The LIGO Executive Committee is cancelled because of the Staffing Committee meeting.
As most of you already know, our Advanced LIGO proposal went to the
National Science Board for its approval at its last meeting.
After last week’s report was posted, I received word that Advanced LIGO has
received approval from the Board, and will now go into the NSF budget plans.
The future is still not completely certain, since NSF funding is always determined
by Congress on a year-by-year basis, but this represents a major milestone for
Advanced LIGO.
The Livingston interferometer locks during the
day and through the train! Another
indication that HEPI is working as planned.
Minutes of LSC Executive Committee meeting
Friday 15 October, 1130 Eastern 0830 Pacific
Attendance: Bruce Allen, Barry Barish, Patrick Brady, Sam Finn, Joe Giaime,
Albert Lazzarini, Dave Reitze, Keith Riles, Peter Saulson (minutes), David
Shoemaker, Daniel Sigg, Ken Strain, Rai Weiss, Stan Whitcomb, Benno Willke, and
guest Laura Cadonati.
Announcements
* Alicia Sintes has proposed hosting a future LSC meeting at UIB, Mallorca.
(She specifically proposed November 2006.) Members asked a few questions about
airfares and flight availability. Those questions have been forwarded to
Sintes. After they are answered, the LSC Exec Comm will decide whether to
accept her offer.
* Patrick Brady asked for suggestions for speakers at the focus session that he
will chair at the April APS meeting. There will be 3 talks, 1/2 hour each, on
the subjects of commissioning, data analysis, and Advanced LIGO.
* Sam Finn announced the dates for the GravStat conference to be held at the
Center for Gravitational Wave Physics at Penn State: Thur - Sat 19 - 21 May,
2005.
* Barry Barish reported that the case for Advanced LIGO was presented to the
National Science Board on 13 Oct. If it is approved, then LSC members should
stay tuned to help in a coordinated education effort about Advanced LIGO.
(N.B.: Since the meeting, Stan Whitcomb shared the good news from Michael
Turner that Advanced LIGO was indeed approved by the NSB. Let me add my
congratulations to everyone who helped make this milestone possible, and my
encouragement to everyone whose future hard work will make Advanced LIGO a
reality.)
Proposed revisions to Publication Policy
Dave Reitze introduced proposed new language for the authorship section of the
Publication Policy. One new provision describes when a paper's author list has
grown large enough that the entire LSC author list should be substituted. This
section got general assent from members. Another provision described under what
circumstances a data analysis methods paper should use the full LSC author
list. The proposed distinction was whether or not the paper used new science
data, as yet not the basis of any published analysis paper. Discussion focused
on the definition of science data (Science Mode, from a Science Run, ...) Dave
took note of the issues, and promised to come back with a new version of the
proposal. The new language will be proposed to the Council at the March 2005.
DASWG Software Requirements Document
Patrick Brady presented the Software Requirements Document developed by the
Data Analysis Software Working Group. Some sections of the document had been
approved by the LSC Exec Comm in a previous meeting, but the document has now
been filled out with a detailed discussion of Quality Assurance practices for
analysis software. The LSC Exec Comm voted to approve the document.
AURIGA/LSC Joint Working Group White Paper
Laura Cadonati introduced the White Paper produced by the AURIGA/LSC Joint
Working Group. It proposes a strategy for joint data analysis of LIGO and
AURIGA data taken during S3. (When the GEO/LIGO MOU revisions are signed, then
GEO data would be included as well.) Members asked about the level of effort
that would be put into the joint work. On the AURIGA side, the major effort
will be carried by two graduate students, guided by G. Prodi and L. Baggio,
among others. From the LSC side, the team includes Laura, Patrick Sutton, Siong
Heng, Michele Zanolin, and Warren Johnson; a commitment of 40% of Laura's time
forms the foundation of the effort. David Shoemaker asked if the scientific benefits
would be worth the effort. Laura replied that beyond the outcome of the search
itself, development of network analysis techniques was quite worthwhile. Sam
Finn urged us to think beyond bilateral agreements and instead build an
infrastructure for true network analysis. Barry pointed out that before a
publication, we'd expect software from both sides to be thoroughly reviewed.
David asked if the AURIGA side understood the LSC review process and
publication procedures; Laura said they did.
After this discussion, the LSC Exec Comm voted 10-0 (with to abstentions) in
favor of accepting the White Paper, thus giving the OK to joint analysis of S3
data.
Discussion of Tania Regimbau's relation to LSC
We discussed various options for Tania Regimbau's relationship with the LSC
once she takes her new position at Nice. The LSC Executive Committee felt that
it would be impractical to have Tania Regimbau continue with her LSC
membership. However, we hope that this does not mark the end of our work
together with her on the search for gravitational waves. We hope that we will
shortly hear from the Virgo leadership that they are interested in exploring
the possibility of collaborative data analysis with the LSC in the area of
searches for a stochastic background. We would welcome an in-depth technical
exploration of this topic, with the outcome being a proposal to add this
subject to the range of topics included in joint data analysis between Virgo,
LIGO, and GEO. One particular possibility, given the distance scales involved,
might be a search based on correlations between Virgo and GEO600, but all
possibilities ought to be explored.
STATUS OF LSC MOUs
(Petrac)
(LSC Research Plans through February 2005 and Progress Reports through
August 2004)
ACIGA
Caltech-CEGG
Florida
GEO
Goddard
IAP
Louisiana School of Math, Science, and Arts (LSMSA)
Loyola
LA Tech
LSU
NAOJ-TAMA
Rochester
Washington State
Orsay Group
VIRGO
EGO
SITE TELECONFERENCE (Jasnow)
A site teleconference was held on Thursday, October 21,
2004. The following issues were among those discussed:
PROPERTY MANAGEMENT (Chargois)
>From: Ed Chargois <chargois_e@ligo.caltech.edu>
DOCUMENT CONTROL CENTER (Turner, Mak)
>From: Linda Turner - turner@ligo.caltech.edu>
>From: Cleveland Mak <mak_c@ligo.caltech.edu>
COST SCHEDULE CONTROL SYSTEMS (Cunningham,
Brambila, Kaufman)
>From: Esther Cunningham <esther@ligo.caltech.edu>
>From: "Brambila, Ruth" <Ruth.Brambila@caltech.edu>
>From: Florence Kaufman <fkaufman@ligo.caltech.edu>
Financial reports can be found at: http://docuserv.ligo.caltech.edu/~fireport.
(For passwords contact Florence)
SUBCONTRACTS MANAGEMENT (Petrac, Jasnow,
Salone)
>From: irena@ligo.caltech.edu (Irena Petrac)
MIT
>From: Ed Jasnow <jasnow@ligo.caltech.edu>
>From: Gina Salone <gsalone@ligo.caltech.edu>
SUPPORT (Baldon, Kammerling, Lloyd)
>Irene Baldon
>Sharon Kammerling
>Dorothy Lloyd
PROPOSALS and REPORTS (Lindquist)
Schedule of proposals and reports planned for the remainder of the calendar
year.
CHANGE CONTROL/CONTINGENCY MANAGEMENT
(Lindquist)
HUMAN RESOURCES (Akutagawa)
>From: Cindy Akutagawa <cindy@ligo.caltech.edu>
Quality/Safety (Tyler)
>From: Bill Tyler <tyler@ligo.caltech.edu>
Nothing significant to report.
Summary of Commissioning
Activities at LIGO Hanford Observatory (Landry)
DMT shakedown mini-run M5 begins at LHO Friday Oct 22nd noon PDT, running until
midnight Saturday PDT. DMT authors are flying in to test new code while
LHO staff run and review the monitors.
Commisioning highlights from the past week are detailed below.
4K IFO
-----------
Noise in the 1-3Hz band produced by the Hanford DOE Integrated Disposal
Facility dig is upconverted into the GW band. Using both a mechanical shaker
(sealed car battery on a spring) and AWG (digital waveforms from the control
room), injections
were made to simulate this noise. It is suggested that upconversion
witnessed on the 4K IFO was not due to DARM or optical lever servos, nor
optical gain modulation due to angular disturbances of the optics. The
mechanism for upconversion remains a mystery. Supsensions & seismic
are still not vindicated.
Given ASPD4's peak-to-notch ratio was poor, ASPD4 and 5 were tuned and swapped,
and their respective RF phases were set.
In the latter link, note that there is some evidence of renewed phase noise,
this time in glitch form(!).
The old output mode cleaner (OMC) from GEO had been removed from the dark port;
the newly designed replacement OMC has been assembled in the optics lab and installed
(but not illuminated) on ISCT4. The basic properties of the OMC are
greatly improved.
The filter cutoff of the DARM loop was moved
from 1kHz to 4kHz (permitted by recently installed DACs), resulting in 11
degrees more phase margin at 180Hz. Thus the unity gain frequency of the
loop can be moved as high as 420Hz - no improvements in the spectrum yet, but
further studies are underway.
Now that balanced transformers have been installed in the end stations, 60Hz
noise was remeasured in EY, with mixed results - three times better than
previous, but still three times worse than old measurements in EX.
High frequency glitches observed previously were confirmed to be generated by saturations
of the current shunt.
The 4k received new status
screens.
2K IFO
------------
Restoring the WFS to good working condition first meant setting
the LO phase and the location of Gouy phase telescope on ISCT10. Weekend
operation still had WFS difficulties until some apparent clipping at a 1"
pickoff was eliminated. Next, and AM laser was employed to characterize
WFS3-5. Later, a correction to a lens position yielded good results
as all WFS loops were closed.
SM2 was observed to be poorly diagonalized and injecting
oscillations at pitch, yaw and (in particular) the 1Hz pendulum
frequencies. SM2 and MC1 were thus better controlled by diagonalizing
drives, reducing
motion of the reflected MC beam. Side motion of MC1 may be still be
inadequately controlled.
Optical levers have been misbehaving
for some hundred days. Glitches were characterized
by their average deviations over time, indicating some of the worst offenders
(H1 OLs were later shown to be better behaved). EPICs calc records were
added to monitor
oplev performance. The worst case ETMX (and later, ETMY) oplev was
swapped out, with others to follow. Studies are underway (including a comparison
to LLO) to determine why our newer optical levers appear to be failing at a
rate faster than earlier models.
******************BREAKING NEEWS*********************
L1 with HEPI has now demonstrated weekday daytime locking. L1 also stayed
locked through a railroad train passage for the first time.
********************************************************
The HEPI system is still not completely commissioned, but with just 3
chambers fully isolating so far, the interferometer's immunity to previously
crippling seismic conditions is already dramatic.
The HEPI actuators' enhanced range also enabled a successful test of new tidal
control topology, which should even further extend the lock times. This
mechanism was installed as part of a comprehensive CDS software and hardware
upgrade, which brought L1 up to date with new features developed on H1 and also
gave some processing time headroom to improve reliability.
Also notably, the L1 WFS system has now locked all degrees of freedom
(again). Although this milestone was reached before, significant RF
hardware problems prevented reliable WFS operation for S3. We are now fairly
confident these hardware problems have been resolved, and expect the WFS to
prove robust and reliable for S4.
Noise is not quite on the map yet, but with reinstallation of the main AS port
diodes and auxiliary shutter hardware this week, the push is on.
L1 Intereferometer Commissioning (Frolov)
----------------------------------------------------------------------
IFO Locking and Sensitivity:
- After tunning the lock acquisition and ifo loop gain settings the
robust night time locking was achieved. The possibility of the day time locking
was also demonstrated. The tidal feedback allows several hour long lock
stretches.
- The common mode loop was engaged for the first time since the electronics was
relocated from the LVEA.
- The AS port detection PD2 and 3 were reinstalled after 2-omega notches were
added and PD's were tuned for the high power operation.
- The darm noise floor moved to ~1e-17m/rt Hz at 200 Hz.
Angular Control:
- WFS electronics was retested, two cables repaired.
- All angular control loops were closed. In addition to the setting of the WFS
phases and gains, the lens in front of the WFS4 was moved to make the sensing
matrix closer to diagonal.
- The BS centering servo hardware and software was tested but the loop has not
been closed yet.
PSL work:
- The Mode Cleaner UGF was set to 50kHz with the new FSS
- The power out of the laser amplifier has gone down by a factor of 2 over last
several month. Attempts to use the remaining power more efficiently by
increasing the PMC transmission (now ~60%) have not yet succeeded.
HEPI Commissioning (O'Reilly)
----------------------------------------------------------------------
ETMX,ETMY and ITMX are fully isolated and work robustly. Work is continuing on
ITMY and the HAM chambers. Recent changes to the code have allowed us to
implement a feedback-only tidal servo (although we do have hooks for the
feedforward). Last night (see ELOG) the IFO held lock during a train. With the
current incomplete configuration we are also able to lock during the day.
Most of our hardware problems seem to have been resolved. We had a leak at the
Y end station which caused that pump to shut down. This leak has been fixed
(some clamps needed tightening). There is no evidence of any time-dependent
deterioration in the valve performance and all piers now have a good working set.
We changed out two geophones on ITMY and BS today. We have enough spare
sensors, valves and accumulators. Broken ones have been returned to their
respective manufacturers for repair.
We continue to monitor accumulator pressures, there are still significant leaks
(order 10 to 15 psi per week), but we have sent some of the worst examples to
the manufacturer and are waiting to hear back.
Livingston Outreach (Thacker)
---------------------------------------------------------------------
John is attending Inquiry Workshop for Science Center Educators this week
Preparing for Louisiana Science Teachers Association conference next week (as
an exhibitor) and LA GEARUP conference next week (presentation)
Safety & security (Zucker for Riesen, Evans)
---------------------------------------------------------------------
Rich is just back from jury duty.
Tom handled two laser safety trips; one was another training session
demonstration in the HPLF, the other was a hardware shutter trip in the PSL.
The latter was another instance of a problem with the anti-passback logic
programmed into our system; Rich Riesen has explored this and found the logic
rules are inconsistent between various access points. We've authorized changes
to the software to make all the access points behave consistently and (we hope)
reduce the false alarm incidence.
AdL and LIGO 1 Mechanical Engineering (Spjeld)
---------------------------------------------------------------------
- reviewed BSC LOS installation tooling with Gary Traylor and Joe Hanson
- clarified specification details to potential UHV oven manufacturers
- high res. photo rendering of LLO layout 3D-models for museum exhibition
- concept design of HEPI compatible lifting fixture for HAM chamber doors
- design review and project planning of new LOS installation tooling for AdL
- BOM for supports and assembly procedure for the photon calibrator shelf
CDS Software (Parameswariah)
---------------------------------------------------------------------
Rolf's visit last week brought us lot of changes. Now we have gain ramping on
all the systems - lsc, asc, sus, hepi. The medm screens for lsc and hepi have
been updated to have the ramp time field and the indicator to show gain
ramping. In process, medm screens for sus and asc.
Two new processors were put in the corner station suspensions for RM/BS and
ITM. These are VME linux processors that boot off of a boot server in the mass
storage room. Installed a linux box to act as boot server in the MSR. Redbook
updated to restart the VME linux processors. Still to do instructions to
restart the bootserver.
Fast processors on the suspensions were moved to hepi in the corner. Thsi
helped bring down the CPU time on hepi, especially on hepi1 which was at the
edge.
Investigated the crash of the two new processors and found the epics value
entered exceeded the floating point max value of 1.7e38. Rolf is fixing his
code to limit the max value that the fornt end sees to 1e20.
Pentek fanout died on Monday in the End station suspension processor. Replaced
it with a new rev.
General Computing (Roddy)
---------------------------------------------------------------------
The main thing of significance is that there has been an account compromise at
LLO. I have spent the last three days investigating a password
compromise. It will probably take another couple days to go through all
of the machines that were compromised and make sure that there was not any
additional damage/compromises. One machine will have to be rebuilt or
replaced. I also installed special security software, which is what
tipped me off to the compromise.
Data analysis (Yakushin)
---------------------------------------------------------------------
LDAS admin:
Received two tape drives and small FC switch.
Data analysis:
1) Together with Sergey I am looking into a bug in waveburst v5 hrss
reconstruction that was discovered during the burst f2f meeting at MIT last
week. We believe that we found and fixed the problem. I am testing now whether
the bug is really fixed.
2) Made better pictures for hrss reconstruction in S2 paper.
3) Sent Erik some corrections to S2 paper.
HPLF, L1 Commissioning, and AdL Modeling (Franzen)
---------------------------------------------------------------------
1) Have been working with Evgeny Kamenetskiy, Andrey Shaykin and Viktor
Zelenogorsky in the HPLF on measuring depolarization of a 100 W beam passing a
TGG crystal. These data will be used for design of a passive compensation
system of thermal distortions in an AdLIGO Faraday Isolator. Later in the week
David Reitze joined the experiments.
2) During the design of the HEPI blending and control filters of the ITMY and
BS it was discovered that two of the geophone sensors are not working
correctly. These two detectors have now been replaced (ITMY V2 and BS V4). We
need to redo the SYS-ID for these two sensors.
3) Am still having some problems to create a new AdLIGO Mode Cleaner model
using Melody. Looking for bugs together with Amber Lynn Bullington.
CDS software (Khan)
---------------------------------------------------------------------
1) Implemented the WFS Autocentering scripts.
2) Updated the filter file for the ASC servo.
3) Adding enhancements to the beam centering servo, as per request from Andri
see also the CDS weekly meeting minutes in the commissioning archives:
Rolf Bork reporting
- Spent past week at LLO working on HEPI software (see LLO elog entries). At the same time upgraded two corner station large optic controller processors to new 2.2GHz units and took their older processors and put them into HEPI1&2. Also, updated all front end software for the new gain ramping features.
- Coded and installed a new Tidal servo at LLO (see Rana's elogs). This involved code changes to LSC, ETM controllers, and HEPI.
- Working on new watchdog software for HEPI. I am presently testing this at Caltech for installation at LLO soon.
- Alex at MIT this week installing data acquisition front end and new HEPI.
Ben Abbott reporting
RFPD Redesign:
1) The PC boards arrived today from PCB express. A prototype will be stuffed starting tomorrow, and tested.
2) All of the parts are here for the prototype so the stuffing should go smoothly.
ISS:
1) Six ISS PDs have been stuffed with their electronics, tested, and shipped to LHO.
2) One ISS PD that was not working well was repaired, and shipped back to LLO.
no report
PeterKing
Fabrication of the latest revision of the table-top intensity stabilization servo is complete. The servo has been through the draft test procedure, which was based on the pre-production model. There are a few minor differences between the pre-production model and the latest revision. However all the functionality and transfer functions are consistent with the pre-production model.
At present I am completing the paperwork for the test procedure results. The unit should ship out to LHO tomorrow (Thursday) afternoon.
Mike Smith
The technical note: T040204-00, Astigmatic Spot Size in the Power-Recycling Cavity Caused by BS Curvature is not yet complete; I am adding the calculation of the combined Michelson spot size, and adding a summary of the observations made at the sites.
Ken Mailand, Phil Willems
The laser chiller first article should be complete today, Phil Willems may test it tomorrow, with the electronics, if everything goes well we can ship to LHO.
Lee Cardenas, Liyuan Zhang
OTF Lab. (W. Bridge)
The chamber has two samples, white Ceramabond, and disks of TRA-BOND #2254
color light brown epoxy. Cavity is locked.
This chamber has been operating for 16 weeks already
We'll continue taking measurements everyday. No Change
Absorption Test Measurement prototype in standby
Scatterometer system in Standby
We have completed the scanning of The Inner test mass 2ITM04 fused silica
mirror.
Waiting on a new test mass mirror.
The Quantronix 60 watt laser No Change
OTF Lab at Lauritsen ROOM 38
No Change
Cavity #3
Chamber is pumping with (6) disks of TRA-BOND #2151 color blue epoxy and
(4) disks of TRA-BOND #2902 color silver epoxy. The cavity is
locked.
This chamber has been operating for 14 weeks already!
We'll continue taking daily measurements.
Cavity #2 in standby
We have gathered all the necessary components to set up a new and very
clean
chamber with a new contamination cavity.
waiting on the old chamber that was taken for cleaning and bake.
Automated locking, reacquisition, and logging are now working. The duty
cycle is relatively low, in the absence of human intervention, because SAC
tends to get "stuck" and not pass through resonance after it falls
out of lock. If somebody is there to manually adjust the dc offset in the OSEM
controller, the system will recover and automatically lock in short order.
We have started planning for testing new coatings as well. The first step in
this project is to have one of our two sets of fused-silica mirrors repolished,
in preparation for getting the newly-developed coating. Helena and GariLynn are
looking into quotes for this.
LASTI Weekly Report (Allen,Heefner, Ivanov,MacInnes, LaLiberty,Mason,
Mittleman, Ottaway,Sarin)
HEPI VME and DAQ
With invaluable help from Alex and Jay who were here this week, the upgrade of
the LASTI CDS VME control system was finally completed this week. All the
cables missing after the last incomplete upgrade attempt of a few weeks ago
were in hand this time around, and they were installed. we checked all the
sensor inputs and drive outputs and they seem to function fine. Internal
details of the HEPI software remain to be checked (all filters switching etc),
but since the HEPI software is identical to what's running at LLO on a daily
basis, the prospects of the software checking out ok are excellent.
Data viewer and dtt tools were also upgraded
High Bay Preparation and Vacuum System
We took apart the prototype quadruple pendulumn, it now has to get packed up.
The LASTI vacuum system is now under vacuum.
I have been taking triple measurements for Luarent, did a complete set at
atmoshperic pressure, will now repeat under vacuum.
We moved the second dSpace system onto the mid-Y HAM chamber, which should be
running again shortly, I'm waiting for quiet times in the High bay to take
measurements
Simulation and Modeling
(Bhawal)
Analysis of H1 Phasecamera pictures
--------------------------------------------------------------
(Biplab) Started decomposing phasecamera images recently (elog Sep 29) taken by
Luca and Keita at dark port of the H1 interferometer into Hermite-Gauss
eigenmodes (in astigmatic basis) upto 4th order (15 modes). Basically the
picture is fitted to an expression having 19 parameters. This analysis will
provide better insight into the content of individual sideband light.
FFT study of mirror phasemaps
------------------------------------------------------------
(Biplab) - Studied the cause of drop in carrier recycling gain by about 20%
from the case without any phasemap to the case in which all phasemaps are
included. FFT studies indicate that End mirror maps are mainly responsible for
this. Probably that is why FFT results show that the presence of phasemaps do
not affect sideband recycling gain. The statistics of the end mirror maps are
not significantly different from those of other maps. The mechanism behind this
drop in recycling gain (the arm gain remains same though) is still to be
understood.
Alfi
------------------
(Bruce) Making adjustments and improvements to the user interface for selecting
parameters to include in box settings.
(Melody) Continuing modifications to display the FUNC_X variables in a
friendlier user interface. Currently working on the simple view
which parses the C++ code in the MemberDecl primitive setting. Working on
saving the setting values correctly.
Data Analysis Activities (Lazzarini for all of LIGO Lab.)
Laura Cadonati:
I have been preparing CorrPower for review of the r-statistic portion, to be
used in the S3 analysis. I found a bug in the calibration routine, such that
the alpha/beta coefficients were not correctly assigned, and re-run the
S3-waveburst analysis after fixing it. The r-statistic analysis of waveburst
triggers over MDC simulated frames (sine gaussians, gaussians, B.L. white
noise, supernovae inspirals, cusps, whistles) is now completed. I am also
working on addressing the reviewers comments to the S2 burst paper.
Junwei Cao:
Work carried out in this week:
- DMTOffline packaging using Autotools
Still in the process of getting familar with Autotool macros
- CondorView for LSC cluster monitoring:
Condor@MIT upgraded to 6.6.6 (together with Keith)
CondorView client installation on ldas-gridmon.mit.edu
- GridFTP test against LSC grid machines:
Inital tests against ldas-grid.ligo.caltech.edu show a maxmium data
transfer rate ~5M Bytes per second. Data transfer rates against ligo-wa
and ligo-la are at the same scale (~5MB/s).
Work planned in next week:
- Write initial scripts for DMTOffline packaging
- Solving the network configuration problem at the CondorView server
(together with Keith)
- Detailed results on GridFTP tuning
Creighton:
Prepared a talk on gravitational-wave astronomy for the Chinese-American Frontiers
of Science Symposium.
Also started looking at some floating-point precision issues in tdfilters
package in LAL.
Erik Katsavounidis:
Continued working on S2 burst paper. Discussed with Zanolin, Finn and Stuver
how comparative studies of the burst ETGs should proceed.
Mendell:
1) I have updated independent tests of F_+ and F_x that occur when "make
check" is run during the build of LAL. The independent code uses the
formulas in Jaranowski, Krolak, and Schutz gr-qc/9804014, Eqs. (10)-(13), and
the LAL code uses the Maple Work sheet formulas, available from here:
http://www.phys.utb.edu/UTBRG/activities/papers/#UTBRG-2001-01.
Everything works just as well now as I have reported at LSC meetings in the
past. The absolute maximum difference between the two methods is never
more than a few times 1.e-4. Note that Dave Chin has test functions in LAL that
are also extensive; the purpose of the tests I have in LAL are to have checks
that are independent of any functions in LAL. Thus, to close a few more
loopholes along these line, I have made the following changes. 1) I have added
a shell script to LAL that runs the independent test for LHO, LLO, and GEO for
37,000+ times between Aug 1 2002 and Dec 31 2004, and arbitrary sky positions
and orientation (polarization) angles. 2) I now use a LAL independent function
to convert GPS time to mean sidereal time. 3) The tests now include GEO. 4) The
independent code no longer uses any LAL constants. 5) The independent code no
longer uses LAL cached detectors, though the numbers used are not independent
of LIGO, but come from LAL for GEO and from DCC T980044-08.pdf and
T980044-10.pdf for LHO and LLO, which agree with what is in LAL and in the raw
LIGO frames to floating point accuracy. Code
location in LAL: CVS/Root =
:pserver:username@gravity.phys.uwm.edu:2402/usr/local/cvs/lscsoft,
CVS/Repository = lal/packages/tools/test, files =
LALIndependentTestDetResponse.c, LALIndTestDetRes.sh,
indTestDetResGEO.cfg, indTestDetResLHO.cfg, indTestDetResLLO.cfg
2) I am writing a simple function called LSCsegFind for use by online analysis
scripts that will return science mode segments obtained from a web page
(produced by Peter Shawhan's conlogger script in the control room and/or by the
DMT).
Shawhan:
* I have been testing the Einstein@home search and screen-saver software on
Linux and Mac computers, plus the web interface for the project.
* I tracked down a problem which prevented the LDAS-CIT system from accessing
data in the Caltech data archive.
* I have also been working on the S2 untriggered burst search paper.
Sutton;
My main activity this week was to get an updated draft of the LIGO-TAMA S2
bursts paper released to the bursts group and TAMA. Otherwise, I have
been working on MDC frame production for the LIGO-GEO and LIGO-AURIGA
analyses. I've run into several technical problems that Stuart Anderson
and others have helped me with, and hope to have the first frames ready in the
next few days.
Michele Zanolin:
-oct 16/17 partecipated ligo-virgo f2f (presentation
on how to compare ETGs)
-spent time in writing a single-IFO-matched-filter ETG
as reference to existing ETGs (under testing).
-worked on the debug of the stand alone parameter
estimation module.
-discussed with S.Finn and A.Stuwer about possible coordination
of the ETG-comparison efforts.
-discussed with Patrice Hello on the final ETG independent
parameterization for the ETG comparison in LIGO/VIRGO.
-adapted the h_rss estimation part of the p_estimation module
to be used in AURIGA and to test the non linearity
between H1 and H2 S3 estimates by WB (these two test are still
to be performed).
Yakushin:
1) Together with Sergey I am looking into a bug in waveburst v5 hrss
reconstruction that was discovered during the burst f2f meeting at MIT last
week. We believe that we found and fixed the problem. I am testing now whether
the bug is really fixed.
2) Made better pictures for hrss reconstruction in S2 paper.
3) Sent Erik some corrections to S2 paper.
Lazzarini: working with Frtischel, Romano to draft S2/S3 stochastic paper.
LIGO Data Analysis System
Software Systems (Maros for Blackburn)
LDAS
CreateRDS
The base code for supporting creation of RDSs with multiple frames per file and
the ability to specify the number of seconds for the output frames has been
committed to CVS. New test code is being developed to test this functionality.
It currently does test the new cases and does an end-to-end test with the final
result being PASS or FAIL. This needs to be integrated into a make system-check
target to be run each week with the regular system testing.
Control And Monitor
Work within the client continues to support the viewing of mount points in as a
directory tree (PR2150).
Work is also being done to display all log information. Currently there is a
corner case when the logs are being rolled over that causes messages to be
missed. A fix is being tested tandem-iii and ldas-dev.
diskcacheAPI
After upgrading the SAM-QFS software, it was noticed that the diskcacheAPI on
ldas-dev did not properly report all information available on the SAM-QFS
partition (/archive). It has been tracked down to all scanning threads being
blocked as a result of the file system being unmounted. PR2722 has been opened
with the details of the problem. Informational log messages are being created
to increase the visibility of this issue.
managerAPI
The portMsg procedure within the genericAPI has been modified to prevent it
from hanging until TCP/IP timeout due to being connected to a poorly handled
socket (PR2723).
Testing
The system tests were run against version 1.2.39 and the results posted to the
LDAS web pages.
Two new test scripts were created. The first validates the binary distribution
of lsync (PR2718). The second test runs createRDS commands in a paced manner
(vs. sequential). This test has been created to help in isolation of the memory
leak in the frameAPI.
LDCG Software
The sinstall rules for several software packages were updated. This brings them
in line with the versions manually installed on ldas-dev.
TCLGLOBUS -- ITR2003
The SWIG wrapping and testing of the Globus XIO vector read and write routines
(globus_xio_readv() and globus_xio_writev()) is now complete. The test program
used to verify the non-vector read and write routines has been expanded to test
these new functions.
The test_gram.tcl script has been modified to automatically start and stop the
gatekeeper needed for the test. This is part of the effort to make all testing
self contained to allow for automated testing each night.
Instructions on how to acquire certificates has been added to the tclglobus web
page.
Doxygen was investigated as tool for providing documentation for the functions
being exposed to the TCL scripting language. The investigation shows it
insufficient for this task as it really only wants to parse and output C/C++
constructs. Two other tools are now being investigated; Natural Docs and
ROBODoc.
Hardware Systems (Anderson)
Caltech
-------
(Dan Kozak)
* Worked with Sun (1-800-USA-4SUN & Arlo Ruiz) on getting replacements for
bad 3510 controllers that we got as a result of the recall of the
revision
we had (that had been working fine in the production system). We
received
one DOA, one with "under voltage" conditions right out of the
box and two
that seem to be the cause of numerous (so far) retryable errors on the
/archive filesystem. Am completing testing of the replacements
today and
will be installing two of them in the production system if all goes
well.
Have learned a bunch about 3510s during this:
* How to use multiple ports on one or two controllers.
* That only one Ethernet port is active at a time on a
dual controller system.
* That only one controller in a dual controller system is
active at a time (the other is for failover).
* Discovered the new SAM-QFS archive.cmd options "-startage" and have
tuned it's value on ldas-archive to get us larger tar archives on tape
(ongoing).
* Supported the LHO upgrade of SAM-QFS.
* Flagged a failing T3 controller at LLO.
(Hari Pulapaka)
* Working on transferring C02_LX data.
* Getting familiar with the new Ganglia release.
* Adding new users to the CIT cluster and also made some changes to the
adduser script to handle ldas-pcdev2.
* Made changes to the LDR setup to add Birmingham LDR to the access
control list.
* Also, trying to make some modifications to the publishing script.
(Al Wilson)
* Installed additional 200GB drives in the test cluster.
* Check for disk errors on node2 in the test system. Found none, returned
to service.
(Stuart Anderson)
* Testing the upgraded SAM-4.2.2 system at Caltech. Successfully read
and verified ~20TByte of data.
* Tracking arrival of recently large computer equipment orders.
* Debugging problem with the diskcacheAPI when one of the filesystems
is unmounted.
* Started discusions about expanding computer floor space at Caltech.
MIT
---
(Keith Bayer)
* Updated credentials on all ldas / condor machines.
* Updated condor to v6.6.6.
* Installing condor view service in addition to ganglia.
Livingston
----------
(Igor Yakushin)
* Received two tape drives for L700 archive robot and small FC switch.
Hanford
-------
(Greg Mendell)
* LDAS at LHO will archive the raw frame data from the upcoming M5
mini-run Fri Oct 22 and Sat Oct 23 2004. Reduced data sets using the S3
level 1 and level 3 channel list will be generated.
(Ben Johnson)
* Received 5 3511's, 2 T9940B's, and 35 SATA disks. The 3511's have
been racked and all HDDs installed. 4 of the 5 3511's are building RAID
volumes; just to exorcise any blatantly bad disks.
* Upgraded gateway, dataserver, fb1, and fb0 to SAM/QFS 4.2.2, along
with the prerequisite patches etc.
* Replaced bad disk in t3-8.
* Attempting to get StorageTek to fix a stuck 9940B tape drive. HL0640
is presently stuck in drive 42.
* Big Brother@LHO is now checking for the sshd procs on the nodes
instead of just pinging them.
General Computing (Wallace)
MIT:
(Keith)
-Patched several Solaris 8 machines
-Patched several windows boxes
-Investigating new projector purchase for lab
-Helped setup for VIRGO face2face meeting
-Continued work on control room computer setup
Livingston:
(Shannon)
-The main thing of any significance is that there has been an account
compromise at LLO. It will probably take another couple days to go through all
of the machines that were compromised and make sure that there was not any
additional damage/compromises and that a root level compromise did not
happen. One machine will have to be rebuilt or replaced.
-Installed a new monitoring software package.
-Working with Larry and others on documentation.
-Working with Christine and Larry on some router programming issues.
Hanford:
(Christine)
CIT:
(Veronica)
- LSC website: Updates to the upcoming meeting website. Updates to the
Papers Under Review website and usual upkeep.
- LIGO website: Updates to various parts. Updates to the roster database.
Prepared a high-resolution image for a printed publication. Updates to
the websites for the upcoming PAC and NSF Review meetings. Started
working on the webpages for the Aspen Winter Conference.
- CaJAGWR website: Updates and user support.
- Project Science: Updates to the last workshop website.
(Mike)
-I ghosted two new Dell workstations. This turned out to be a project trying to
get ghost to work with the new integrated NIC cards that Dell is pushing out. I
had to put a call to Symantec, for updated patches to load on our enterprise
ghost server.
-NTSRV: I swapped out a 160 GB hard disk with new 250GB drive, to gain
additional disk space on the ghost server. This server was maxed out of disk
space.
-I loaded a loaner laptop with GC software and installed service pack 2 for XP.
Ed Chargois is sending this laptop out to MIT for the LSC conference.
-Finished loading a pc, to setup a visitor's workstation in Bridge Annex.
-Loaded three pc workstations for Sharon Kammerling, Cleveland Mak and Irene
Baldon. I have also swapped these users out with their new workstations.
-Phil Willems: I loaded a loaner laptop for him with all GC software and a few
engineering packages.
-Other onsite/phone support, that included installing additional software,
printing, and OS issues.
(Lisa)
- Spent most of the week continuing the work on the server room security audit.
- Continued user support
Mail Stats 10/14 - 10/20/04
Messages Accepted:
Spam Rejected:
Viruses Rejected:
False Positives:
Total Mail Thru:
(Larry)
-Still spending time with purchase related items. Having problems getting
invoice documentation from a data storage company. Finally got a few items
returned, there were problems getting them picked up. The replacement Foundry
switch arrived. A number of Dell computers arrived and will be distributed out
next month with a couple of exceptions which Mike has taken care of. Getting
contract information together for SUN and Foundry. Also, checking on a couple
of the s/w contracts that need to be renewed in the near future. Still no word
back on the IDEAS contract.
-Working with campus and others on security related items. Mainly sharing
information. Campus has started blocking a number of problem locations.
-Worked a couple of mail issues. In one case, we were able to track the
problems down and notify the ISP of a problem on a mail relay server they were
supporting. The others were mostly client configuration issues.
-Worked with a number of people on the stolen notebook computer. All of the
appropriate groups were notified. Also, Ed Chargois will have a supply of computer
locks for anyone needing one. Those working in offices with multiple people
should have one for their notebook computer since they don't have control over
keeping the room locked. However, everyone with a notebook computer is
encouraged to get a lock for their unit.
-Finally, got a little time to work on some documentation for Albert.
-Worked on a couple of system cleanups. A couple of accounts have been taken
care of. Added a few more accounts with a number of new ones needing to be
added.
-Working with Christine and Shannon on a couple of router issues.
-The group as a whole is doing a number of things related to security and
documentation.
(Bruce Sears)
-Ilog Development:
- Researching and implementing a
method of improving search speed for
large logs such as the
Hanford detector log.
From: "Thomas Frey"
<tfrey@ligo.caltech.edu>
Progress Period from 10.14 to
10.21
On Vacation on Oct. 18
and 19
·
·
See http://www.ligo.caltech.edu/~tfrey/index.html for a
complete listing of all project related cost and schedule data.
Accomplishments:
·
·
Sub-system
PLANNING activities
§
§
Continued work on preparing web space for posting Adv. LIGO reports.
("The Whole Enchilada")
§
§
Continued the input of changes / preparing RFIs / responding to RFIs, as
a result of the meetings with Carol and the Subsystem Teams. (SEI, LDAS, and
40-Meter remain to be completed)
§
§
Finished work on the progress schedule update with progress through
§
§
Sent out progress data requests for progress data through
·
·
ROSTER DATABASE:
§
§
Continued to work with Irena to provide Barry with information regarding
FTEs and Institutions.
§
§
Assisting Irena as needed on record changes.
§
§
Meeting with Stan and Irena to discuss how bounced emails are handled.
·
·
COST BOOK DATABASE:
§
§
Posted revised cost data as a result of the meetings with Carol and the
Subsystem Teams. (SEI, LDAS, and 40-Meter remain to be completed)
From: Larry Jones <ljones@ligo.caltech.edu>
Advanced LIGO Seismic Structure
SEI Structure:
ASI continues to develop the updated estimate of cost and schedule for our
current contract, as well as a cost and schedule that they will be proposing
for changing the task to a fixed price contract. They are scheduled to present
these on Oct 22.
We are in the process of updating the current contract regarding price, scope
and details. We're also updating the design requirements to reflect changes
that we've made since the last revision in May 04.
Actuators:
Nothing new.
Displacement Sensors:
ADE is proceeding with fabricating and testing the 14 displacement sensors
for the BSC prototype structure. They have provided a quote for two calibration
blocks.
Accu-Glass is proceeding with fabricating and testing the 3 feedthrough flanges
for the BSC chamber at LASTI, with 16 feedthrough fittings each.
Seismometers:
Nothing new.
Galling/Dusting Test:
Nothing new.
Other:
Ken Mailand and Larry Jones met with Mike Mize and Brian Adam of NTS to
discuss the air bake of the BSC prototype parts that are too large for LIGO
personnel to process. These total 21 pieces of 12 different parts, with mass
totalling over 3700 lb. Several problems exist having to do with maintaining
cleanliness, size and processing/handling, which are not insurmountable. Mike
is developing a ROM (rough order of magnitude) cost for our budgeting purposes
for this task.
Accu-Glass has given estimates for cabling for our in-vacuum needs.
From: Janeen Romie <romie_j@ligo.caltech.edu>
AdLIGO Suspensions
Working on quad structure design and analysis with the design team.
Planning a trip to LLO to work with Oddvar and Ken Mason on the installation
fixtures designs on OCt 28 & 29. We will have a meeting on Monday at
Had a meeting with Bob Taylor, Helena, Dennis and Calum about the cleaning
requirements and processes for the big sections of the quad structure. Working
my actions from that meeting.
Participated in Dennis's Advanced LIGO Staging, Assembly and Installation
telecon.
Reviewed and redlined the Drawing Rquirements document.
Working with Luke Williams about height adapters for the IO optics.
Working on actions from Carol's discussion about suspension walkdown
requirements.
Initial LIGO Suspensions
Went out for quote for spare quartz wire standoffs. Betsy informed me that
they were low at LHO.
Gin Gin
Working a customs issue with Ed Chargois.
From: Helena Armandula
<ahelena@ligo.caltech.edu>
Adv. LIGO SUS
Generated a generic silicate bonding procedure. It should guide and allow anybody
to make a silicate bond. It is ment to fulfill one of the PDR requirements for
silicate bonding.
Sheila Rowan will be reviewing it before it gets placed on the DCC.
From: Bill Kells
<kells@ligo.caltech.edu>
With respect to LIGO I performance (and implications for AdL) we continue
deriving a correct interpretation of the HR surface scans (done in OTF at 1064
nm) for scatter defects. We have no exact comparision (for the particular test
optic: 2kITM04, which has never seen ifo beam).
In association with this a new round of "as built" 4k ifo FFT runs
have been performed (Biplab B.). These seem to give a somewhat different
accounting for the various interferometer effective losses (this in comparison
with the first round of "as built" FFT results of ~ 1 1/2 year ago.
Now mirror aberrations seem to play a substantial role (previously it appeared
that the net loss was essentially dominated by the "prompt" point +
micro-roughness scatter). We are puzzling over this change.
From: Michael Smith <smith@ligo.caltech.edu>
ADV LIGO
Thomas has input the AOS cost data, and I am in the process of reviewing the
AOS cost book.
For additional information about this report, contact whitcomb_s@ligo.caltech.edu