Displaying reports 40261-40280 of 88908.Go to page Start 2010 2011 2012 2013 2014 2015 2016 2017 2018 End
Reports until 19:14, Sunday 23 June 2019
H1 General
corey.gray@LIGO.ORG - posted 19:14, Sunday 23 June 2019 - last comment - 20:09, Sunday 23 June 2019(50140)
Early Mid SUmmary: Rough Locking For H1 Continues

After the Initial Alignment, the outlook looked better with H1 making it all the way to DRMI on its own (no PRMI tweaks needed).  But it had multiple locklosses before OFFLOAD DRMI ASC.  

Did a small alignment tweak via PRMI & this got me a little further and even through a noisy stretch for the PR Gain & POP16 (see attached).

But overall, have not had much luck.  The winds have steadily been increasing (steady in the 20s & approaching gusts in 40s).  I am marking OBSERVATORY MODE  from Locking to WINDY.  

OH, and we also had some South Pacific quakes roll in, so I'm in the EARTHQUAKE state as well.

I'm going to wait out the EQ a little and then return to locking in a bit.

Images attached to this report
Comments related to this report
corey.gray@LIGO.ORG - 20:08, Sunday 23 June 2019 (50141)

And now a 7.3 EQ is inbound within the hour, & Seismon recommends LARGE_EQ state.  So this will prevent locking until it passes.

In the meantime, I'm returning to locking DRMI & trying to get past it with the high winds which have remainded steady over 20mph for the last 4-5hrs.  (Just had another DRMI lockloss.)

corey.gray@LIGO.ORG - 20:09, Sunday 23 June 2019 (50142)

And now a 7.3 EQ is inbound within the hour, & Seismon recommends LARGE_EQ state.  So this will prevent locking until it passes.

In the meantime, I'm returning to locking DRMI & trying to get past it with the high winds which have remainded steady over 20mph for the last 4-5hrs.  (Just had another DRMI lockloss.)

H1 General
corey.gray@LIGO.ORG - posted 17:42, Sunday 23 June 2019 - last comment - 20:16, Monday 24 June 2019(50139)
H1 Locking Issues: AlSx Polarization & DRMI Not Locking

Had a lockloss at 23:32utc (4:32pm PDT).  Nothing obvious, but it was windy.  Thought I would let H1 relock on its own, but it's been over an hour, and have tried various things, and am now going for an alignment (I've not done an alignment in several weeks!).

NOTES:

Images attached to this report
Comments related to this report
corey.gray@LIGO.ORG - 20:16, Monday 24 June 2019 (50158)

FRS:  13111

LHO General
corey.gray@LIGO.ORG - posted 16:16, Sunday 23 June 2019 (50137)
Transition to EVE Log

TITLE: 06/23 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 116Mpc
OUTGOING OPERATOR: Jim
CURRENT ENVIRONMENT:
    Wind: 21mph Gusts, 15mph 5min avg
    Primary useism: 0.10 μm/s
    Secondary useism: 0.09 μm/s

Seeing winds hovering in the 20mph range.  Other than wind, have somewhat calmed down after the earthquakes earlier in the day.
QUICK SUMMARY:

H1's been locked/observing around 16.25hrs and with a range just around ~114Mpc.

H1 General
jim.warner@LIGO.ORG - posted 16:09, Sunday 23 June 2019 (50136)
Shift Summary

TITLE: 06/23 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 113Mpc
INCOMING OPERATOR: Corey
SHIFT SUMMARY:
LOG:
There was a 4.1 eq off the coast of California at the end that got a verbal notification, but it wasn't big enough to need a change of modes.

H1 General
yannick.lecoeuche@LIGO.ORG - posted 08:00, Sunday 23 June 2019 (50135)
Shift Summary - Owl

TITLE: 06/23 Owl Shift 07:00 – 15:00 (00:00-08:00), all times posted in UTC

STATE of H1: Observing

INCOMING OPERATOR: Jim

SHIFT SUMMARY: Started shift with high wind and an incoming EQ, rode through it and soon everything was quiet. Observing for 8 hours.

LOG:

07:00 (00:00) Start of shift

07:38 (00:38) Switching to EQ mode for 5.7 from Tonga area

07:57 (00:57) Switching back to windy

11:03 (04:03) GRB (E339648). Trigger duration too long.

15:00 (08:00) End of shift

H1 General
yannick.lecoeuche@LIGO.ORG - posted 04:48, Sunday 23 June 2019 (50134)
Ops Mid-Shift Summary

Quiet shift so far, wind died down after about an hour, seismic activity has been low. Locked and Observing at ~117 Mpc.

H1 SEI (SEI)
travis.sadecki@LIGO.ORG - posted 01:31, Sunday 23 June 2019 (50132)
ISI ITMx and ITMy SDF diffs

Accepted ISI ITMx and ITMy SDF TRAMP diffs. See screenshot for ITMy diffs (ITMx were the same corresponding channels).

Images attached to this report
H1 General
yannick.lecoeuche@LIGO.ORG - posted 00:06, Sunday 23 June 2019 (50133)
Ops OWL Shift Transition

Ops Shift Transition: 06/23/2019, Owl Shift 07:00 – 15:00 (00:00-08:00) - UTC (PT)

State of H1: Locked

Intent Bit: Observing

Weather: 10-40 mph wind

Primary 0.03 – 0.1Hz: 0.02 um/s

Secondary 0.1 – 0.3Hz: 0.1 um/s

Outgoing Operator: Travis

Quick Summary: Travis had just reached NLN when I arrived. Wind is showing up strong in the ASC channels, and there’s an incoming earthquake, so we may not stay locked for long

H1 General
travis.sadecki@LIGO.ORG - posted 00:03, Sunday 23 June 2019 (50131)
Ops Eve Shift Summary

TITLE: 06/23 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 111 MPc.
INCOMING OPERATOR: Niko
SHIFT SUMMARY:   Just got back to Observing as Niko's shift starts.  Winds are still high 30s with gusts to over 40mph.
LOG:  Previous aLogs.

 

H1 GRD (GRD)
travis.sadecki@LIGO.ORG - posted 22:27, Saturday 22 June 2019 - last comment - 13:50, Tuesday 25 June 2019(50130)
INIT_ALIGN error

See screenshot for error midway up the log.  All I did was reload INIT_ALIGN guardian and it seemed to move on fine.  Maybe needs more investigation.

Images attached to this report
Comments related to this report
thomas.shaffer@LIGO.ORG - 13:00, Tuesday 25 June 2019 (50175)

This is a case of too many managers trying to both use ALIGN_IFO. I have commented out the unstall_nodes decorator in ISC_LOCK's inital_alignment state. The INIT_ALIGN node is already unstalling what it needs to, and INIT_ALIGN shouldn't need to be unstalled.

sheila.dwyer@LIGO.ORG - 13:35, Tuesday 25 June 2019 (50176)

Sorry about that.  I added that unstall nodes because we had seen the IMC guardian become stalled during Init align.  Does Align IFO manage the IMC and unstall it when it looses lock?

thomas.shaffer@LIGO.ORG - 13:50, Tuesday 25 June 2019 (50177)

Ah, no it doesn't. I'll change ISC_LOCK to check on that, and I'll triple check the other nodes.

H1 General
travis.sadecki@LIGO.ORG - posted 21:06, Saturday 22 June 2019 (50129)
Lockloss 3:55 UTC

Due to 5.9 EQ in Canada.  Lost lock before SEISMON reported the EQ due to proximity.  0.03-0.1 and 0.1-0.3 Hz FOM on the wall is currently off the chart.  Nearly all ISIs were tripped before I could transition to EQ mode.

Images attached to this report
H1 General (DetChar, SEI)
travis.sadecki@LIGO.ORG - posted 16:55, Saturday 22 June 2019 (50128)
Transitioned back to WINDY SEI state

EQ has rang down sufficiently.

H1 General
travis.sadecki@LIGO.ORG - posted 16:09, Saturday 22 June 2019 (50127)
Ops Eve Shift Transition

TITLE: 06/22 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 114Mpc
OUTGOING OPERATOR: Jim
CURRENT ENVIRONMENT:
    Wind: 16mph Gusts, 13mph 5min avg
    Primary useism: 0.26 μm/s
    Secondary useism: 0.09 μm/s
QUICK SUMMARY:  Still locked in Observing but riding through an EQ that took LLO down. 

H1 General (DetChar)
jim.warner@LIGO.ORG - posted 15:59, Saturday 22 June 2019 (50126)
Shift Summary

TITLE: 06/22 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 115Mpc
INCOMING OPERATOR: Travis
SHIFT SUMMARY: Nothing all day, then Guatemala starts shaking as Travis arrives
LOG:

22:51 Earthquake from Guatemala arrives, switching to SEI_CONF earthquake
 

H1 General
yannick.lecoeuche@LIGO.ORG - posted 08:08, Saturday 22 June 2019 (50124)
Shift Summary - Owl

TITLE: 06/22 Owl Shift 07:00 – 15:00 (00:00-08:00), all times posted in UTC

STATE of H1: Observing

INCOMING OPERATOR: Jim

SHIFT SUMMARY: Quiet night until a 5.4 EQ off the coast of Oregon knocked us out of lock. Got to Observing right before the shift ended.

LOG:

07:00 (00:00) Start of shift

08:50 (01:50) GRB (E336865). Trigger duration too long, no stand down.

11:44 (04:44) SQZ lost lock, taking us out of Observing

11:45 (04:45) Squeezing, back to Observing

12:49 (05:49) 5.0 EQ off the Oregon coast knocked us out of lock

14:07 (07:07) EQ’s have rung down, starting re-lock

14:54 (07:54) Locked, going into Observing

15:00 (08:00) End of shift

H1 General
yannick.lecoeuche@LIGO.ORG - posted 07:56, Saturday 22 June 2019 (50123)
Accepting SDF changes

Accepting the attached sdf changes to go into Observing

Images attached to this report
H1 General
yannick.lecoeuche@LIGO.ORG - posted 04:27, Saturday 22 June 2019 (50122)
Ops Mid-Shift Summary

Quiet shift so far. Wind is low, not much seismic activity. One GRB that did not meet standards for stand down.

H1 General
yannick.lecoeuche@LIGO.ORG - posted 00:01, Saturday 22 June 2019 (50121)
Ops OWL Shift Transition

Ops Shift Transition: 06/22/2019, Owl Shift 07:00 – 15:00 (00:00-08:00) - UTC (PT)

State of H1: Locked

Intent Bit: Observing

Weather: 0-10 mph wind, light rain

Primary 0.03 – 0.1Hz: 0.01 um/s

Secondary 0.1 – 0.3Hz: 0.1 um/s

Outgoing Operator: Travis

Quick Summary: Locked for 18.5 hours, observing for 8 hours. No known issues.

H1 General
travis.sadecki@LIGO.ORG - posted 00:00, Saturday 22 June 2019 (50120)
Ops Eve Shift Summary

TITLE: 06/22 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 117Mpc
INCOMING OPERATOR: Niko
SHIFT SUMMARY: In Observing for the entire shift.
LOG:  Nothing to report.

H1 IOO
daniel.sigg@LIGO.ORG - posted 14:00, Thursday 20 June 2019 - last comment - 09:19, Wednesday 26 June 2019(50099)
Frequency noise from the laser

Here are some MC_F spectra.

Non-image files attached to this report
Comments related to this report
daniel.sigg@LIGO.ORG - 10:16, Saturday 22 June 2019 (50125)

Modal analysis of the reference cavity can be found at the 40m wiki.

daniel.sigg@LIGO.ORG - 09:19, Wednesday 26 June 2019 (50207)

Here is the same spectrum with updated calibration. I neglected the 2 poles around 15kHz (Change 3 in E1900103).

The calibration for MC_F is:

  • Gain: 10V/2^15 (ADC) * 2 (double pass) * 260kHz/V (VCO at DC)
  • Poles: 1.6Hz (VCO), 10Hz, 10Hz (CM board whitening)
  • Zeroes: 40Hz (VCO), 100Hz, 100 Hz (whitening), 2 complex 7kHz ± i*7kHz  (Q=0.7), 10kHz (AA filter), 15kHz, 15kHz (CM board low pass)

In transmission of the IMC the cavity pole at 8.8kHz needs to be added.

Non-image files attached to this comment
Displaying reports 40261-40280 of 88908.Go to page Start 2010 2011 2012 2013 2014 2015 2016 2017 2018 End