Displaying reports 18161-18180 of 88681.Go to page Start 905 906 907 908 909 910 911 912 913 End
Reports until 16:11, Sunday 03 September 2023
H1 General
oli.patane@LIGO.ORG - posted 16:11, Sunday 03 September 2023 (72652)
Ops EVE Shift Start

TITLE: 09/03 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 148Mpc
OUTGOING OPERATOR: Tony
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 19mph Gusts, 15mph 5min avg
    Primary useism: 0.04 μm/s
    Secondary useism: 0.19 μm/s
QUICK SUMMARY:

Detector in Observing and has been Locked for 12hrs 35mins.

LHO VE
david.barker@LIGO.ORG - posted 10:11, Sunday 03 September 2023 (72650)
Sun CP1 Fill

Sun Sep 03 10:07:14 2023 INFO: Fill completed in 7min 10secs

Images attached to this report
H1 General
anthony.sanchez@LIGO.ORG - posted 08:06, Sunday 03 September 2023 (72649)
Sunday Ops Day Shift Start

TITLE: 09/03 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 145Mpc
OUTGOING OPERATOR: Austin
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 20mph Gusts, 17mph 5min avg
    Primary useism: 0.03 μm/s
    Secondary useism: 0.22 μm/s
QUICK SUMMARY:
Wind Is elevated
PSL Dust mon 101 alarming when I walked in.
Inherited and Interferometer that has been locked for 4.5 hours.

H1 General
oli.patane@LIGO.ORG - posted 00:16, Sunday 03 September 2023 (72648)
Ops EVE Shift End

TITLE: 09/03 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 145Mpc
INCOMING OPERATOR: Austin
SHIFT SUMMARY: We have now been Locked for 4hrs 50mins. There were two locklosses from NLN during my shift, but both times locking back up was fast and hands-off. I could not find a cause for either of them.

The code changes made earlier today(72636) for mode24 seem to be working well, and there was only one time (that I saw at least) where the phase was cycled through fully, and mode24 didn't get above ~15.

Just before posting this, I heard the building creak and the wind speed at all buildings jumped up really high!

23:00UTC Detector in Observing and Locked for 1 hour

23:48 Lockloss from NLN (72644)
23:50 Lockloss from LOCKING_ALS

00:17 GRB-Short alert E434681 - Fermi, NOT_GRB

00:34 Reached NOMINAL_LOW_NOISE
00:47 Into Observing

01:28 Lockloss (72646)
02:18 NOMINAL_LOW_NOISE
02:30 Observing

04:30 Optics lab dustmon jumped up from 0 to 4300 counts for 10mins, and then back down to 0. Lines up with a temporary increase in wind at the corner station.

LOG:

no log

Images attached to this report
H1 General (Lockloss)
oli.patane@LIGO.ORG - posted 18:30, Saturday 02 September 2023 - last comment - 19:30, Saturday 02 September 2023(72646)
Lockloss

09/03 1:28UTC Another Lockloss from NLN just 54 minutes after having reached NLN :(

Comments related to this report
oli.patane@LIGO.ORG - 19:30, Saturday 02 September 2023 (72647)

02:30UTC Observing again!

H1 General (Lockloss)
oli.patane@LIGO.ORG - posted 16:52, Saturday 02 September 2023 - last comment - 17:48, Saturday 02 September 2023(72644)
Lockloss

Lockloss @ 23:48UTC

Comments related to this report
oli.patane@LIGO.ORG - 17:48, Saturday 02 September 2023 (72645)

00:47UTC Back to Observing

H1 General
oli.patane@LIGO.ORG - posted 16:10, Saturday 02 September 2023 (72643)
Ops EVE Shift Start

TITLE: 09/02 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 147Mpc
OUTGOING OPERATOR: Tony
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 5mph Gusts, 4mph 5min avg
    Primary useism: 0.03 μm/s
    Secondary useism: 0.19 μm/s
QUICK SUMMARY:

Taking over from Tony, we've been Locked for just over an hour and are currently Observing. Winds are low.

H1 General
anthony.sanchez@LIGO.ORG - posted 16:06, Saturday 02 September 2023 (72642)
Satudat Ops Day Shift End

TITLE: 09/02 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 143Mpc
INCOMING OPERATOR: Oli
SHIFT SUMMARY:
LOG:


Stand Down request went away.
16:00-Ish UTC  PI 24 was ringing up again, and it had rung its self up 3 times. on the 4th time
I changed H1:SUS-PI_PROC_COMPUTE_MODE24_PLL_PHASE to a value that would work WITHOUT changing the state of the PI Guardian which allowed me to stay in OBSERVING the entire time.


PI Guardian Needs to be reloaded After Naoki's Changes.
Lockloss 20:45 UTC
PI Guardian was reloaded.
Initial Alignment Not run before locking. But this lock did go through Check Mich fringes.
Observing Reached @ 22:09

LOG:                                                                                                          

Start Time System Name Location Lazer_Haz Task Time End
18:42 FAC Tyler Mech Rm N Draining the Air Handler Condensation 19:12
H1 General (Lockloss)
anthony.sanchez@LIGO.ORG - posted 15:21, Saturday 02 September 2023 (72641)
Lockloss 1377722766

Lockloss https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1377722766
Ground Motion, wind, and PI's can be ruled out. But otherwise unknown Lockloss.
 

Images attached to this report
H1 SEI
anthony.sanchez@LIGO.ORG - posted 13:18, Saturday 02 September 2023 (72639)
SEI ground seismometer mass position check FAMIS 26481

Famis 26481

Check_T240_Centering.py:
ITMX T240 2 DOF X/U = 0.11 [V]
ITMX T240 2 DOF Y/V = 0.197 [V]
ITMX T240 2 DOF Z/W = 0.196 [V]
ITMX T240 3 DOF Y/V = 0.115 [V]
ITMX T240 3 DOF Z/W = 0.137 [V]
ITMY T240 1 DOF X/U = 0.048 [V]
ITMY T240 1 DOF Y/V = 0.011 [V]
ITMY T240 1 DOF Z/W = -0.129 [V]
ITMY T240 2 DOF X/U = 0.082 [V]
ITMY T240 2 DOF Y/V = 0.134 [V]
ITMY T240 2 DOF Z/W = -0.019 [V]
ITMY T240 3 DOF Y/V = 0.009 [V]
BS T240 1 DOF X/U = -0.221 [V]
BS T240 1 DOF Z/W = 0.013 [V]
BS T240 2 DOF X/U = -0.163 [V]
BS T240 2 DOF Y/V = -0.063 [V]
BS T240 2 DOF Z/W = -0.218 [V]
BS T240 3 DOF X/U = -0.272 [V]
HAM8 1 DOF X/U = -0.198 [V]
HAM8 1 DOF Y/V = -0.19 [V]


Assessment complete.


check_sts_centering.py:

STS EY DOF Z/W = 2.596 [V]


All other proof masses are within range ( < 2.0 [V] ):
STS A DOF X/U = -0.572 [V]
STS A DOF Y/V = -0.811 [V]
STS A DOF Z/W = -0.548 [V]
STS B DOF X/U = 0.527 [V]
STS B DOF Y/V = 0.91 [V]
STS B DOF Z/W = -0.591 [V]
STS C DOF X/U = -0.366 [V]
STS C DOF Y/V = 0.826 [V]
STS C DOF Z/W = 0.206 [V]
STS EX DOF X/U = -0.187 [V]
STS EX DOF Y/V = 0.055 [V]
STS EX DOF Z/W = 0.066 [V]
STS EY DOF Y/V = 0.109 [V]
STS FC DOF X/U = 0.378 [V]
STS FC DOF Y/V = -0.786 [V]
STS FC DOF Z/W = 0.744 [V]


Assessment complete.

H1 General (Lockloss)
anthony.sanchez@LIGO.ORG - posted 10:26, Saturday 02 September 2023 - last comment - 13:46, Saturday 02 September 2023(72636)
Owl Shift Lockloss Investigations

LockLoss :
https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1377686651

I just happend to see the PI's ring up this morning durning my shift and started to trend them back to see just how high PI 24 can go with out us losing lock. While just goofing off I discovered that just last night, literally the last lockloss, PI 24 had run up from 20 to 2213.5 and caused a lockloss in under 12 minutes. screenshot included. The cursor T1 cursor is set at the point were PI 24 reaches 20. T2 cursor is set to GPS Time 1377686651 which is the Lockloss timestamp. 

Images attached to this report
Comments related to this report
anthony.sanchez@LIGO.ORG - 11:29, Saturday 02 September 2023 (72638)

PI FOM plots over the time LockLoss time. Top plot is log scaled.

Images attached to this comment
naoki.aritomi@LIGO.ORG - 13:46, Saturday 02 September 2023 (72640)

We think that the PI guardian did not have enough time to evaluate the correct damping phase for mode 24 (10.431 kHz PI) so we updated the PI guardian as we did in alog69800. We increased the phase step from 30 to 60 deg, the average time to calculate the new rms from 1 to 5s, and the timer for each step from 5 to 10s. The PI guardian is not reloaded yet and we asked the operator to reload it when lockloss happens.

LHO VE
david.barker@LIGO.ORG - posted 10:10, Saturday 02 September 2023 (72637)
Sat CP1 Fill

Sat Sep 02 10:07:32 2023 INFO: Fill completed in 7min 28secs

Images attached to this report
H1 General
anthony.sanchez@LIGO.ORG - posted 08:01, Saturday 02 September 2023 (72635)
Saturday OPS Day Shift Start

TITLE: 09/02 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 148Mpc
OUTGOING OPERATOR: Austin
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 4mph Gusts, 3mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.22 μm/s
QUICK SUMMARY:
Inheirited an Interferometer that has been locked and Observing for 3 hours.
GRB-Short E434553 Candidate had a Stand Down Request active when I walked in.

H1 General
oli.patane@LIGO.ORG - posted 00:04, Saturday 02 September 2023 (72633)
Ops EVE Shift End

TITLE: 09/02 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 143Mpc
INCOMING OPERATOR: Austin
SHIFT SUMMARY: We are still Observing and have now been Locked for 10 hours. A few minutes ago we got a GRB-Short alert and a Stand Down (Fermi, labeled as NOT_GRB).

The top FOM on nuc26 disconnected from the port for ~30 seconds saying that nothing was connected, before turning back on by itself. Later on in the evening the top FOM of nuc5 also lost contact with its computer for a few seconds before coming back on its own.


23:00UTC In Observing and detector has been Locked for 2hrs 4mins

06:55 GRB-Short on Verbals and Stand Down on lock clock


LOG:

no log

LHO FMCS (PEM)
oli.patane@LIGO.ORG - posted 23:21, Friday 01 September 2023 (72632)
HVAC Fan Vibrometer Check

Closes FAMIS#26248, last checked 72443

Corner Station Fans (attachment1)

All fans are looking good with no concerns, with MR_FAN5_2 being very variable in noise level (as it usually is), and MR_FAN5_1 being the loudest at just below 0.4.

Outbuilding Fans (attachment2)

All fans are looking good and are well below any noise level that would be of concern to us.

Notes:

- Monday night, 08/29 at 6:13UTC, EX_Fan1 turned off for a minute before a power glitch(coincidence??) turned it back on (attachment3).

- 09/01 16:39UTC, something similar happened with EY_FAN2 (attachment4), although this one is probably related to the work that Randy and Tyler were doing at EY around that time(72628)

Images attached to this report
H1 General
oli.patane@LIGO.ORG - posted 20:42, Friday 01 September 2023 (72631)
Ops EVE Midshift Update

We are still in Observing and have now been Locked for almost 7 hours.

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