Displaying reports 57661-57680 of 85746.Go to page Start 2880 2881 2882 2883 2884 2885 2886 2887 2888 End
Reports until 14:01, Thursday 04 August 2016
H1 ISC
daniel.sigg@LIGO.ORG - posted 14:01, Thursday 04 August 2016 (28870)
Missing RF and MCL readbacks

The following readbacks are missing:

H1 AOS (AOS, CAL)
sudarshan.karki@LIGO.ORG - posted 12:34, Thursday 04 August 2016 (28397)
High Frequency Pcal Lines Timestamp
The list of high frequency calibartion lines injected before and during ER9. These are not necessarily the times when IFO was locked but only the time when the particular excitations were on.

Frequency    Amplitude   Start Time      Stop Time       
(Hz)               (ct)                (UTC)             (UTC)       
--------------------------------------------------------------------
1000.3           35k         06-27 23:03    06-28 23:51         

1501.3          35k         06-29  00:16    07-01 04:48         

2001.3          35k         07-01 04:50     07-01 15:08         

2501.3          40k         07-01 15:20     07-05 19:04     
 
3001.3          39k         07-05 19:00     07-09 17:41            

3501.3          39k         07-09 18:32     end

Analysis to follow.

H1 SUS (CAL, ISC)
jeffrey.kissel@LIGO.ORG - posted 11:26, Thursday 04 August 2016 - last comment - 20:08, Thursday 04 August 2016(28869)
Charge Measurements Taken Yesterday (8/03); To be processed
J. Kissel

I was able to grab some charge measurements yesterday afternoon. Will process in good time. Only 4 and 3 of the data points for ETMX and ETMY were free of problems, so though there are 5 and 4 folders, I suspect only the first for will process correctly. Folders are quoted below lest we forget:

/ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ETMX/SAGL3/Data/
data_2016-08-03-19-47-12
data_2016-08-03-19-59-06
data_2016-08-03-20-10-54
data_2016-08-03-20-22-36
data_2016-08-03-20-34-21

/ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ETMY/SAGL3/Data/
data_2016-08-03-19-55-57
data_2016-08-03-20-07-41
data_2016-08-03-20-19-26
data_2016-08-03-20-31-11
Comments related to this report
jeffrey.kissel@LIGO.ORG - 20:08, Thursday 04 August 2016 (28884)
Charge measurements have been processed and/or retaken. See LHO aLOG 28881.
H1 General
cheryl.vorvick@LIGO.ORG - posted 09:01, Thursday 04 August 2016 (28867)
Ops Morning Update:

State of H1: new OMC is in HAM6 - needs further work, shutter is closed - no IMC, site activities taking advantage of the down time

Activities: all times UTC

15:00 - JeffB - new dust monitor, #7, sampling same volume as #6 - test of system and low dust counts

15:45 - Richard - WP6053 - EX and EY Low voltage ESD driver modifications

H1 PEM
jeffrey.bartlett@LIGO.ORG - posted 08:27, Thursday 04 August 2016 (28865)
Add New Dust Monitor at HAM6
   Added a new dust monitor at HAM6 for huddle testing. The new monitor (#7) is strapped to the back of the support stand for the existing monitor (#6). To the crew working around the NE corner of HAM6, please be aware of the new monitor. I have not adjusted the alarm levels. This monitor will be removed shortly after the HAM6 vent is finished.     
H1 ISC (SUS)
koji.arai@LIGO.ORG - posted 00:33, Thursday 04 August 2016 - last comment - 08:33, Thursday 04 August 2016(28862)
The new OMC installed on the OMC Suspension

[Betsy, Corey, Chris, Koji]

Summary

- A panel of the OMC black glass shroud with a burned spot was removed. LHO aLOG 28861

- The new OMC is now suspended in the OMC SUS

- We still need balancing work of the suspension

- Once the OMC breadboard is nicely balanced, the beam will be aligned.

- We'll performe the electrical function check.


Details

- The new OMC container was moved from the bonding lab to LVEA

- The weight of the old and new OMC was compared. All the balance masses were moved from the old OMC to the new OMC. Then to reduce the exess mass of the new OMC, 10g mass was removed from each ballast at the DCPD side. (10g+10g was removed.) This made the new OMC 2g lighter then the old one. Betsy keeps the actual numbers.

- The first contact films were removed at the chamber side. Some residuals were seen on non-cavity mirror optics. They were removed by another trial of the FC.

- Then the new OMC was installed on the OMC Suspension.

- The cabling of the OMC was restored.

- The locks of the suspension masses and the blades were released. Now the OMC Breadboad is freely suspended.

- The balance of the OMC breadboard was reviewed. One of the corner is about 1mm too high. As we already adjusted the total weight, this should be done by moving the ballast mass on the breadboard.

Comments related to this report
corey.gray@LIGO.ORG - 08:33, Thursday 04 August 2016 (28864)

Photos From Yesterday's HAM6 Work

All photos from yesterday's work are in resourcespace in a folder for 8/3's work here:

https://ligoimages.mit.edu/?c=1698

Attached are some highlight photos:

  1. Betsy & Koji removing First Contact from OMC optics
  2. Applying First Contact to remove particulate
  3. Close Up of First Contact
  4. Koji & Betsy (& Chris Whittle) During re-hanging of new OMC Breadboard
  5. Koji in action
  6. Betsy in action
Images attached to this comment
H1 AOS
jeffrey.kissel@LIGO.ORG - posted 17:36, Wednesday 03 August 2016 - last comment - 17:57, Wednesday 03 August 2016(28858)
H1SUSETMs Modified to Have Individual Coil Driver Switching; ITMs will be done tomorrow.
J. Kissel
ECR E1500045
FRS 6014
WP 6051

I've begun the roll out of individual state switch-ability for the PUM / L2 coil drivers. This is essentially complete for the ETMs (just a few more aesthetic MEDM screen changes are needed). I've confirmed all functionality behaves as expected. I've reconciled the SDF "down" snap before hand, and made sure that all settings were restored, including initializing/accepting the new EPICs records that come with this update.

Though the model changes have been made to the simulink model for the ITMs (because the ITMs and ETMs are using a generic L2 stage library part), they have not yet been compiled or installed, and MEDM screens have not been updated (because they now have separate MEDM infrastructure [see LHO aLOG 27641], generic changes to all QUADs like this takes twice as long). Stay tuned for more details and screenshot in tomorrow's "it's complete" aLOG.

Still to Do:
- Edit EUL2OSEM MEDM screens to support the ramping matrix on ETMs
- Compile / Install / Restart ITM models (with accompanying DAQ restart)
- Edit ITM QUAD OVERVIEW and BIO screens for all the same changes as I've done to the ETM QUAD overview
- commit everything to the SVN
- Make sure that the ISC_LOCK guardian hits the "LOAD MATRIX" button on the PUMs in the DOWN state.
- Integrate new "three wheel motion" coil driver switching into the ISC_LOCK guardian in the COIL_DRIVERS state
Images attached to this report
Comments related to this report
david.barker@LIGO.ORG - 17:57, Wednesday 03 August 2016 (28860)

We had a strange issue with the h1susetmx restart. The H1SUSETMX.ini file was changed at 17:08, h1susetmx was restarted at 17:10 and the DAQ was restarted at 17:12. Yet the DAQ status for h1susetmx ended up as 0x2000 (ini file check sum mismatch). A restart of h1susetmx fixed the problem. With so much time between restarts this does not look like a slow NFS file issue.

LHO VE
filiberto.clara@LIGO.ORG - posted 17:17, Wednesday 03 August 2016 - last comment - 10:48, Friday 05 August 2016(28857)
Y2-8 HV Ion Pump Cable Repaired

The HV power cable for the Y2-8 ion pump has been repaired. The damaged section was cut off, and the cable was spliced together. Cable was tested with the HI-POT tester to 5KV.

Comments related to this report
gerardo.moreno@LIGO.ORG - 17:23, Wednesday 03 August 2016 (28859)

Connected cable to controller and turned ion pump on.  Pump is pumping now, see attached for 3 hour trend data.

Images attached to this comment
chandra.romel@LIGO.ORG - 10:45, Thursday 04 August 2016 (28868)
Thank you!!
gerardo.moreno@LIGO.ORG - 10:48, Friday 05 August 2016 (28895)

Work done under WP #6047 and FRS ticket 5992 closed

H1 ISC
stefan.ballmer@LIGO.ORG - posted 16:47, Wednesday 03 August 2016 (28856)
ITMs still in distributed design (ETMs are offloaded)

I noticed (somewhat surprised) that we run the ITMs in distributed design (the ETMs are off-loaded). Unless someone remembers a good reason for this, I would recommend switching both to offloaded design. We require a balancing of ETM and ITM transfer function for the HARD/SOFT basis change, which is a bit of a nightmare if we run ETMs and ITMs in different modes.

This also means that by AS top stage offloading implementation (alog 28763) did not work for the ITMs since I relied on the signal flowing through the L1 filter banks. We will have to redo this.

H1 DAQ
jonathan.hanks@LIGO.ORG - posted 16:45, Wednesday 03 August 2016 (28855)
More on frame writer testing (splitting the producer thread)
As a follow up to (https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28749) we have a build of the framewriter on h1fw2 that splits the producer thread into two components.

Here is a sample timing:

producer thread timings
 recv min:0.0592079 mean:0.0624186 max:0.0642519
producer crc thread timings
 full min:0.0259149 mean:0.0270363 max:0.0351679
 crc  min:0.014359 mean:0.0144825 max:0.0150859
 xfer min:0.0115559 mean:0.0125535 max:0.0200801

The producer thread does nothing but receiving data.  Here we notice the time to receive is increased to the full 1/16s.  We believe this is largely a busy wait while it waits for the data to come in.

The secondary thread (producer crc) is now doing the crc calculations and pushing the data stream into the main buffers.  We will watch this over night and see how the system is running tomorrow.
H1 CAL (CAL)
sudarshan.karki@LIGO.ORG - posted 16:43, Wednesday 03 August 2016 (28854)
Pcal Images for EX

S. Karki, M. Chen

While trying to take the ETM images at EndX today  to find the position of the Pcal beams we notice the following things:

1. Blocking the beam at receiver modules with beam dump before it enters the integrating sphere helps to reduce the scattered light (slightly).

2. The optical lever needs to be turned off to get any decent picture showing the Pcal beams on it. The optical lever light completely obscures the Pcal beams. (See attached Pic 1).

3. Take pictures with illuminator off to get the the Pcal beam spot on it. Use small f-number to get Pcal beam on focus. (see attached Pic 2).

4. Keeping all the settings from 3, turn illuminator on and increase the f-number to max to get all the features on test mass (see attached Pic 3).

Images attached to this report
H1 SEI (SEI)
patrick.thomas@LIGO.ORG - posted 16:31, Wednesday 03 August 2016 (28853)
ISI CPS Noise Spectra Check - Weekly - BSCs and HAMs
FAMIS #6857

HAM5 and HAM6 are well above the reference trace. In chamber work?
Images attached to this report
LHO General
thomas.shaffer@LIGO.ORG - posted 16:00, Wednesday 03 August 2016 (28832)
Ops Day Shift Summary

TITLE: 08/03 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Unknown
INCOMING OPERATOR: None
SHIFT SUMMARY:
LOG:

H1 SEI
jim.warner@LIGO.ORG - posted 14:59, Wednesday 03 August 2016 (28852)
FAMIS # 6077 STS Centering Check

STS and T240 centering checks. FAMIS task 6077 closed.

jim.warner@opsws0:scripts 0$ pwd
/opt/rtcds/userapps/trunk/isi/common/scripts
jim.warner@opsws0:scripts 0$ ./check_sts_centering.py h1
Averaging Mass Centering channels for 10 [sec] ...


2016-08-03 14:55:35.366977
All STSs prrof masses that within healthy range (< 2.0 [V]). Great!


Here's a list of how they're doing just in case you care:
STS A DOF X/U = -0.0 [V]
STS A DOF Y/V = -0.0 [V]
STS A DOF Z/W = -0.0 [V]
STS B DOF X/U = 0.14 [V]
STS B DOF Y/V = -1.259 [V]
STS B DOF Z/W = -0.163 [V]
STS C DOF X/U = -0.0 [V]
STS C DOF Y/V = -0.0 [V]
STS C DOF Z/W = -0.0 [V]
STS EX DOF X/U = -0.249 [V]
STS EX DOF Y/V = 0.603 [V]
STS EX DOF Z/W = 0.032 [V]
STS EY DOF X/U = 0.056 [V]
STS EY DOF Y/V = 0.369 [V]
STS EY DOF Z/W = 0.242 [V]


Assessment complete.
 

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

jim.warner@opsws0:scripts 2$ ./check_T240_centering.py h1
Averaging Mass Centering channels for 10 [sec] ...
2016-08-03 14:54:50.368892


There are 1 T240 proof masses out of range ( > 0.3 [V] )!
ETMY T240 1 DOF Y/V = 0.392 [V]


All other proof masses are within range ( < 0.3 [V] ):
ETMX T240 1 DOF X/U = 0.065 [V]
ETMX T240 1 DOF Y/V = 0.062 [V]
ETMX T240 1 DOF Z/W = 0.08 [V]
ETMX T240 2 DOF X/U = -0.222 [V]
ETMX T240 2 DOF Y/V = -0.262 [V]
ETMX T240 2 DOF Z/W = -0.095 [V]
ETMX T240 3 DOF X/U = 0.035 [V]
ETMX T240 3 DOF Y/V = -0.023 [V]
ETMX T240 3 DOF Z/W = 0.048 [V]
ETMY T240 1 DOF X/U = 0.039 [V]
ETMY T240 1 DOF Z/W = 0.053 [V]
ETMY T240 2 DOF X/U = -0.085 [V]
ETMY T240 2 DOF Y/V = 0.056 [V]
ETMY T240 2 DOF Z/W = 0.055 [V]
ETMY T240 3 DOF X/U = 0.053 [V]
ETMY T240 3 DOF Y/V = 0.036 [V]
ETMY T240 3 DOF Z/W = 0.056 [V]
ITMX T240 1 DOF X/U = -0.16 [V]
ITMX T240 1 DOF Y/V = 0.175 [V]
ITMX T240 1 DOF Z/W = 0.121 [V]
ITMX T240 2 DOF X/U = 0.158 [V]
ITMX T240 2 DOF Y/V = 0.147 [V]
ITMX T240 2 DOF Z/W = 0.142 [V]
ITMX T240 3 DOF X/U = -0.089 [V]
ITMX T240 3 DOF Y/V = 0.108 [V]
ITMX T240 3 DOF Z/W = 0.167 [V]
ITMY T240 1 DOF X/U = 0.055 [V]
ITMY T240 1 DOF Y/V = -0.015 [V]
ITMY T240 1 DOF Z/W = -0.079 [V]
ITMY T240 2 DOF X/U = 0.102 [V]
ITMY T240 2 DOF Y/V = 0.094 [V]
ITMY T240 2 DOF Z/W = 0.047 [V]
ITMY T240 3 DOF X/U = -0.152 [V]
ITMY T240 3 DOF Y/V = 0.092 [V]
ITMY T240 3 DOF Z/W = -0.231 [V]
BS T240 1 DOF X/U = -0.053 [V]
BS T240 1 DOF Y/V = 0.028 [V]
BS T240 1 DOF Z/W = 0.096 [V]
BS T240 2 DOF X/U = 0.085 [V]
BS T240 2 DOF Y/V = 0.086 [V]
BS T240 2 DOF Z/W = 0.081 [V]
BS T240 3 DOF X/U = -0.08 [V]
BS T240 3 DOF Y/V = 0.037 [V]
BS T240 3 DOF Z/W = -0.062 [V]


Assessment complete.
 

H1 PSL
edmond.merilh@LIGO.ORG - posted 13:31, Wednesday 03 August 2016 - last comment - 08:48, Thursday 04 August 2016(28846)
DBB Scans FAMIS# 6584

RPN: 35W- no change

        200W- no change    

FRQ: 35W- no change from 10Hz to 1K. Control signal is better than last week from 1-10Hz. Error signal higher at HF.

        200W- no change

PNT: 35W- no change

         200W- no changes to speak of. High peaks at 100Hz, 1K and HF noise.

MSC: 35W-  no change. TEM10 looks a bit high. HOM power and cts are down marginally from last week

        200W- no significant change. Plot actually looks slightly better than last week despite no adjustments. Errors during measurement can be seen in the .pdf below.

Images attached to this report
Non-image files attached to this report
Comments related to this report
jason.oberling@LIGO.ORG - 08:48, Thursday 04 August 2016 (28866)

Ed's analysis is spot on.  No serious changes from previous scans.

H1 ISC (ISC)
corey.gray@LIGO.ORG - posted 12:52, Wednesday 03 August 2016 - last comment - 10:08, Tuesday 09 August 2016(28842)
HAM6 Photos From Yesterday (8/2): Damage, Dust, & Action Shots

(Betsy, Corey, Keita, Koji & also some photos by Richard M)

Following up on alogs from Keita & Koji, photos from yesterday's work has been uploaded to resourcespace and can be found here:

https://ligoimages.mit.edu/?c=1696

(There's 91 photos.  I did not upload blurry photos.)

I'm attaching highlight photos to this alog & they are roughly numbered in the order taken:

  1. M14 (was removed to blow particle off)
  2. Fingerprints on NW corner of shroud
  3. V-beam Dump (on/near QPD sled on northern part of table) with major damage on both pieces of glass
  4. Burn hole at entrance aperature on the shroud glass for OMC
  5. Photos of damage on V-Beam Dump after pulled out and on inspection table.
  6. Photos of damage on V-Beam Dump after pulled out and on inspection table.
  7. Photos of damage on V-Beam Dump after pulled out and on inspection table.
  8. Action shots of Betsy/Koji & OMC removal
  9. Action shots of Betsy/Koji & OMC removal
  10. Action shots of Betsy/Koji & OMC removal
  11. OMC PZT mirror with burn mark
  12. OMC PZT mirror with burn mark
  13. Particle contaminants on OMC Breadboard
  14. Delaminated epoxy on one of the "tomb stones"
Images attached to this report
Comments related to this report
koji.arai@LIGO.ORG - 20:24, Wednesday 03 August 2016 (28861)

> 4. Burn hole at entrance aperature on the shroud glass for OMC

Today, we took out the black glass panel with a burn hole from the OMC shroud.

The attached close-up photo shows the burn hole above the entrance aperture to the OMC. Also, you can observe many more craters.

As we are going to install the replacement panel, we wonder what was the cause of these misaligned craters and what was the difference between the small craters and the biggest burn hole.

Images attached to this comment
betsy.weaver@LIGO.ORG - 10:08, Tuesday 09 August 2016 (28952)

~10:00AM WED AUG 4th, 2016 - Chamber entrance Particle counts with hand held CC counter:

Particle size Outside of chamber cover, in CR In chamber above table
0.3um 70 0
0.5um 20 0
1.0um 10 0

 

~1PM WED AUG 4th, 2016 - Chamber entrance Particle counts with hand held CC counter:

Particle size Outside of chamber cover, in CR In chamber above table
0.3um   0
0.5um   0
1.0um   10
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