Weekly Report for Week Ending September 25, 2003

The LIGO Executive Committee Agenda for Monday  September 29, 2003 will be:

 (Meeting time: 10:30 am Pacific Time)

Open meeting 10:30 - 11:30

1. Announcements
2. LSC Issues (Saulson)
3. Comments on Weekly Report
4. WBS 1 LIGO I Construction (Lindquist)
• Field Change Orders/Contingency Liens/Change Requests
5. WBS 2 LIGO Lab Operations
• Administration (Lindquist)
• Sites (Raab, Zucker, Shoemaker, Sanders)
• Detector (Whitcomb, Coyne)
• Campus Research Facilities (Weinstein (40 Meter), Libbrecht (TNI), Zucker(LASTI))
• Data Analysis and Computing (Lazzarini)
6. WBS 3 and 4  Advanced R&D and LIGO II (Shoemaker)
7. CHANGE CONTROL BOARD/TECHNICAL REVIEW BOARD SESSION AS NEEDED

Special Items:  planning for 2 NSF reviews , LSC meeting, PAC meeting,   S3 run

Special Announcements:

Weekly Report Highlights
 

LSC Issues (Saulson)

no report

LIGO I Construction/LIGO Laboratory Administration (Lindquist)

LIGO Weekly Site Telecon (Lindquist)
There was no site teleconference held on Thursday, September 25.

The list of current actions revised to reflect the status of open actions assigned through September 4, 2003 may be found at ACTION LIST.

From: Ed Chargois <chargois_e@ligo.caltech.edu>

Nothing significant to report.

>From: Linda Turner - turner@ligo.caltech.edu>

Web pages for the DCC give simple how-to's for document numbering, easy access to the latest on-line documents, and search capabilities for the DCC database. Take a look. . .

ACCOMPLISHMENTS

• No report this week.
• Reminder to LIGO staff:  Please make sure that as a minimum, each document submitted has a LIGO number, author's name, and date.  Many documents are missing one of more of these essential pieces of information!

ACTIVITY
 

09/25/03	Packages	Faxes
In	24	36
Out	11	52

Press here to access the DOCUMENT CONTROL CENTER WEB PAGE.

From: Esther Cunningham <esther@ligo.caltech.edu>

Press here for ACCOUNTS PAYABLE HISTORY DATA .

From: "Brambila, Ruth" <Ruth.Brambila@caltech.edu>

• Completed change order #1 to Amerion.  Working on change order #7 to the JPL workorder for Raytheon adding funds for FY2004.  Working  on the new elevator maintenance contract for LLO.
• Closed out about ten subcontracts and sent out the Release of Claims.  Closed out purchase orders to relieve encumbrances before fiscal year end.
• Working on the two new consultant agreements.
• Placing and reconciling pcard orders.

•  No report.

• No report this week.
• Financial reports can be found at: http://docuserv.ligo.caltech.edu/~fireport

From: irena@ligo.caltech.edu (Irena Petrac)

No report this week..

• No report this week.

SUPPORT (Baldon, Lloyd, Tischler)

>Irene Baldon

• No report this week.

Processed the usual invoices for payment. Tracked and followed up on invoice problems. Reviewed and recorded payments processed by Esther the week of  September 15.Processed the usual requisitions, change orders and payment requests.Continue to monitor contract and blanket order encumbrance and notify task managers when supplements are needed.Work with Ruth on "formally" closing out contracts: Apollo Sheet Metal, Beuerman Miller Group, BOC Gases, Demco, George A. Grant, Howden Buffalo, Inland Asphalt, Interwest Technology, Jani Kare Janitorial, Manpower, Inc., MMR Constructors and Sun River.Jim continued with data entry in the LIGO database and helping out in the DCC.

• Seminars and Visits, Travel/p-card (Irene on vacation), Various HR/Payroll (Cindy on vacation)
• Submission of FY2003 Annual Report and FY2004 Work Plan (LIGO-M030137-00-P)
• Educational Outreach Proposal submission prep, proposal in response to NSF's IPSE program announcement
• Prelim arrangements for PAC15


For more details go to: http://docuserv.ligo.caltech.edu/cgi-bin/Calcium37.pl?CalendarName=Ryan&Op=ShowIt

ADVANCED LIGO (Cost Schedule Control Systems) T. Frey
From: Thomas Frey <tfrey@ligo.caltech.edu>
 

Out of the office on Friday the 19th.
 

For list of documents that are being used to develop Adv. LIGO Cost and Schedule, see http://www.ligo.caltech.edu/~tfrey/Cost_MTG_082002/
 

Continued development of a proposal for implementing Primavera Project Planner Enterprise.

Continue working on draft text of implementation.

Clink on links to view the Draft Work-plan and Estimate.

Continue testing of Primavera Enterprise version 3.5.1.  See the links below for information / technology demonstrations: (From Local Primavera Dealer)

Primavision - http://primavision.drmcnatty.com:8080/phoenixwl/login_p3ec  Login using Username:  admin and Password:  admin.

Progress Reporter - http://www.projwebsite.com/GroupServerP3e/en/  Login using Username:  admin and Password:  admin.

Static HTML Example - http://ligo.caltech.edu/~tfrey/SUS_WebProj/ (AdL Suspensions Only)  NOTE:  This is after importing and before any data corrections.

Static HTML Example - http://ligo.caltech.edu/~tfrey/DAQ_WebProj/ (AdL DAQ Only)  NOTE:  This is after making adjustments to the WBS so that it displays as expected.

Will attend the Users conference in November at Orlando, Florida.  See http://www.primavera.com/events/conference.html

Initiated tech support incident(s) with Primavera regarding some issues with P3e 3.5.1.  As requested by Primavera, I prepared a detailed explanation of the issues to be resolved.

Continued work inputting additional coding as requested by Carol to identify deliverables, milestones, and interface activities.

Phone conference with Carol regarding preparation for the annual review.

Started to prepare meeting minutes regarding the tracking of action items discussed with Carol.  Will use the project controls meeting minutes as the point of continuation.

The following is a summary of status by sub system:
COC - Still need completed WBS dictionary and BOE.  Contacted Garilynn regarding the need to update COC with progress through 09.26.02 to prepare for the annual review.

PSL -  No action items pending.  Followed up with Peter and Benno has provided data.  Peter has yet to review.  Contacted Peter regarding the need to update PSL with progress through 09.26.02 to prepare for the annual review.

AOS - Still need completed WBS dictionary and BOE.

IO -  Still need completed WBS dictionary and BOE.

SUS - No action items pending.

Scheduled a meeting with Janeen to discuss preparation for scope discussions at the weekly meeting.

Helping Calum and Mike with spreadsheet templates related to drawing lists and BOM.

SEI - No action items pending.

ISC - Still need completed WBS dictionary and BOE.

LDAS - No action required at this point in time.

INSTALL - No action items pending.

DAQ - No action required at this point in time.

PM - No action required at this point in time.

FAC - No action required at this point in time.

SUP - No action required at this point in time.

ROSTER DATABASE:
BK is continuing work on action items.

Continued input of changes / corrections regarding supervisors and departments.

COST BOOK DATABASE:
Reconciling cost account listing from cost book and schedule loading.

Project Web Site for posting schedule and progress related data continues to be updated with the latest and greatest.

See http://www.ligo.caltech.edu/~tfrey/index.html

We submitted two proposals and work plans:

• FY 2004 Annual Report and Request for FY 2004 Funds,
• Outreach Proposal Revision.

The following change requests are open.

CR-030015	FY 2003 Livingston Observatory Detector Maintenance Expenses (Increment)	R. Wooley	July 14, 2003
CR-030016	Hanford Facilities 2.2--Divide the Large Equipment Access to Facilitate Movement of Large Items (currently assigned to FY 2004 liens list)	J. Worden	July 31, 2003

From: Cindy Akutagawa <cindy@ligo.caltech.edu>

• No report (vacation).

Quality/Safety (Tyler)

• Nothing significant to report this week.

LIGO Hanford Observatory (LHO) and Interferometer Operations (Raab)

Summary of Commissioning Activities at LIGO Hanford Observatory  (compiled by M. Landry)

A major source of lockloss during science runs has been the so-called LVEA bump, a
seismic disturbance local to the corner station, traced to an LN2 dewar external to the
building.  In effort to minimize theorized stick-slip events from inside the dewar, CP2's LN2 tank had its S and E supports jacked up by ~8mm to better aright the unit.  Now, we
wait and watch.

2K IFO
Much work remains on the 2k prior to the freeze.  ETM and FM dewhites went in on the
weekend.  WFS work has centered around the Refl port; WFS 3 can be closed on the RM,
but WFS4 yields mixed results, helping ETM pitch but requiring offsets in yaw.

Plan view photos of the AS port table ISCT10 were posted.

Input pointing was realigned as we were well outside the strike zone on the beamsplitter.
After a few attempts this alignment was nailed down, and CM locking resumed.

4K IFO
Current inspiral ranges are 1.1-1.2Mpc.  Modifications to running parameters such as
WFS and QPD gains, and AS PS whitening improved the stability of the ifo, something
which it has lacked in the last month.  Further  ASPD and POB whitening mods
appeared to have further stabilized the 4k, yeilding 3 hour locks (despite some tidal woes).

The ASPD demod phases were measured in single-arm configuration.  ASI servos
had their phases adjusted to a precision of <0.1 degree.

WFS work continued, with investigations on WSF2, and the effect of moving the second
Guoy phase lens ~1cm (20 degrees of Guoy phase): better WFS sensitivity to dithering,
lower noise floor.  Further investigations include measurements of the sensing matrix in both hot and cold states.  It would be overly optimistic to say we understand the comparison
between the two states...

An H1 arm cavity g-factor measurement was made.   Shown in the plot is a transfer function
made by driving the VCO test input and monitoring ASPD2 Q out.  Beautiful agreement with
a dynamic resonance model seen.  The technique may be exploited to produce high-precision
radii of curvature measurements.

The 4k periscopes all have dampers attached; 2k's are in progress.

DAQ
Fb3 is running with its new disks and configuration, leaving 5.7 days of full-data lookback.
The RFM was upgraded, and the ETMs received new code on both ifo's.
 

LIGO Livingston Observatory (LLO) and Interferometer Operations (Zucker)

Interferometer commissioning:
--------------------------------------------------------------------
Continued commissioning and stabilization work in preparation for S3
with lots of help from visitors.
 

We conducted a mini-run Saturday night; interferometer performance was
not spectacular, but was adequate to qualify much of the monitoring
software and flush out a few bugs. Many thanks to all the visitors who
contributed to a successful test program.
 

After the mini-run Rolf Bork and Alex Ivanov installed the newest
version of the LSC realtime code, bringing L1 up to the same revision as
H1 and H2. In addition to improved speed and performance, this code
permits use of multiple photodetectors on the antisymmetric port, and
implements dynamic sensing matrix calculation in detection mode for
improved stability.  Testing is complete up to the point of locking the
interferometer, but...
 

We had a catastrophic failure on our dark port sensor, subsequently
traced to laser-induced damage to the photodiode. No unusual power or
energy exposure preceded the failure (unlike a similar incident recorded
at Hanford). However a cluster of damage sites found in post mortem,
and similar craters found on nearby (still functional) diodes,
suggests the possibility of cumulative minor damage over time. With
equipment and materials overnighted from Caltech and MIT, Rich Abbott
was able to repair and then retune and characterize the detector. A fast
mechanical shutter mechanism (ironically slated for installation just
after the fateful run) should minimize the possibility of recurrence.
 

This shutter was among several improvements slated for ISCT4 this week.
We have nearly completed these modifications, which will reduce beam
clipping, remove the troublesome EO shutter, and permit sharing the
light among three photodetectors (one a dedicated "acquisition"
detector).
 

Additional work on the PSL/IO table rooted out a 20% power loss
attributed to a misaligned polarizer, and repaired and recalibrated
sensors monitoring the power into and out of the mode cleaner.
 
 

Front Office (Bonnie Wooley)
--------------------------------------------------------------------
ADMINISTRATIVE:  Met with representatives from the National Science
Board to work out logistics for the February NSB meeting to be held
here at LLO in February 2004.
 

OUTREACH:  Hosted annual conference of Livingston Parish School
librarians in the auditorium.
 

Safety/security (Riesen)
---------------------------------------------------------------------
Finalizing modified LLO Laser Safety SOP draft for approval.
Performed weekly IR scans of the PSL and ISC/IOT tables. Found no errant
beams.
Found no obvious safety concerns during weekly site safety tour.
Completing personnel, time/dates for LLO staff CPR certification.
 

LLO Seismic retrofit (Kern)
---------------------------------------------------------------------
Completed the integration of the housing and actuators into the BSC and
HAM SolidWorks models. The next step is preparation of Bills of
materials and drawing trees specified in T030143.  Marcel has jumped
ahead of this step to check the drawings of the housing and HAM piers so
we can get those onto Dennis, Ken and Brian for approval and release.
Ken got a call from the vendor manufacturing the housing, who has not
yet received his PO.  Found out contracts are still waiting for a
written approval from the NSF, and Gary Sanders is checking to find out
what the hold-up is.  Ken Mailand is at LLO this week to scope-out the
mechanical equipment room, and LVEA situation with an eye to beginning
the layout and design of the manifolds and piping for the seismic
retrofit.  All of Monday I spent supporting visitors this week, helping
some with workstations, locating and installing the applications they
needed to work here, as well as clearing and re-authorizing their laser
safety interlock cards.
 

Sharon Dew and Pedro Moreira, manufacturing engineers with JPL are here
to assist us by visiting the shop manufacturing the machined parts for
the hydraulic actuator, assessing their capabilities and readiness, and
helping them come up to speed if at all possible.
 
 

CDS networks (Parameswariah)
---------------------------------------------------------------------
Rolf and Alex visited LLO. New code installed for LSC/ASC/DSC. Moved QPD filters
from ASC frontend to the End station processors. Updated master.config file to
correspond to changes. Rerouted the ISC network to eliminate lsc skew. Refer
elog for other work done or for more details.
 

Rebooted the ASX1000 and 3810 switches in the MSR to clear out some network
problems. Installing solaris 9 on the old frame builder LLOFb2 to replace it
with the new one we had put in. Dan Kozak and Alex Ivanov are working with me on
this.
 

CDS software (Khan)
---------------------------------------------------------------------
1) Worked with Rolf and Alex on LSC code update,
2) Mode Cleaner Autolocker sequencer update
 
 

Science & PR (Frolov)
---------------------------------------------------------------------
IFO commissing: testing the ifo locking after the lsc code upgrade
and ISCT4 table modification.
 

Outreach: hosted the visit of Michael Crosby from NSB (with Bonnie).
 
 

Detector commissioning and data analysis (Franzen)
---------------------------------------------------------------------
1) I have continued to work on the f2p -filters together with Weili Ke.
The present status is that we have the ETMX, ETMY, BS and RM filters
ready for testing during ifo operation. The filters are calculated from
the values of the measured pendular and pitch resonances. However, the
ETMY filter obtained by such calculation was rather bad. This could be
related to ETMY pitch resonance which is a bit higher than for the other
optics... Instead we had to find a good f2p filter by trial and error
which was pretty tedious. We have also invested a lot of effort in
optimizing the actuator coil gains in order to reduce the coupling. We
will continue by testing the ITM filters at the first available
opportunity.
 

2) Sergey Klimenko was here at LLO and instructed me how to run WaveMon.
Initially I started to run S2 jobs on delaronde but later during the
week changed to alvar, which John Zweizig just have prepared for
dedicated off-line DMT work. Now my job is to calculate and look at the
L1 S2 playground vetoes and compare with vetoes obtained by other
methods.
 

Detector commissioning and HPLF (Amin)
---------------------------------------------------------------------
1) Two new AS port photodiodes have been repaired and tested. Both
photodiodes have been installed by Peter F. and Nergis M. during last
night's assembly of ISCT 4. I aided Rich in the optical test portion of
the PDs.
 

2) I found the reason why the MC input monitor photodiode was not
reporting. David Ottoway, Rich Abbott, Flavio N. on remote and I traced
down the main PD data cables connnecting the input PD monitor to the PSL
crate. We found a single wire that had fallen out of its breakout box.
Reconnecting it to its appropritate seat restored the monitor. We
finally installed the appropriate calibration to the Epics database.
 

3) Due to technical difficulties with the High Power Laser Lab's laser
contractor, UF and LLO has begun searching for a new company to build a
100 W TEM 00 laser. Several companies have been found and have sent in
bids. These bid prices and the company capabilities have been circulated
to the interested parties including UF, CalTech, and MIT. I am currently
waiting on two more bids to for evaluation expected later this week and
early next week.
 

4) On Monday, Brian and I visually inspected the AS (detection) PD. It
was clear (to me) that two laser induced damage (LID) were on the active
surface. An RF sine sweep was performed using the 980 nm laser to test
the PD's response to RF and DC. The data gathered indicated that the LID
penetrated the deep into the PD's active area.  During an inspection of
ISCT 4 with the MIT team, I suggested we look at the other PDs sitting
on ISCT4. LID was apparent on all sensors except the POX PD.
 

5) In the PSL, David Ottoway and I set about increasing the amount of
power entering the suspended mode cleaner. I indicated to David that
much of the power was being lost in a polarizer sitting immediately
downstream of the EOM chain. After a few phone calls to key personnel
(Peter King and Mike Z.), this polarizer was realigned. There are now
4.7 W available for the suspended mode cleaner. The PMC's MMT still
needs final tuning.
 

6) Over the weekend, I participated in M4 and critiqued two DMT
monitors, New_Seis_BLRMS and LockLoss.
 
 
 

Data analysis (Yun Yong Wang)
---------------------------------------------------------------------
I'm doing the Inspiral Veto efficiency study with glitchMon. There
is no interesting result to show. I'm trying to measure the position
of the beam center on the mirror with the LASER BEAM ANALYZER also.
 
 

LDAS (Yakushin)
---------------------------------------------------------------------
LDAS admin:
 

1) Received the new metaserver. When configuring it, discovered that
there is a problem installing database administration server under RH9.
The problem was resolved by Isaac.
2) Replicated data from Solaris to Linux machine to test that we can
migrate our old databases to the new Linux metaserver.
3) LDAS@LLO is down for T3 reconfiguration that should hopefully be
finished tomorrow.
4) Fire suppression system was installed in LDAS room last week.
Currently the work is under way to put tiles back on the ceiling and to
clean up the remaining mess.
 

LDAS data analysis:
 

1) All my problems with the parallelized version of waveburst turned out
to be NFS problems (Masha helped me to figure it out): if one does not
rename a new version of DSO, it is not guaratanteed that NFS cached
images would be refreshed at the nodes. Now waveburst runs great.
2) Working on more accurately using calibration information inside
waveburst and simplifying the output format.
 

Detector/Technical Support (Coyne)

no report

40 Meter Interferometer (Weinstein)

• Commissioning (Miyakawa, Kawamura):
• As reported last week, we have PSL light through the mode cleaner the input optics, and the main IFO. The MC is locked, and we see Michelson fringes at AP and SP, and Fabry-Perot flashes in both arms.
• Our current big effort is to wire up the LSC rack and set up and align all the sensing beamlines.
• In preparation for this, Osamu and Seiji are tuning up the PSL and mode cleaner.
• They optimized the gains of the PSL PMC and FSS servos.
• They then turned to the mode cleaner, to measure the frequency noise and compare it to what we had before the vent and the re-layout of the PSL path. They adjusted the EOS to put more light on the MCR RFPD, to minimize the noise.
• They then measured the noise in the MCR VCO feeback signal and compared it with pre-vent version. In almost the entire frequency range, it is as good or better than before. AND, they took the measurement with the PSL enclosure HEPA filter *on*. Previously, noise was *much* worse with the HEPA filter on; now, noise with HEPA on is as good or better as pre-vent noise with HEPA off!
• Many peaks in the 300-1000 Hz region, which were due to PMC and mirror vibrations downstream of the old FSS pickoff are gone, now that the FSS pickoff is after the PMC. Mysterious peaks at 25, 32, and 50 Hz are now gone.
• The region from 120-500 Hz was worse than before. Osamu traced it to the absence of dewhitening on MC2. When Jay fixed this, the excess noise in that region went away. The noise spectrum is now better than before at all frequencies.
• The re-layout of the PSL required re-optimization of the mode matching into the MC. Osamu and Seiji measured the visibility of the MC to be 75%; should be > 95%. They used a translation stage to fix the mode matching; visibility is now around 98%.
• They will now re-establish the transmitted sidebands and re-measure the MC length.
• Installation (Vass, Miyakawa, Smith, everyone):
• Steve and Bob covered up all vacuum viewports.
• We need one more camera mount for viewing the BS optic. Larry Jones ordered two more camera mounts. And, Bob will put extensions on existing camera mounts for cameras with long lenses.
• Electronics (B. Abbott, Heefner, Taylor)
• The LSC rack is the focus of much attention. Most of the modules are in place, all of the cross-connection wiring is done. Art, Bob, and Ben are beginning the cabling of modules to cross-connects. Ben is ready with tester boards.
• Unfortunately, we *don't* have enough multi-conductor cable for the runs from optical table to rack! Bob, Jay, and Ben are scrambling to get suppliers.
• Ben installed all of the components needed for the LSC part of the LSC AUX crate (c1lscaux). It is now ready for Mohana to install code, databases, screens.
• Rolf is working on the front end LSC code. The electronics and software are all just about ready.
• Ben will make mods to the GPS clock drivers.
• Lisa sent back the PC projector for repair under warrantee.
• Digital suspension controllers (Sakata, Goggin, B. Abbott, Heefner)
• Shihori made DTT spectra of all the core optics OSEM sensors, with and without damping on. Three sensor channels looked dead. Ben traced it to the LEMO cables from the whitening boards, and replaced them; this fixed those problems. It's clear from the spectra that work is required to optimize the damping of the test mass optics.
• One OSEM still looks like its not working right: ETMX UR. Ben will check the satellite amplifier.
• Lisa G and Shihori used Mark Barton's method to diagonalize the input matrices for the 5 new core optics. The numbers are all within 25% of 1, and are reproducible from three separate trials. The numbers are now in the screens, and damping works fine. They are now working on the output matrix, using DTT to excite position and watching dataviewer to decouple position, pitch & yaw. They will use DTT to study the couplings of pos,pit,yaw as a function of frequency across the pendulum resonances.
• PSL:
• Osamu and Seiji re-optimized the PMC and FSS gains, now that the FSS pickoff is after the PMC.
• Ben made up and tested two ISS PD boxes and three PD heads.
• Flavio and Ben installed the ISS PDs and electronics in the 40m. The installation is almost done; they need some longer cables for permanent routing. The EPICS crate, database and screens seem to be working. The commissioning of the servo will begin soon.
• Optical levers (Kawazoe):
• Fumiko has zeroed the offsets on all oplev quadrants.
• Fumiko has re-checked her calibration of the oplev response of the 5 IFO optics. She will express it in terms of radians at the optic. She's measuring the optic motion (with damping on and off), as well as detection noise, and comparing it to the region of sensing linearity.
• Next, she will obtain the oplev digital servo filter design used at the sites, implement it here, and commission the oplev servos.
• Ben will change the resistors on the BS and ITMX oplev QPDs.
• Optical sensing (Smith):
• PZT1 STEERING MIRROR: Awaiting repair by Piezojena of the PZT1 pitch amplifier.
• QPD MOUNTS: The QPD boxes were modified and mounted to the rigid electrically isolated table mounts; 2 sets of mounts were missing. Replacement mounts will be ordered.
• Fumiko is beginning to assemble electro-optic shutters for the SP and AP beamlines. We still await one more EOS Q-switch.
• Mike is drawing up the temporary layout of the POX/POY sensing beamlines, for independent arm locking.
• Mike is updating the ACad drawing with the as-modified PSL table.
• Modeling (Miyakawa, Kawamura):
• Seiji is using a Finesse model of the 40m to study lock acquisition. He is studying how the error signals for each of the short length degrees of freedom (PRC/l+, Michelson/l-, SRC/ls) change when other degrees of freedom change (ignoring the arms, for now). He finds that in some cases, there is no decent error signal unless the other degrees of freedom are very close to their in-lock positions. This will make locking the full DRM hard ... as expected. He's thinking about ways to make it work.
• Osamu continues to come back up to speed with E2E/Alfi.
• South Annex Bake Ovens (Taylor):
• While Steve is on vacation (4 weeks!), Bob is doing all of Steve's daily duties: checking the vacuum system and controls, N2 level for the vacuum valves, ion pump V's and I's, and PSL chiller level.
• Bob is doing some bake jobs for Larry Jones.

Bob is working with Caltech electricians to fix the AC to the flow benches.

Thermal Noise Interferometer (Libbrecht)

no report

LASTI (Ottoway)

no report

Data Analysis and Computing (Lazzarini)

Simulation and Modeling (Bhawal)
E2E Weekly Physics Meeting
----------------------------
Luca described details of his recent measurement of WFS signals
(elog Sep22-24). Luca, Matt, Hiro, Virginio and Biplab discussed WFS
measurement results and comparison with e2e simulation.
 

WFS Signals
--------------
(Biplab) As a support to Luca's effort in getting WFS work well for heated
states
      of H1, studied how the signals change if there is asymmetric heating
      of two arms.
      We need to see how the guoy phase rotation and change in demodulation
      phases affect these signals as the interferometer heats up. Developing
      an e2e model for measuring those in a convenient way.
 

FFT
-----
(Hiro) Changed FFT code so that different refractive indexes can be assigned
       to different mirrors. This will be useful for studying effects of
       asymmetric heating in two arms.
 

SimLIGO
----------
(Matt) developed an autolocker that can automatically lock the interferometer
      in any heated state and give the mirror positions.
 

Noise Study
------------
(Hiro) Used part of the SimLIGO SEI/SUS to understand the high noise in
      the SimLIGO best sensitivity calculation.
 

Mechanical Simulation
----------------------
(Virginio)
  - I Finally started the debugging of the new simulation of the quadruple
    pendulum.
  - Improving the state space class for the time domain simulation to be
    included in the  e2e-mse library . Introducing some class members to
optimize
    the calculations for linear time invariant systems represented by the ABCD
    matrices
 

  Biweekly minute of the e2e-mse meeting Wednesday 9/24/30
  participants Hiro, Mark Virginio
 

  Main topic: next steps to implement the time domain simulation of the
  mechanical systems
 

  - Giancarlo is finishing to reimplement  the old mse procedures to compute the
    stiff and mass matrices. Internal modes for wires and blades will be
    simulated with a finite element approach.
  - System identification like strategy applied to the frequency response of the
    mechanical system will be implemented later on
  - I will include the old mse adaptive integration routines in the state space
    class to have wider choice and the possibility to make comparisons
  - Discussed the potential advantages of adaptive methods for controlled
systems.
  - Mark will provide his ABCD matrices of the quad pendulum to feed into the
    state space class.
 

Code development and maintenance
---------------------------------
(Melody, Hiro) Hiro and Melody worked to debug the code to use dynamically
     loaded shared library so that FUNC can use C++ compiled code to speed
     up. At present Melody is doing performance benchmarks and code
     optimization.
 

(Matt) Worked on E2E simulation code, debugging and multi-thread implementation.
 

(Virginio)
  - Submitted the order for 3 new dual xeon 3.06GHz CPU workstation for the e2e
    cluster We will have a total 5 units and 10CPU.
 

Alfi
--------------
(Bruce) Completing parser read and write issues for bundles and bundlers.
 

LIGO Data Analysis System
 

Software Systems (E. Maros for Blackburn)
This week efforts continued with fixing and closing out problem reports. Of the 29 problem reports that were classified to be critical for the next release, 9 remain open, 2 are analyzed, and 2 are in feedback.
 

The control and monitor API was modified to sort the node list, support a compact syntax for specifying ranges of beowulf nodes, correctly display the beowulf node names, and to allow for manual modification of the beowulf node list.
 

All critical problem reports against the frameAPI/framecpp related to creation of RDSs have been addressed. The system is more robust in reporting meaningful errors to the user when error conditions happen. Some of the ambiguities of the frame query option have also been addressed.
 

Efforts continue in finding the causes of the core dumps in the frameAPI. The use of STLport continues to reveal ways of improving the code. In a parallel effort, additional compiler options are being used to gain more insight to potential standard violations.
 

Discovered and fixed a problem with the new C++ implementation of the disckCacheAPI. This issue had the potential of creating a corrupted cache.
 

Work has started on supporting large files. This will allow for files greater than 2Gb in length to be read and for large directories to be searched.
 

In preperation of new database hardware at the sites, testing of data replication between Solaris and Linux DB2 servers was started. Replication is being used since the dump/restore utilities of DB2 generate/use files that store the data in the host's native format.
 

Hardware Systems (Anderson)
Caltech
-------
(Dan Kozak)
 

* Working on bringing the SAM-QFS tape archive system on-line at LLO this week
  as was done at LHO last week.
 

(Hari Pulapaka)
 

* Working on setting up LDR on ldas-test to test the RDS publish program.
  Also using the ldasjob package to submit sql queries to find
  out the locked times of the instrument for publishing the RDS data.
 

* Testing different Condor configurations so that only one cpu is used on
  the nodes, i.e. only one virtual machine is created to run the jobs.
 

* Trying to update the SSH server on ldas-grid to new version.
 

* Was in the midst of trying out the new installation procedure for LDR
  but stopped that to test RDS publishing.
 

(Al Wilson)
 

* Helping LLO with setting up the new metaserver (RH9).
 

* Working with MIT on cloning there "new" nodes to RH9 via systemimager image.
 

* Shannon and I are setting up the backup VPN. Have installed BSD 3.3 only
  on the backup system.
 

* Updated the desktop RH machines with the new SSH security patch.
 

(Stuart Anderson)
 

* Upgraded the main RAID device for the LDAS-CIT system from a 1/2TB T3 to
  a faster 1TB 3510 unit.
 

* Patched the kernel version on the LDAS-CIT beowulf cluster to the
  RH9 kernel planned for the next LDAS release (2.4.20-20.9smp).
 

* Started testing the new dual-Xeon database servers at Caltech.
 

* Fixed problem with NIS+ occasionally locking up a desktop system
  by downgrading the version of portmap to 4.0-19. This bug can
  be triggered at will by running rpcinfo -p hostname from another
  computer.
 

* Found out from Sun that there is no planned support for >1TB files
  on the standard UFS filesystem (though it is supported on SAM-QFS),
  and that there are no current plans for dynamic load-balancing
  being added the the multi-path I/O device drivers--so we will
  keep our current manually load balancing.
 

MIT
---
(Keith Bayer)
 

* Patched ldas-sundev1 and ldas-pcdev1 with OpenSSH patch.
 

* Rebuilt ide raid attached to lancelot DMT machine.
 

* Copying directories back to ide raid array from pcraid.
 

* Moved enoki back to control room.
 

* Working on cluster image replication.
 

Livingston
----------
(Igor Yakushin)
 

* Received the new metaserver. When configuring it, discovered that
  there is a problem installing database administration server under RH9.
  The problem was resolved by Isaac.
 

* Replicated data from Solaris to Linux machine to test that we can
  migrate our old databases to the new Linux metaserver.
 

* LDAS@LLO is down for T3 reconfiguration that should hopefully be
  finished tomorrow.
 

* Fire suppression system was installed in LDAS room last week.
  Currently the work is under way to put tiles back on the ceiling and to
  clean up the remaining mess.
 

Hanford
-------
(Greg Mendell)
 

* Finished the reconfiguration of the T3 disks at LHO with Dan Kozak and
  Ben Johnson.  The new filesystems /frames, /samrds, and /samraw were
  created, which replace /frame10, /frame11, /frame12, /frame20, /frame21,
  and /frame22 on ldas, fb3, fortress, sand, and stone.
 

* CDS/DMT data now resides under /frames.  The CDS fb3 full frame data is
  under /frames/full-frames (with 5.7 days lookback).  The CDS fb3 second
  trends are under /frames/trend-frames.  The CDS fb3 minute-trends are
  under /frames/minute-trend-frames.  The DMT trends are under
  /frames/minute-trend-frames/DMT.
 

* RDS data and other processed data from LDAS is now archived under the
  SAMFS filesystem /samrds. Thus, the S2 RDS data at LHO is in the Data
  directories here:
 

  /samrds/rds1/S2/LHO/
  /samrds/rds2/S2/LHO/
  /raid1/rds/S2/LHO/ (Still mounted as /frame30/rds/S2/LHO/ on fortress)
 

  Raw data from CDS/DMT not processed by LDAS will be archived under the
  SAMFS filesystem /samraw.
 

  Note that under SAMFS, it is transparent to the user of the "ls" command
  whether data under /samrds and /samraw is on disk or tape. Beyond "ls",
  if you run any command that accesses the data under these filesystems
  and it is on tape only you will get the message "file temporarily
  unavailable on the server, retrying...."  Normally the data will
  automatically be staged from disk to tape in a few minutes and your
  access to the data will complete.
 

(Ben Johnson)
 

* The three filesystems /frames, /samraw, /samrds have been made at
  LHO. Mostly accomplished by Dan Kozak and Greg Mendell.
 

* Received Sun 280R ldas/gateway server. Planning on installing a video
  card and dual 2Gb HBA (from Sun E450 metaserver), when downtime permits.
 

* The new x86/Linux metaserver has passed memtest86 after 120 hours.
 

* Two more LDAS monitoring computers have been set up, for a total of
  3, in the control room. All are on the GC network.
 

Data Analysis Activities (Lazzarini)
 

Charlton:
* Continued testing of RDS creation tools for S3 and RDS MDC. Found some
minor bugs which have been fixed. Have now produced all Level 2 RDS for S2
(AS_Q, DARM_CTRL and EXC channels for all IFOs merged into 16-second
files). Over the weekend I will be producing Level 3 RDS for S2 (AS_Q
only, UNMERGED).
 

Mendell:
1) Working to fix memory leaks in
lal/packages/tools/test/LALIndependentTestDetResponse, an independent
test of the LAL functions that return F_+ and F_x before the Oct 1 LAL
code freeze. This is the highest priorty right now.
 

2) Submitted to lalwrapper the initial verion of the stack-slide search
code. Currently it only stacks power from SFTs. We are still working to
implement sliding.
 

3) Worked with LDAS to verify bugs have been fixed in I/O of SFTs.
 

Reilly:
I spent a lot of my time this week doing
some administrative tasks (updating my CV,
writing letters, etc.).  I have also been working
to get the stochastic web page online at Caltech
but I have hit a few snags there, so expect it
won't be ready till next week. I think that I have
finished the tcl scripts we will need to run the
stochastic analysis and I hope to start running
the S1 analysis using the new dso this weekend.
 

Shawhan:
* Studied veto conditions and data quality flag correlations for inspiral
event candidates found in the S2 playground data.  Modified the 'ivana'
program (which evaluates prospective veto conditions) to add new features.
 

* Read entire burst paper draft and sent comments.
 

* Worked on planning signal injections and reduced data sets for S3.
 

Weinstein:
- Reviewing and implementing comments to S1 burst paper
- made a large number of ilwd files containing
  burst waveforms for burst finding tuning and efficiency
- Working on waveforms for hardware injections
 

Yakushin:
1) All my problems with the parallelized version of waveburst turned out
to be NFS problems (Masha helped me to figure it out): if one does not
rename a new version of DSO, it is not guaratanteed that NFS cached
images would be refreshed at the nodes. Now waveburst runs great.
2) Working on more accurately using calibration information inside
waveburst and simplifying the output format.
 

General Computing (Wallace)
MIT:
(Keith)
-Repatched PC and reinstall software
-Patched all gc computers with new version of OpenSSH
-Investigating NIS+ troubles
-Added several new users to system (Lindy Blackburn, Katherine Rawlins)
 

Livingston:
(Shannon)
Nothing to report.
 

Hanford:
(Christine)
- Helped Carol and Terry G. get started using the Calcium web calendar
software.
- Mounted new directories on fortress from ldas for RDS data and frames.
- Misc. other user support.
- Most of the week has been spent writing epics software for laser power
controls and atomic clock/GPS time differences.  This code needs to be
done before the freeze on Oct.1.
 

CIT:
(Veronica)
- LIGO website: Converted an image for a newspaper publisher to a
high-resolution version suitable for printed media. Updated various pages
throughout the website. Preparing a write-up of meetings logistics.
- CaJAGWR website: Updated the seminars schedule webpage.
- LSC website: Helped Kaice in setting up a webspace for the stochastic
group. Similar migrations may need to be done for other upper limits
groups; added directories for them at the LSC webserver. Posting the
belated August meeting's presentations. Started working on the webpages
for the upcoming November meeting.
 

(Mike)
-Ghosted multiple users this week that included Janeen Romie, Larry Jones,
Helena Armandula, Cindy Akutagawa, Mike Smith, Paul Russell, and Jim Covington.
-Tried to get an updated ghost image from Calum's computer but the hard
disk on his computer has multiple bad sectors. Ghost image failed. I have
contacted Calum and mentioned to him to backup his local data. I will have
to replace this drive before it gets worse and it will no longer boot.
-Worked on the Optics Lab workstation. This included flashing the BIOS,
reloading the Operating System and adding some additional hardware. I also
had to reinstall all General Computing Software plus some additional
engineering packages. I have taken this computer back down to the optics lab.
-Worked on the third floor doing maintenance on the printers, replacing
toner cartridges and cleaning out the filters/rollers to minimize paper
jams. These printers are getting real worn out.
-Helped Ed Chargois take over an RMA big iron switch to transportation.
-Loaded an updated computer to upgrade one of our lab computers for Peter
King. I need to load a few engineering packages then I will be ready to
swap there old computer out.
-Loaded an updated computer for the 3rd floor of W/B. This going to be the
replacement workstation that has the scanner and CDRW/DVD - or + RW
installed on this unit. I still need to pull off the old data and load
drivers for the scanner.
-Loaded a new laptop that is assigned to Linda Turner, but came across a
problem trying to ghost this laptop. I spent many hours trying to get a
backup of this computer but it seems that the internal gigabit network card
that comes installed with this unit is not compatible with the ghosting
software. I still have to finish loading GC software and transfer over her
old data to the new laptop.
-This week I had a lot of user support that included printing, networking,
e-mail, software and some hardware issues that have been resolved.
 

(Lisa)
- Finished upgrading alterf to solaris 9.
- Prepared to upgrade acrux and becrux to the latest version of sendmail.
Looked into the smtp-auth feature (sasl).  I don't think we should try to
implement it at this time.
- Still trying to get people to use secure connections for their e-mail.  We
setup tunnels and ssl for people here, but they forget they need to configure
for encryption at home as well.  There is also a growing group of folks
connecting from linux who continue to have problems.
- Redesigned the GC FAQs and began updating the information.
- Worked on internal GC documentation.
 

(Larry)
-This has been a real heavy week for procurement related items. Most of the
procurements have been for other groups.
Presently, checking up on a couple of contracts and the GC SATA raid system,
that should have arrived by now.
-Worked with Mike on a number of PC issues. We delivered three units to John Z.
for his use and replaced a couple of other units.
Spent time repair printers. As Mike mentioned, they are getting plenty of use.
-Lisa and I have spent a number of hours going through the e-mail logs checking
for false-positives and getting in more items to be filtered out. This will be
an ever going process.
-Worked on a number of document issues. Still going over the security plan and
updates for the Computer Use Policy. Also, updated a functional diagram for the
server room.
-Worked a couple of network issues. Mostly monitoring the new equipment to make
sure they are not having any problems.
-Helped out the DCC with a few items.
-The usual user support. Updating of accounts and related items.
-Just as a note, it has been decided that there will be more emphasis on making
sure all of the MS computers have up to date patches and virus definitions on
the virus-scan s/w. We are also going to have a firewall program installed on
all of the loaner computers.
 

Advanced LIGO Development (Shoemaker)

For additional information about this report, contact sanders@ligo.caltech.edu