The LIGO Executive Committee Agenda for Monday, May 4, 2009 will be:
(Meeting time: 10:30 am Pacific Time)
1. Announcements
2. LSC - Reitze
3. Focus Topic
Schedule for monthly reporting
4. Change Control Actions
5. Advanced LIGO
- Overall - Shoemaker
- Project Management - Wilkinson
6. Enhanced LIGO - Adhikari / Zucker
- S6 Preparation - Whitcomb
7. Sites
- Hanford - Raab
- Livingston - Giaime
- MIT - Shoemaker / Fritschel
8. Caltech
- Administration - Lindquist
- Engineering
Optical and Mechanical - Coyne
Control and Data Systems - Bork
- Lab Computing - Anderson
- Instrument Science - Gustafson
- Data Analysis and 40M - Weinstein
Calendar of future Executive Commitee Meetings
Weekly Report Highlights:
The first Annual Review of Advanced LIGO took place April 28-30 at LHO. The committee was very positive about the technical and programmatic progress they saw. The out-briefing 'Executive Summary' incldes the following:
- We commend and congratulate the AdvLIGO project team on a very successful first year.
- Project to-date is on track, budget, schedule, contingency and risk are all being well-managed and reporting tools are being effectively used.
The Laboratory Directorate wishes to express its gratitude to the entire Advanced LIGO project, who worked diligently to ensure a successful review. Appreciation, too, goes to the LHO staff and Caltech GC staff who hosted the review and made it a success.
(Read more under the Advanced LIGO report below)
Immediately after the Advanced LIGO review, another NSF review took place at LHO:
The review of the LIGO Exploration Center (LExC - the proposed LHO education center) was equally successful. The review committee commented that they were completely convinced of the need for the LExC and the value of its future contributions to public education and outreach in the Tri-Cities area.
Again, the Laboratory Directorate wishes to express its gratitude to the entire LIGO Laboratory outreach team, who worked diligently to ensure such a successful review.
LSC
Issues (Reitze)
The LSC Executive Committee held a special meeting on Monday to consider two CBC papers for submission to the arXiv.
- The S4 paper "Search for gravitational wave ringdowns from
perturbed black holes in LIGO S4 data" was approved for submission to
Phys. Rev. D. (NB - this is the final paper from the S4 data
set.).
- The S5 paper "Search for Gravitational Waves from Low
Mass Compact Binary Coalescence in 186 Days of LIGO's Fifth Science
Run" was approved for submission to Phys. Rev. D brief reports subject
to a final review of the upper limits vs mass plots.
LIGO
Laboratory Administration (Lindquist)
STATUS OF LSC MOUs (Lloyd)
DOCUMENT CONTROL CENTER (Mak)
- Compiled a list of all LIGO "Appointments" that covers the period between 2001 - present.
- Began to verify all links for accuracy on the LIGO Internal Bulletin Board page.
- Attended an Import Training Session..
FINANCIAL SYSTEMS (Lindquist, Oracion)
>From: Karl Oracion <koracion@ligo.caltech.edu>>
>From: Rudy Arvizu <arvizu_r@ligo.caltech.edu>
>From: Jacqueline Champagnie and Gina Salone
>From: Steve Marroquin smarroqu@caltech.edu
-
See Advanced
LIGO Report Below.
-
Continuing close-out activities for the remaining contracts under the
old Operations Cooperative Agreement. This includes working the final
invoice issues which remain on the old MIT Ops. Contract and resolving
internal Oracle issues.
-
Finalizing formal selection for RFQ No. SM-143 ‘Prototype Cantilever
Spring Blades’ with Janeen Romie. RFQ’s were submitted to eighteen
vendors on 4/17/09 of which only three vendors responded with proposal
quotes meeting the 4/27/09 deadline. The formal selection letter and
non-selection letters will be submitted to the vendors in parallel no
later than 5/4/09..
>From: Ed Jasnow <jasnow@ligo.caltech.edu>
PROPOSALS and REPORTS (Lindquist, Beckett)
CHANGE REQUESTS (Lindquist)
- Change Request CR-090001, which formally establishes
baseline budgets for FY 2009 LIGO Operations, has been distributed for
consideration by the LIGO Change Board. We will issue a revision
incorporating the updated budget model for consideration by the change
board.
HUMAN RESOURCES (Akutagawa)
>From: Cindy Akutagawa <cindy@ligo.caltech.edu>
Quality/Safety (Nolting)
No report provided.
LIGO
Hanford
Observatory (LHO) and Interferometer Operations (Raab)
Summary of Activities at LIGO Hanford Observatory
(compiled by M. Landry)
- Our peaks still remain in the bucket after our vent last
week of HAM6. All tip-tilt mirrors were found to be hanging freely,
without rubbing. The tapered flag/BOSEM combination has sensing issues,
in that there are non-linear regimes in which the readback changes in a
completely unexpected way, as a function of POS and angle offsets.
- Identifications of resonances in the H1 bucket were refined.
There is some overlap in OMC SUS and TT resonances near 173Hz which
could explain the coupling mystery of why the mode is not seen in
onboard GS13s. A Comsol model suggests that the (observed, bent) TT wires may have bounce and roll modes much lower that the claimed ~350, sqrt(2)*350Hz.
- We
ran E13 on the weekend, with reasonable H1 locking in the second half
of the run and typical H2 performance throughout most. Many of the DMT
and analysis goals were accomplished in the run.
- LHO
hosted i) the AdL NSF review, ii) the NSF Outreach Center review, and
iii) the AdL one-day team meeting this week. Lots of people worked hard
in the background to make these meetings successful, including Terry
Santini, Terry Gunter, Tara Brown, Richard McCarthy, Johnathon Hanks
and Larry Wallace, among others.
- An OSA and a GigE camera were installed on the ISCT4 table.
- We're
driving towards our next vent of HAM6 in which we expect to swap all TT
wires for thinner (~.0002") ones, and if successful at LLO, ISI tuned
mass dampers for 153Hz.
Astrowatch (D. White)
- Uptime for the week was 46%.
- Side coil noise appears
to be a limiting noise source for H2 at 50Hz, leading to mods to side
coil gains which may have improved this low f noise (study ongoing).
LIGO
Livingston Observatory (LLO) and Interferometer
Operations (Giaime)
LIGO computing and network security
(Roddy)
Reported under General
Computing, see below
General computing and LDAS admin
(Giardina)
Reported under General
Computing, see below
Reported under LDAS System Administration, see below
Data analysis & computing
(Yakushin)
Storage/Condor/LDAS admin:
Reported under LDAS System Administration, see below
Data analysis:
Reported under Data
Analysis activities, see below
Mechanical and Optical Systems (Coyne)
See also Advanced
LIGO
Controls and Data Systems (Bork)
See Advanced
LIGO
40-Meter Interferometer (Adhikari)
- The interferometer finally locked fully with the RF signals.
The trick was to continuously adjust the DARM (AS166) demodulation
phase as the CARM offset is reduced. This is because the CARM offset
rotates the carrier phase at the AS port whereas the local oscillator
(166MHz SB) is not affected. With the tuning of the DARM demodulation
phase, we are now able to maximize the arm power (i.e. the arms are
fully resonant) robustly. Currently the CARM offset does not go to zero
when the arm power is maximized. This is because there is some offset
in the CARM error signal. The origin of the offset is probably a wrong
demodulation phase. Rob's Optickle simulation suggested that it is hard
to find the optimal demodulation phase for POX_1I because it is
different for X-arm single lock and for CARM. Therefore, we decided to
use REFL_2I as the final CARM signal, which was actually the original
plan. The REFL_2I demodulation phase can be optimized using SRCL with
DRMI configuration. We are now working on this.
-
The spare turbo pump turned out to have an O-ring flange, which we
don't want. Osaka vacuum kindly offered to exchange the pump with a new
copper-gasket type pump. It will arrive next week. Until then, we are
pumping with the cryopump. Joe is preparing for the switch over to the
new pump controller.
Thermal Noise Interferometer (Black)
- Greg took photothermal data on a sample with no optical
coating, only a Cr layer on a bare substrate. Since we know the
material properties of the bulk substrate well, that gives us a
"standard candle" to check the calibration of the system. He found that
the signal was significantly higher than expected, even taking into
account the also higher-than-expected absorption. It appears now that
enough pump light is leaking through the Cr layer to penetrate into the
substrate, increasing its contribution to the photothermal response.
Also, new calculations indicate that we may have initially
underestimated the skin depth in Chromium and requested samples with
too thin a Cr layer. He has now ordered a new set of samples with
thicker Cr layers, whose design was guided by the quantitative results
from our current mirrors.
LASTI (Mittleman)
BSC ISI
- We have started working on the controls, assuming that the
performance will not change very much after we go to vacuum. We think
that the previous changes were due to the air trapped in between the
masses in the large towers of trim masses, which we no longer have.
Quad Prototype
- We have received a new set of ESD extension cables to
replace the broken one. Hopefully after the replacement we can seal up
Lasti and return to vacuum. Meanwhile Brett has taken the opportunity
to do some measurements on a weaker set of eddy current dampers. These
measurements should allow us to come up with a closer to optimum
geometry.
LASTI
- We have spent most of this week getting ready to remove the
HAM-SAS from the Y-end HAM chamber. It will be going to Columbia where
it will be decorating Szabi Markas new lab. Riccardo and Szabi will be
here this weekend to assist.
CIT Science Group (Weinstein)
__________
Chad Hanna:
- I have been working with Romain on running LLOID. We are about to try running over E13 data.
- I have been working on high mass upper limit calculations and post processing.
- I have been reviewing a methods paper for the LSC and sending material to SURFs
__________
Ajith Parameswaran:
- Continuing the work on spinning IMR waveforms.
- Reviewing a paper for CQG.
__________
Cristina Valeria Torres:
- LIGO tours and workshop: Pontchatoula HS (30
students),Prairieville Middle (40 students) and DC Reeves Elementary
(90 students). Worked with Kathy Holt and Amber Stuver for these
events.
- Integrating follow up test "SNR Ratio Test" in CBC follow up checklists, working with Romain Gouaty and Amber Stuver on this.
- Continue proofing the CBC follow up documentation.
- Developing Autotrack with assistance from undergrad R. Obaid from UT-Brownsville.
- Took off-site shifts for the past E13 run at Hanford.
- Making final revisions to GWDAW-13 proceedings paper.
__________
Kipp Cannon:
- Worked on stack-a-flare methods paper.
- Worked on GPU paper for Shin Kee Chung.
- Worked on improving whitening algorithm used in LLOID (low-latency inspiral analysis pipeline).
- Sent notes to surf student for project proposal.
- Worked on coincidence infrastructure with Collin Capano and Chad Hanna.
__________
Antony Searle:
- Attempting PRC runs with S6 candidate Omega pipeline.
- Omega pipeline review tasks.
__________
Peter Kalmus:
- Submitted SGR results paper to arXiv.
- Submitted SGR methods paper to arXiv.
- Submitted SGR methods paper to PRD.
- Preparations for May 2 APS talk in Denver.
- Ongoing work on S5y2+A5 SGRs.
__________
Anand Sengupta:
- Multivariate statistical analysis: exploring pre-processing
of input data before it hits the classifier - two methods namely,
principal compoenent analysis and independent component analysis have
been shown to improve classifiers in literature. I now have code to do
both. Currently I am trying out these preprocessors to check if it
helps us in any way.
- Re-ran failed plotting dags.
- Updated the page on Evan's missed injection to show that e-thinca working correctly.
__________
Gregory Mendell:
__________
Joseph Betzwieser:
- Working on coherent follow up scripts for pulsars,
specifically looking at how signal accumulates at different points of
time in the data set.
__________
Igor Yakushin:
- During E13 coherent WaveBurst was running online half of the time https://ldas-jobs.ligo.caltech.edu/
~igor/E13_ONLINE_all:
- Interesting
triggers were reported to LUMIN (the burst group gateway to external
collaborations) with the latency of about 5 minutes.
- There were 3 detection candidates all of which turned out to be injections.
- Coherent
WaveBurst was using DQ information from XML files to report for each
trigger whether it passed category 1-4 DQs for each ifo and what DQ
flags were active at the time of a trigger.
- Several figures of merit from the last 100 cWB online jobs were shown on the wall of the control room.
- At
the beginning of E13 we encountered various problems: a) we could not
read the new v8 frames until version 8.01 of the frame library was
released on Saturday; b) the new version of glue.segments, used by DQ
query tools, did not work out of the box with python's pickle which is
utilized by cWB online infrastructure for interprocess communication
__________
Drew Keppel:
- Corrections for my thesis.
- Preparing to resubmit the S5 1Yr Low Mass CBC paper.
Laboratory Computing (Anderson)
LDAS Software Systems (Maros)
- Again, efforts have focused on the diskcacheAPI this week.
Scanning of directories is nearing completion. The remaining issue is
detection of mount point conflicts. This should be complete by Friday
May 1st, 2009. Once this is completed, it will be time to start testing
on a tandem system.
LDAS System Administration (Anderson)
Caltech
(Dan Kozak)
- Still rearchiving the A5 frames that were on T10KB format tapes but didn't have ssum set.
- Repoulated node170's /usr1/frames with clusterstage.pl.
- Worked
on problems with LDR during E13: RLS crashed, Directories incorrectly
created with ownership 'ldas', and Missing E13 psets.
- Got E13 archiving set up/working at LHO/CIT.
- Cluster
at CIT work: Shut down services, umounted filesystems, cabled up new
5600 switch to SAN (not working yet due to license problem), upgraded
6140 firmware except home1/2, made 6140 IP addresses consistent and
made /etc/hosts on opterondata-cit, dataserver-cit, X2200 & morbo
reflect that.
- Rebooted opterondata-cit to get bigger ramdisk.
- Did some LSCdataFind debugging after cluster upgrade (first 10 nodes needed /etc/grid-security/certificates).
(Phil Ehrens)
- Installed LDG locally on ldas-pcdev1, ldas-pcdev3, and ldas-grid.
- Supported Josh Abadie with cluster OS upgrade.
- Various user support issues, mostly related to certificates and passwords.
- Updated wiki documentation for submit host configuration.
- Updated wiki documentation for grub bios update trick.
- Ordered IPSCA certs for 6 machines... Recieved 5 certs so far.
(Josh Abadie)
- Upgraded LDAS-CIT cluster to CentOS 5.3.
MIT
(Fred Donovan)
- Some ganglia work; building kerberos slave machine.
Livingston
(Igor Yakushin)
Hanford
(Greg Mendell)
- All E13 raw (L0) data was successfully archived by LDAS, and
all Level 1 (L1) RDS and Level 3 (L3) RDS data for E13 was successfully
generated by LDAS, and all of this data was successfully transferred
via LDR from LHO to CIT. See the data under /archive/frames/E13 at LHO
and CIT.
(Dan Moraru)
- Upgraded old cluster to CentOS 5, disconnected all nodes, and had them shipped to MIT.
General Computing (Wallace)
MIT
(Fred)
- Mostly routine; some purchasing, license renewals.
- Talks with Sonesta and Hyatt re: December conference.
- Networking; sendmail timeout issues (greylisting), evaluating canit spam screen.
Livingston
(Dwayne)
- Troubleshooting graphics problems on new Dell Precision 4400.
- The
problems associated with LIGO.ORG logins on new JIRA install were
related to SELinux. It has been resolved. Kerberos
authentication functions as expected, passing authenticated user to
JIRA. LDAP info was migrated into JIRA and now authorization is
functional. Mick and/or I will be assigning users to groups next
week. I will create a script to keep the user data in sync with
LIGO.ORG LDAP.
- Again, restarted arkeia on cleveland and ran a full backup.
- Ran updates on a couple Windows machines and a few Macs, also disabled Javascript in Acrobat on these machines.
- Upgraded our CanIt installation to the latest version.
- Created mail and GC accounts for two new hires.
- Spent some time reviewing new inventory system with Tom Gentry and our local SEI team.
- Assisted Bonnie with LLO Web issues.
- Set up conference rooms for AdL All-Hands meeting.
- Attended a few meetings.
- Worked a couple small procurement items -Numerous usual/unusual user support requests.
- Cleared spam trap daily.
Hanford
(Jonathan)
- NSF Advanced LIGO Review, LEXC, AdvLIGO all hands meeting support.
- Ordering extra harddrives and misc equipment to keep things going.
(Larry)
- Assisting Jonathan and others in the support of the meetings being held at the Observatory during the week.
- Purchased a number of support items for the meetings.
- Some minor user support.
Caltech
(Mike)
- Finished up loading a linux web-server.
- Trouble
shot an issue on a Engineering workstation. This turned out to be a
corrupted operating system due to a virus infection. This took a
complete rebuild to fix this.
- Ordered another Engineering workstation and other misc. peripherals for users & GC group.
- This week I did a lot of user support on SolidWorks trouble shooting some pdmworks issues.
- More testing on backup software before I make a purchase.
- Other user onsite/phone user support, and other sysadmin tasks.
(Veronica)
- WebComm: Configured the local svn playground for
testing. Implemented sub-navigation in the ported version of the
website, which got lost during the porting; other various
changes/fixes. Populating the website with content is an ongoing
issue; the EPO group is working on the content development. As
the deadline approaches, time management remains the most important
issue.
- Assisted Dorothy with MOU web applications.
- Work on the GWADW website.
- Updates of various Lab/LSC webpages.
(Melody)
- DCC User support (removing wrong files and versions, allowing access).
- Worked on author groups and authorship permissions.
(Christian)
- Karl Oracion - Installed and configured MS Office 2007.
- Eric Gustafson - Installed and configured MS Office 2007 and Adobe acrobat 9.
- Albert Lazzarini - Kar from IMSS repaired built-in isight camera on laptop.
- Garilynn Billingsley - Installed and configured new MacBook Pro.
- Toner cartridge replacements - 6flr Millikan and Fax/printer in Julie's office.
- Continued working on updating unattended Windows XP dvd.
- Other misc.: Continued onsite software/phone support.
(Larry)
- Tracking of some procurement items. Need to reorder some SUN equipment. Helped a few others on quotes and procurement process.
- Modification of dns and mail aliases.
- Support on new certs for different groups.
Distributed (Grid) Computing R&D (Blackburn)
Grid Application Development
Einstein@Home on the OSG:
- Made a few minor improvements in the Einstein@Home on the OSG code base and code documentation.
- Had
two unrelated issues over the weekend that caused job rates to drop:
Einstein@Home server at UWM failed, and the certificate revocation list
updater on the submit host failed. Both are now working and job rates
have risen substantially.
- Current OSG ranking statistics:
Recent Average Credit (RAC) = 50,545.73 down from 81.5K last week;
E@H ranking based on RAC = 10; E@H rank based on
accumulated credits = 39 (no change).
Binary Inspiral Application on Grids:
- Made several CBC highmass searches over one week's worth of
data on OSG sites. These runs disclosed a few bugs in the software
which were communicated with the CBC team. Patches have been provided
and testing has restarted.
- Running at LONI, did an
injection-only search over one week's worth of data. This run required
submitting a rescue dag to complete and took a total of 12 days on that
system. A similar run which included vetos has now been running for a
about 12.5 days and also required restarting with one rescue dag, also
at LONI.
- Writing a data-transfer script which will transfer
data from the LIGO data archive to an OSG Storage Element (SE) using
SRM to allow pre-staging of significant amounts of data for use in
workflows generated with Pegasus that do not have dag nodes for data
movement. This will also need to populate an RLS catalog hosted at
USC-ISI for Pegasus to pole when generating the workflow.
Open Science Grid Integration & Validation Testbed
- Upgraded the LIGO/Caltech OSG Integration Testbed cluster to the newly released OSG 1.0.1 software stack.
- Installed GUMS on testbed and switch over from using the gridmap files to using GUMS for authentication.
- Working with the SRM developers, worked out a fix in the client tools to a URI issues that will simplify data migration scripts.
- Identified issues with the documentation associated with upgrade procedures and provided these to the OSG documentation.
- Hosted the "OSG Campfire" online chat session twice this week.
- Resolved a network issue between two servers in the testbed.
- Looking into a bug tracking system for the testbed and applications we are running on the OSG.
Grid Management
- Discussed with OSG Council co-chair recent events regarding
the SURAGRID OSG exploratory agreement between the two grids.
Went over current successes SURAGRID has had with running one
of their applications on the OSG.
- Attended a CBC hosted
telecon on planning for using grids which brought
together CBC application developers, OSG applications
team, VIRGO grid computing planners, and Pegasus developers
to discuss goals and changes to existing code base to support
broader use of grid infra-structures on both sides of the Atlantic.
This was mostly a kick-off meeting, but it identified areas
where benefit between LDG, LONI and EGEE usage by VIRGO could
benefit. Plan to have a followup meeting. The two areas where we will
focus in the near term are on getting VIRGO enabled for running
workflows on EGEE similar to how CBC workflows are now running on LONI
and OSG, and improving reliability. Plans were made for the Pegasus
developers to visit Syracuse to work with CBC team there on pipeline.py
and ihope codes to address the robustness and reliability.
- Drafted
a recommendation to the LSC Computer Committee advising that an
email be sent out to all computing resource administrators in the LSC
hosting shared resources to address the recent UDEV vulnerability. The
language for the email to the resource administrators was also drafted
and provided to the CompComm.
- Held meeting with staff to
understand the drop seen in Einstein@Home jobs running over the weekend
on the OSG. Examined the logs, OSG and E@H monitoring tools to see
what had changed. The resolution turned out to be due
to a failure to update Certificate Revocation Lists on
the submission host.
- EVO remote participation proposal has now been submitted to the NSF.
Advanced LIGO and Supporting R&D (Shoemaker)
Advanced LIGO Management
The first Annual Review of Advanced LIGO took place April 28-30 at LHO.
The committee was very positive about the technical and programmatic
progress they saw. The out-briefing 'Executive Summary' reads as
follows:
- We commend and congratulate the AdvLIGO project team on a very successful first year!
- LIGO
Laboratory Management Team has clearly defined and maintained
AdvLIGO as priority #1; all parties appear to be buying into this
precept.
- Project to-date is on track, budget, schedule,
contingency and risk are all being well-managed and reporting tools are
being effectively used.
- The current schedule variance was
reviewed. The panel believes that much of this variance is an artifact
and sees no need for additional actions.
- We believe the current contingency level of 23.5% to be adequate.
- We
encourage the team to fully explore their alternate integration
strategy and to define the baseline schedule by Fall 2009 as planned.
- We
encourage the team to continue being proactive in identifying staffing
needs and augmenting staff to key areas before problems develop.
The report this week is brief as many people were busy with the review.
Quality Assurance
From: Mick Flanigan flanigan_m@ligo-wa.caltech.edu
- JIRA development: We have completed Phase 1 on the
development side, with the exception of one lingering bug we are
working. Once this bug is sorted, we will push the build to the
production server on 5/1/2009. System will go through a few final tests
and then will be opened to loading parts into the system.
- Phase
2 SOW is out and we are awaiting the proposal from the potential
suppliers by this Friday. Phase 2 is scheduled to begin 5/4/2009 and
extend for 6 weeks.
- QA: Brian Lantz and I will be meeting
to create a report on the review of one of our seismometer suppliers
equipment reliability and in house QA/QC program. Rolf Bork and I will
be meeting to develop JIRA for software bug tracking to suit his teams
needs. We will met the week of 5/4/2009 and these requirements will be
gathered for implementation in Phase 2 JIRA.
Prestabilized
Laser
From: Peter King <pking@ligo.caltech.edu>
Operations
- I have been chasing up some procedural material for safety
matters concerning new staff on the project. Otherwise nothing
significant to report.
Project
- Attendance at the NSF Review this week.
-
Obtained an intensity stabilisation photodiode board - thanks Ben - for
some rudimentary testing of signal integrity for long cable runs.
Input Optics
Rodica Martin <rmartin@phys.ufl.edu>
ELIGO Commissioning (LLO)
- We unlocked small optics in HAM1. (Kate)
ALIGO Design
- We are working on HAM2 layout. (Luke)
- We
continued working on the IO ZEMAX layout to include the crystals of the
Faraday isolator and other IO optics, and started gathering the latest
COC optics specifications to do an independent ZEMAX check on the beam
propagation in the IFO once the layout is finalized. (Rodica)
ALIGO R&D
- The testing of the LMA coatings at 90W incident power and ~45 micrometer beam diameter is progressing successfully. (David F.)
Core Optics
From: GariLynn Billingsley <Billingsley_G@ligo.caltech.edu>
- The TIS measurement on the RTS has been recovered. I just
measured one of the two 1" HR mirrors, which have been characterized by
CASI, other one will be measured in early next week since the
electricity system of OTF lab is being worked for the installation of
new cleanroom.
- Preparation of the CIT COC Cleaning
Laboratory including carpentry installation of gas bottle wall straps,
and electrical wiring in preparation for the cleanroom installation.
- Vendor management on quotation development and pre-PO tests on the automated defect counting microscope.
- Resume downselect and phone interviews of 3 COC technician candidates.
Control and Data Systems
From: Vern Sandberg <sandberg@ligo-wa.caltech.edu>
Operations: R&D, ELIGO DAQ, and Electronics
LHO - Electronics:
- Began testing the top driver electronics for the BSC test stand.
LHO - Systems/Software:
- Work continued on the advligo DAQ test stand bring it up to operation.
- Setup "gigE" camera and a dedicated workstation in LVEA by ISCT4.
- Worked to get the new nds0 data-archive retrieval problem resolved.
- Performed initial tests of the DMT raid system.
- Evaluated CDS readiness for S6.
- Evaluated CDS security readiness for S6.
LLO - Systems/Software:
- The new X2200 servers for the upgraded frame-builders were
loaded with CentOS 5.3 (or Solaris 10) and configured. This prepares
them for installation in early May.
- Developing the
standardized scripting environment (now at LLO) that simplifies the
change from Solaris to Linux. Plans are being developed to deploy these
to LHO and standardize the computing and control environment.
Project: AdvLIGO Systems
SEI:
- Selected the Athena II as the PC-104 computer for the pump
servo, the same one as was used in the LLO mid station, and ordered one
to use in development.
- Assembled and tested the STS-2 Distribution board. It is now ready for production.
- ISI Coil Driver, Finished design, schematic reviewed, and moving now to laying out the PCB Board.
SUS:
- Vigorous and rigorous testing of the driver electronics continues.
DAQ
- Test stand assembly continues.
For additional
information about this report, contact Albert Lazzarini