Displaying reports 1-20 of 50527.Go to page 1 2 3 4 5 6 7 8 9 10 End
Reports until 20:40, Saturday 21 September 2019
LHO General
corey.gray@LIGO.ORG - posted 20:40, Saturday 21 September 2019 (52062)
Mid Shift Status

Had a small EQ (which turned out to be nothing) roll through, but other than that, it's been smooth sailing for H1 this evening with almost 20.5hrs of lock/observing.

LHO General (SQZ)
corey.gray@LIGO.ORG - posted 16:33, Saturday 21 September 2019 (52060)
Transition to EVE Log

TITLE: 09/21 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 19Mpc
OUTGOING OPERATOR: Patrick
CURRENT ENVIRONMENT:
    SEI_CONF state: WINDY
    Wind: 11mph Gusts, 9mph 5min avg
    Primary useism: 0.03 μm/s
    Secondary useism: 0.32 μm/s

Microseism is making a slight downward trend after its step up 22hrs ago.
QUICK SUMMARY:

LHO General
patrick.thomas@LIGO.ORG - posted 16:06, Saturday 21 September 2019 (52059)
Ops Day Shift Summary
TITLE: 09/21 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 109Mpc
INCOMING OPERATOR: Corey
SHIFT SUMMARY: Remained locked and observing entire shift. No issues. Bee keeper came to take hives.
LOG:

15:42 UTC SEI_CONF to WINDY
16:37 UTC Bee keeper through gate to retrieve bee hives
16:46 UTC GRB-Short (E351160) 590777160 TRIGGER_DUR:     1.024 [sec] Stand down
16:52 UTC Set INJ_TRANS to INJECT_KILL
17:31 UTC Ethan to optics lab
17:32 UTC Set INJ_TRANS to INJECT_SUCCESS
20:00 UTC SEI_CONF to EARTH_QUAKE for eq from Timor-Leste
21:37 UTC SEI_CONF to WINDY
LHO General
patrick.thomas@LIGO.ORG - posted 12:12, Saturday 21 September 2019 (52057)
Ops Day Mid Shift Status
Have remained locked and in observing. No issues.
H1 General
yannick.lecoeuche@LIGO.ORG - posted 08:10, Saturday 21 September 2019 (52055)
Shift Summary - Owl

TITLE: 09/21 Owl Shift 07:00 – 15:00 (00:00-08:00), all times posted in UTC

STATE of H1: Observing

INCOMING OPERATOR: Patrick

SHIFT SUMMARY: Quiet shift, 5.6 EQ from Albania is currently underway. EQ mode with high microseism seems to cause some large ASC oscillations.

LOG:

07:00 (00:00) Start of shift

07:17 (00:17) Locked at NLN, going into Observing (no sdf diffs)

13:16 (06:16) Kyle to mechanical shop/mid-stations -- adjust bake temperature/loosen bolts

13:45 (06:45) Kyle back from mid-stations

14:29 (07:29) Switching to EQ mode for 5.6 EQ in Albania.

15:00 (08:00) End of shift

LHO General
patrick.thomas@LIGO.ORG - posted 08:03, Saturday 21 September 2019 (52054)
Ops Day Shift Transition
TITLE: 09/21 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 112Mpc
OUTGOING OPERATOR: Niko
CURRENT ENVIRONMENT:
    SEI_CONF state: EARTH_QUAKE
    Wind: 4mph Gusts, 2mph 5min avg
    Primary useism: 0.49 μm/s
    Secondary useism: 0.38 μm/s 
QUICK SUMMARY: Riding through eq in Albania.
LHO General (SQZ)
corey.gray@LIGO.ORG - posted 00:13, Saturday 21 September 2019 - last comment - 14:45, Saturday 21 September 2019(52044)
EVE Operator Summary

TITLE: 09/20 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 111Mpc
INCOMING OPERATOR: Niko
SHIFT SUMMARY:

H1 was locked 49hrs before EY had a timing glitch which ended the lock.

Noticed "green power stabilization railed" message for the SQZ Manager.  This is a known issue for the last week & Sheila mentioned operators should ignore this message.
LOG:

Comments related to this report
keith.thorne@LIGO.ORG - 14:45, Saturday 21 September 2019 (52058)
There is an Integration Issue (FRS 12728 ) to deal with the high DAC outputs during reboots on SEI, ISC front-ends.  A prototype solution exists and we plan to demonstrate/install one at an LLO End Station during the October vent break.  At the corner station, it is possible to do this manually but does take some training.  We will also be testing whether the new I/O chassis design will resolve this or not.
H1 General
yannick.lecoeuche@LIGO.ORG - posted 00:05, Saturday 21 September 2019 (52053)
Ops OWL Shift Transition

Ops Shift Transition: 09/21/2019, Owl Shift 07:00 – 15:00 (00:00-08:00) - UTC (PT)

State of H1: Locking

Intent Bit: Commissioning

Weather: 0-5 mph wind

Primary 0.03 – 0.1Hz: 0.01 um/s

Secondary 0.1 – 0.3Hz: 0.3 um/s

Outgoing Operator: Corey

Quick Summary: Locking after EY timing error. At ENGAGE_SOFT_LOOPS.

H1 SEI (SEI)
corey.gray@LIGO.ORG - posted 23:10, Friday 20 September 2019 (52052)
SEI_ETMY Trouble Getting Back to FULLY_ISOLATED

After Dave's recovery from the Timing Glitch at EY, brought back all the SUS & SEI subsystems, except for SEI_ETMY---it would trip ST 1 & 2 watchdogs when trying to isolate.  I ended up texting Hugh/Jim; Jim walked me through what I should do since I was having issues.  Here are Jim's instructions I followed:

H1 CDS
david.barker@LIGO.ORG - posted 21:33, Friday 20 September 2019 - last comment - 11:00, Saturday 21 September 2019(52049)
EY timing glitch

We have had a timing at EY, which in turn caused a Dolphin glitch stopping the SUS, SEI and ISC models.

Dmesg on all three machines shows ADC timeouts. All IO Chassis are visible, so it looks like we just need to restart all the models.

Images attached to this report
Comments related to this report
david.barker@LIGO.ORG - 21:42, Friday 20 September 2019 (52050)

I've opened FRS13623

david.barker@LIGO.ORG - 21:49, Friday 20 September 2019 (52051)

To document the system before I started recovery, I captured all the front end system and Dolphin logs.

I then restarted the models in the order h1susey, h1seiey, h1iscey.

Finally did a global DIAG_RESET and cleared the DAQ CRC errors. All looks nominal.

david.barker@LIGO.ORG - 11:00, Saturday 21 September 2019 (52056)

I've added front end log details to the FRS (they suggest a gradual degradation of EY over a period of 8 minutes, initiated by h1seiey). I've marked the ticket with 3 hours observation time lost, and closed it as resolved (restarting models restored H1).

At the moment there is no obvious cause for the glitch, there was no EY activity at the time.

H1 CDS
corey.gray@LIGO.ORG - posted 21:31, Friday 20 September 2019 (52048)
EY Crashes With Several Frontends Going Down: h1iscey, h1susetmy, h1sustmsy, h1hpietmy, h1caley

After 49+hrs of lock, H1 went DOWN with what appears to be an issue at EY (see frontends noted in Title & screenshot of Ops & CDS overview).

Images attached to this report
LHO General
corey.gray@LIGO.ORG - posted 19:52, Friday 20 September 2019 (52047)
Mid Shift Status

Over 47.5 hrs of lock for H1, and with a quiet night which keeps getting quiet as the winds die down.

LHO VE
kyle.ryan@LIGO.ORG - posted 17:06, Friday 20 September 2019 (52046)
1441 hrs. local -> pumps started in mechanical room will run for a week or so - see WP #8359

HAM6 RGA assembly -> to be installed during HAM6 vent in October

Images attached to this report
H1 SQZ (SQZ)
sheila.dwyer@LIGO.ORG - posted 16:43, Friday 20 September 2019 (52045)
squeezer green power

Sheila, Daniel, Corey

Corey pointed out that the squeezer manager is giving a warning about the green power stabilization being railed.  Over the last week Daniel and I have bumped up the green power (using the half wave plate) a couple of times, so that we are now using 24.3mW of power into the green fiber.

The transmitted power through the OPO is servo'd, so the launched power is increased to compensate.  The OPO reflected power has also been increasing, which would suggest that the mode matching or alignment into the OPO has increased, or that the losses are changed. 

For now the operators can ignore the message about the green power stabilization, we may want to lower the green power setting for the OPO for the next week.  Daniel is planning to look at a mode scan of the OPO on Tuesday to see if there is evidence that the mode matching or alignment has degraded.

Images attached to this report
LHO General
corey.gray@LIGO.ORG - posted 16:15, Friday 20 September 2019 (52043)
Transition to EVE Log

TITLE: 09/20 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 113Mpc
OUTGOING OPERATOR: Patrick
CURRENT ENVIRONMENT:
    SEI_CONF state: WINDY
    Wind: 19mph Gusts, 16mph 5min avg
    Primary useism: 0.03 μm/s
    Secondary useism: 0.18 μm/s

All looks fine & good seismically and wind-wise.
QUICK SUMMARY:

H1 made it back to Observing in the last hour and continues with a ~44hr lock (!).

LHO General
patrick.thomas@LIGO.ORG - posted 16:12, Friday 20 September 2019 (52042)
Ops Day Shift Summary
TITLE: 09/20 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 110Mpc
INCOMING OPERATOR: Corey
SHIFT SUMMARY: Remained locked entire shift. Dropped out of observing a couple of times for PEM injections and measurements.
LOG:

15:03 - 15:16 UTC Niko to optics lab
H0:FMC-MX_AH_COOLTEMP_2_DEGF invalid alarm
16:09 UTC H0:FMC-MX_AH_COOLTEMP_1_DEGF invalid alarm
H0:FMC-MX_AH_DSCHRG_DEGF invalid alarm
17:20 - 18:25 UTC Dropped out of observing for PEM injections. Robert and team to LVEA.
17:30 - 18:03 UTC Tyler moving bee nest with forklift
18:01 - 18:20 UTC Chandra to mid X
18:56 UTC Dripta to optics lab
19:07 UTC Ethan to optics lab
19:30 UTC Ethan and Dripta out of optics lab
20:20 - 20:33 UTC Gerardo to mid X
21:04 UTC Switched to commissioning for Sheila to run measurements
21:34 - 21:55 UTC Robert and team to LVEA to set up accelerometers
22:26 UTC Robert to LVEA
22:31 - 22:57 UTC Kyle to mid stations
22:32 UTC Back to observing
22:52 - 23:02 UTC Dripta to optics lab
Displaying reports 1-20 of 50527.Go to page 1 2 3 4 5 6 7 8 9 10 End