Displaying reports 35961-35980 of 89220.Go to page Start 1795 1796 1797 1798 1799 1800 1801 1802 1803 End
Reports until 09:30, Monday 03 February 2020
H1 SQZ
sheila.dwyer@LIGO.ORG - posted 09:30, Monday 03 February 2020 (54864)
squeezer green ISS oscillation over the weekend

Yesterday during Niko's shift the squeezer caused some range drops: 54855

The attached trends suggest that there could be a problem with the green intensity stabilization.  The SHG power and PZT drive signals (middle row in the attachment) do not seem to have any behavoir changes associated with the range drops.  The green ISS attempts to keeo the OPO_TRANS channel stablized, you can see that this is oscillating at the times of the range drops, and that the power launched into the green fiber is increased.  (SHG-LAUNCH_DC).  

One explanation for this new behavoir could be that I increased the power to the squeezer on Thursday, 54822.  This was done using the picomotor, so that the ISS control signal isn't any closer to saturation than it was before the change.  I can go to the floor to measure the OLG of this loop in the maintence window tomorow, or earlier if we have an oppurtunity or if the behavoir gets worse. 

Images attached to this report
H1 General
yannick.lecoeuche@LIGO.ORG - posted 08:05, Monday 03 February 2020 (54863)
Ops Day Shift Transition

Ops Shift Transition: 02/03/2020, Day Shift 16:00–00:00 (08:00-16:00) - UTC (PT)

State of H1: Locked

Intent Bit: Observing

Weather: 0-10 mph wind

Primary 0.03 – 0.1Hz: 0.01 um/s

Secondary 0.1 – 0.3Hz: 0.3 um/s

Outgoing Operator: Jeff

Quick Summary: Locked for 51 hours, steady wind and microseism. X arm in the process of being cleared.

H1 General
jeffrey.bartlett@LIGO.ORG - posted 08:02, Monday 03 February 2020 (54862)
Ope Owl Shift Summary
Ops Shift Log: 02/03/2020, Evening Shift 08:00 – 16:00 (00:00 - 08:00) Time - UTC (PT)
State of H1: Locked at NLN with a 118.3Mpc range
Intent Bit: Observing
Support: N/A
Incoming Operator: Niko
Shift Summary: IFO and been locked and observing for the entire shift. The lock clock is sitting at 51 hours. The FMC crew are clearing tumbleweeds along the X-Arm. No other problems at this time.
 
Activity Log: Time - UTC (PT)
08:00 (00:00) Take over from Patrick
15:04 (07:04) FMC – Tumbleweed survey of the arms
15:47 (07:47) FMC – Clearing tumbleweeds along the X-Arm & may clear the Mid-Y chicane
16:00 (08:00) Turn over to Niko
H1 PSL (AOS, SUS)
jeffrey.bartlett@LIGO.ORG - posted 07:35, Monday 03 February 2020 (54861)
7 Day Optical Lever Trends (FAMIS #11255)
   Posted below are the 7 day OpLev trends. 

   Pitch - ETMY is right on the 10urad line. ITMX is right on the -10urad line, approaching from below. The rest of the pitch plots look OK. 
   Yaw - ITMX has been dropping for the past 2 days and is approaching the -10urad line. The remaining yaw plots look OK.
   Sum - The BS is showing a two day drop of almost 1200 counts. There has been some movement in the ITMX and PR3 OpLev Sum plots, but nothing too radical. 

Closing FAMIS #11255  
Images attached to this report
H1 General
jeffrey.bartlett@LIGO.ORG - posted 04:18, Monday 03 February 2020 (54860)
Ops Owl Mid-Shift Summery
   All's well for the first half of the shift. Environmental conditions remain good. No problems to report. 
H1 General
jeffrey.bartlett@LIGO.ORG - posted 00:08, Monday 03 February 2020 (54859)
Ops Owl Shift Transition
Ops Shift Transition: 02/03/2020, Owl Shift 08:00 – 16:00 (00:00 -08:00) - UTC (PT)
State of H1: Locked at NLN, Range 119.5Mpc
Intent Bit: Observing
Weather:  Skies are clear. The winds are Calm. Temperatures are in the upper 20s.       
Primary 0.03 – 0.1Hz: 0.01um/s
Secondary 0.1 – 0.3Hz: 0.3um/s
Outgoing Operator: Patrick
Quick Summary: The IFO has been locked for 43 hours. No issues or problems to report.
LHO General
patrick.thomas@LIGO.ORG - posted 23:56, Sunday 02 February 2020 (54858)
Ops Eve Shift Summary
TITLE: 02/02 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 119Mpc
INCOMING OPERATOR: Jeff
SHIFT SUMMARY: Remained locked and in observing the entire shift. Two GRB notifications.
LOG:

03:18 UTC GRB-Short E362108
Set INJ_TRANS to INJECT_KILL
Fermi
Trigger ID	602392636
TRIGGER_DUR:     0.064 [sec]
Stand Down

03:45 UTC GRB-Short E362110
Fermi
Trigger ID	602394248
TRIGGER_DUR:     0.032 [sec]
Stand Down

07:51 UTC Set INJ_TRANS back to INJECT_SUCCESS
LHO General
patrick.thomas@LIGO.ORG - posted 20:06, Sunday 02 February 2020 (54857)
Ops Eve Mid Shift Status
Have remained locked and in observing. Two GRB notifications. No issues.
LHO General
patrick.thomas@LIGO.ORG - posted 16:20, Sunday 02 February 2020 (54856)
Ops Eve Shift Start
TITLE: 02/02 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 118Mpc
OUTGOING OPERATOR: Niko
CURRENT ENVIRONMENT:
    SEI_CONF state: WINDY
    Wind: 5mph Gusts, 4mph 5min avg
    Primary useism: 0.03 μm/s
    Secondary useism: 0.37 μm/s 
QUICK SUMMARY: No issues.
H1 General
yannick.lecoeuche@LIGO.ORG - posted 16:03, Sunday 02 February 2020 (54855)
Shift Summary - Day

TITLE: 02/02 Day Shift 16:00 – 00:00 (08:00-16:00), all times posted in UTC

STATE of H1: Observing

INCOMING OPERATOR: Patrick

SHIFT SUMMARY: Locked for 34 hours, aside from problems with the squeezer it’s been a quiet shift.

LOG: 

18:32 (10:32) Out of Observing, SQZ unlocked and appears to be stalled. Taking to down and back up

18:36 (10:36) SQZ is locked, range is back up. Going to Observing

20:49 (12:49) There has been another decline in range, likely due to the squeezer again

21:32 (13:32) GRB E362082 -- standing down

H1 General
edmond.merilh@LIGO.ORG - posted 08:09, Sunday 02 February 2020 (54853)
Shift Summary - Owl

TITLE: 02/02 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 111Mpc
INCOMING OPERATOR: Niko
SHIFT SUMMARY:

LOG:

15:59 GRB Short - FERMI E362055

H1 General
yannick.lecoeuche@LIGO.ORG - posted 08:08, Sunday 02 February 2020 (54854)
Ops Day Shift Transition

Ops Shift Transition: 02/02/2020, Day Shift 16:00–00:00 (08:00-16:00) - UTC (PT)

State of H1: Locked

Intent Bit: Observing

Weather: 0-10 mph wind

Primary 0.03 – 0.1Hz: 0.01 um/s

Secondary 0.1 – 0.3Hz: 0.3 um/s

Outgoing Operator: Ed

Quick Summary: Locked for 27 hours. Range seems to have dropped gradually over the last four hours, not sure as to why (118->108 Mpc, no significant increase in wind or microseism from the last 12 hours).

H1 General
edmond.merilh@LIGO.ORG - posted 00:02, Sunday 02 February 2020 (54851)
Shift Transition - Owl

TITLE: 02/02 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 119Mpc
OUTGOING OPERATOR: Patrick
CURRENT ENVIRONMENT:
    SEI_CONF state: WINDY
    Wind: 13mph Gusts, 9mph 5min avg
    Primary useism: 0.04 μm/s
    Secondary useism: 0.41 μm/s
QUICK SUMMARY:

LHO General
patrick.thomas@LIGO.ORG - posted 23:59, Saturday 01 February 2020 (54852)
Ops Eve Shift Summary
TITLE: 02/01 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 119Mpc
INCOMING OPERATOR: Ed
SHIFT SUMMARY: Remained locked and in observing the entire shift. Rode through a 5.8 magnitude earthquake in Guatemala.
LOG:

03:37 UTC Changed SEI_CONF from WINDY to EARTH_QUAKE for a magnitude 5.8 earthquake in Guatemala
04:27 UTC Changed SEI_CONF back to WINDY
LHO General
patrick.thomas@LIGO.ORG - posted 20:02, Saturday 01 February 2020 (54850)
Ops Eve Mid Shift Status
Have remained locked and in observing. Currently riding out a magnitude 5.8 earthquake in Guatemala with SEI_CONF in EARTH_QUAKE mode.
LHO General
patrick.thomas@LIGO.ORG - posted 16:04, Saturday 01 February 2020 (54849)
Ops Eve Shift Start
TITLE: 02/01 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 119Mpc
OUTGOING OPERATOR: Jim
CURRENT ENVIRONMENT:
    SEI_CONF state: WINDY
    Wind: 22mph Gusts, 16mph 5min avg
    Primary useism: 0.05 μm/s
    Secondary useism: 0.37 μm/s 
QUICK SUMMARY: Winds remain high.
H1 General
jim.warner@LIGO.ORG - posted 15:58, Saturday 01 February 2020 (54848)
Shift Summary

TITLE: 02/01 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 117Mpc
INCOMING OPERATOR: Patrick
SHIFT SUMMARY: Windy, but uneventful
LOG:
Winds were high, but we stayed locked. Range was affected, but only got too bad when winds were >40 mph or so.

H1 General
jim.warner@LIGO.ORG - posted 12:03, Saturday 01 February 2020 (54847)
Winds high, range is taking a beating, but still locked

Range is down to around 100 MPC, but still locked.

Images attached to this report
H1 General
edmond.merilh@LIGO.ORG - posted 07:56, Saturday 01 February 2020 (54846)
Shift Summary - Owl

TITLE: 02/01 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 118Mpc
INCOMING OPERATOR: Jim
SHIFT SUMMARY:

Nothing further to report.

Handing off to Jim
LOG:

H1 General
edmond.merilh@LIGO.ORG - posted 05:00, Saturday 01 February 2020 - last comment - 05:58, Saturday 01 February 2020(54843)
H1 back to Observing 12:59UTC
Comments related to this report
edmond.merilh@LIGO.ORG - 05:12, Saturday 01 February 2020 (54844)

SDF DIFFS were noted and accepted (see images below)

  • H1 doesn't seem to be operating at nominal performance. At NLN, peak range was 113Mpc. It has since been hovering between 100 ad 110 as of present.
Images attached to this comment
edmond.merilh@LIGO.ORG - 05:58, Saturday 01 February 2020 (54845)

13:57 H1 seems to have adjusted back to more nominal range ~118 Mpc

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