laser output power actually fell over the same
time interval.  The diffraction average has decreased to suit.

Comparison of the cavity spots over the past week can be seen in AlignmentShift.gif.
Images attached to this report
LHO General
corey.gray@LIGO.ORG - posted 08:28, Monday 07 December 2015 (24023)
Transition to DAY Shift Update

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

STATE of H1:  DOWN & HAM2/3 ISIs with Guardian issues being looked at.

Outgoing Operator:  Patrick

Quick Summary:  useism still elevated (LVEA at 1um/s, but might be trending down slightly if you squint at it).  The earthquake band (0.03-0.1Hz  band looks like it's finally returned to normal levels at about 14:00utc (6amPST).  Hugh is working on HAM2/3 ISI recovery.  

IFO has been down for 20+hrs.

H1 CDS (DAQ)
david.barker@LIGO.ORG - posted 08:23, Monday 07 December 2015 (24022)
CDS model and DAQ restart report, Sunday 6th December 2015

O1 day 80

model restarts logged for Sun 06/Dec/2015 No restarts reported

LHO General
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
LHO General
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
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.
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
Displaying reports 59741-59760 of 83132.Go to page Start 2984 2985 2986 2987 2988 2989 2990 2991 2992 End