LIGO Weekly Report for the week of 14 May - 18 May 2018

Special Announcements LSC Activities LIGO Laboratory Administration LIGO Laboratory Safety
Computer Security LIGO Hanford Observatory (LHO) and Interferometer Operations LIGO Livingston Observatory (LLO) and Interferometer Operations Engineering Data Analysis and Astrophysics LabWide Activities Advanced Distributed Data Analysis R&D Laboratory Computing Advanced LIGO
Past Weekly Reports

The monthly LIGO Staffing Committee meeting will preempt the Executive Committee meeting this coming Monday

Special Announcements
Albert Lazzarini

Welcome to Charlie Taylor, the new LIGO Laboratory Safety Officer. Charlie is located at LHO and is a Certified Safety Professional with over 33 years of environmental, health and safety (EHS) management experience. He has developed EHS programs and policies, conducted safety training, management, and oversight for work in varied environments. If you have safety concerns or issues, please feel free to contact Charlie and/or your local safety officer.

LSC Activities
David Shoemaker (Laura Cadonati)

LIGO Laboratory Administration
Hannah Hansen
Property Administration
Nichole Washington
Financial Systems
Giselle Hepker
Procurements and Subcontracts Management
Eric Garcia
General Business Services
Julie Hiroto

LIGO Laboratory Safety
Albert Lazzarini (Richard Oram, Bubba Gateley)

Following the LLO 2018 Annual Safety Review Report

The list of LLO 2018 Corrective Action Requests (CARS) have been entered by Pricilla into the FRS under LLO Safety. Note the CARs have been assigned to the appropriate assignee and we will track the completion of these CARs in the regular 4:00 pm LLO operations focus meeting along with other FRS faults.

Next Week: LIGO Safety Officer Charlie Taylor will visit LLO and be introduced to the staff and meet with the key safety responsible leads at LLO.

@LLO we plan to review LLO’s hurricane preparedness plan with key staff ahead of 2018 hurricane season which starts in a few weeks.

Computer Security
Randy Trudeau
Ryan Blair

LIGO Hanford Observatory (LHO) and Interferometer Operations
General Operations
Michael Landry
Facilities Operations/Maintenance
Jeff Jones
Electronics, Control and Data Systems Operations
Richard Mccarthy
Control Room Operators
Corey Gray


Jeff Bartlett:

Corey Gray:

Ed Merilh:

Travis Sadecki:

TJ Shaffer:

Patrick Thomas:

Work on migration from TwinCAT 2 to TwinCAT 3.

Cheryl Vorvick:

Information Technologies
Jonathan Hanks

CDS Computing

H1 Commissioning
Daniel Sigg (Keita Kawabe)

No commissioning due to vent activities.

Education and Public Outreach
Amber Strunk

LIGO Livingston Observatory (LLO) and Interferometer Operations
General Operations
Richard Oram

Post O2 Planned Engineering

This Friday marked the end of week 37 of the Planned Engineering and Commissioning program of projects which commenced Aug 28th 2017. See chart below for outline and progress.

LLO Post O2 Vent Plan

The warm up of cryopump CP4 commenced on Monday as planned.

An X arm accumulation leak test is in progress.

The extended vacuum team made progress on preparations for the X End gate valve (GV11) repair.

ETMy replacement fiber welding is in progress.

Highlight for next week:

Observatory Computerized Maintenance Management.

FRS - Corrective Maintenance

Key Performance Indicator dashboard of issues tracked in the FRS.

FAMIS- Preventive Maintenance

LLO Tuesday Preventive Maintenance Work Orders 2018 (FAMIS)

L1 Commissioning
Valery Frolov

After the HAM6 chamber was pumped down the corner interferometer was relocked in various configurations (DRMI SB, PRMI CR/SB). The investigation of the RF noise coupling to the laser frequency/amplitude and interferometer sensing/control signals is ongoing.

The HAM1 squeezed light injection system fiber connection was repaired. The work on the squeezed light characterization restarted.

Vacuum Group
Scott Mccormick (Richard Oram)

Reporting for the Vacuum Team, Harry Overmier, Justin Schexnayder, Brent Hymel, Scott McCormick, Mike Fyffe

Detector Group
Janeen Romie (Richard Oram)

Detector Engineering weekly summary for Stuart Aston, Matt Heintze, Adam Mullavey & Arnaud Pele

Control Room Operators
Gary Traylor (Richard Oram)

Reporting for:

Gary Traylor, Mike Fyffe, Doug Lormand, Joe Hanson, Danny Sellers, Tom Evans, William Parker, Raine Hasskew

Doug Lormand

Gary Traylor

Danny Sellers

Mike Fyffe

Joe Hanson

Raine Hasskew

Computing and Electronics (CDS, etc.)
Keith Thorne

Michael Fyffe

Doug Lormand

Michael Thomas

Alyssa Bramley (just back from leave)

Keith Thorne

Paul Corban

Carl Adams, Michael Laxen

Timothy Nelson (Richard Oram)

Facilities Weekly Completed FRS report:

Facilities Weekly Accomplishments / Enhancements:

Education and Outreach
William Katzman

Dennis Coyne
Mechanics, Optics & Vacuum
Norna Robertson
Control and Data Systems
Rich Abbott
  1. Another week where all of us spent slugging it out with the first article EFM. We were able to ship this unit to LHO after it passed all mechanical, vacuum, and electrical testing. At the last minute, we found a small discrepancy relating to the common mode rejection ratio (CMRR) adjustment. We know exactly why the CMRR is not as good as it should be, but we didn’t want to open the sealed unit at the eleventh hour. Instead, we are full speed ahead on the second unit which will not have this issue. After getting the second unit through the testing phase, we will ship it “just in time” to replace the first unit at LHO. This will allow site staff to get some hands-on time on the first unit in the interim.
  2. Todd is working on the manufacture of 9 more of the revised IO chassis. The first unit was shipped to LHO for evaluation, but suffered some damage in shipping that relates to a poorly mounted component on an internal circuit board. We will fix this and revise the basic design.
  3. Kavya met with Dennis to get a download of his nice time domain analysis of the fast shutter dynamic behavior. She reports getting valuable insight from her meeting.
  4. Wrote a detailed procedure to guide the in-situ repair of the ETM ESD connector closest to the ERM. Got feedback relating to clarity and made a revision to this procedure. Ordered parts to aid in this repair activity.
Remote Access
NDS2 (client, server, and server infrastructure)
Jonathan Hanks

Data Analysis and Astrophysics LabWide Activities
Alan Weinstein
Caltech (CIT)
Kent Blackburn
Jonah Kanner
Thomas Massinger
Jessica Mciver
Hanford (LHO)
Gregory Mendell

Advanced Distributed Data Analysis R&D
Kent Blackburn

Laboratory Computing
LIGO Analysis and Open Data
Kent Blackburn (Jonah Kanner)
LDAS Software Systems
Ed Maros





LDAS System Administration
Juan Barayoga
Sharon Brunett
Phil Ehrens
Philippe Grassia
Dan Kozak
Gregory Mendell
General Computing
Melody Araya



Mike Pedraza
Veronica Kondrashov
Larry Wallace
Ryan Blair

Dazniel Zepeda





Matthew Cowart

Advanced LIGO
Data Computing System (DCS)
Stuart Anderson
Data Analysis Optimization
Peter Couvares
Joshua Willis
Data Analysis Optimization Operations supported
Sharon Brunett
For additional information about this report, contact Albert Lazzarini