| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
11323
|
Sun May 24 14:45:02 2015 |
Koji | HowTo | General | How to launch StripTools at specified locations | LLO Operator Tips:
koji.arai@cr9:/opt/rtcds/userapps/trunk/asc/l1/scripts/initial_alignment$
cat autostart_strips.sh |
|
|
11324
|
Tue May 26 11:05:10 2015 |
Steve | Update | PEM | worked around ETMY seism. | The cable tray holder cross beam is removed
and cut short for good access to seismometer. |
|
|
11325
|
Tue May 26 19:57:11 2015 |
rana | Update | Computer Scripts / Programs | ifoCoupling | Looks like a very handy
code, especially with the real statistical |
|
|
11326
|
Wed May 27 02:53:57 2015 |
ericq | Update | General | ifo recovery log | Given my suspicion of fault with the X
Green BBPD, Koji generously provided me with
another one that he had confirmed to be working. |
|
|
11327
|
Wed May 27 15:20:54 2015 |
ericq | Update | Computer Scripts / Programs | Chiara Backup Hiccup | The local chiara backups are still failing
due to vanished source files. I've emailed
Max about the summary page jobs, since |
|
|
11328
|
Wed May 27 17:14:08 2015 |
ericq | Update | LSC | X Aux Laser crystal temperature changed | Rana suspects that the lack of X beatnote
is related to the PSL laser temperature change
(ELOG |
|
|
11329
|
Thu May 28 10:42:19 2015 |
Steve | Update | PEM | bad Guralp X-cable |
|
|
|
11330
|
Thu May 28 15:10:44 2015 |
rana | Update | PEM | Seismic Confusion | You are plotting the STS channels,
not Guralp. These are for the Trillium
240 seismometer. |
|
|
11331
|
Thu May 28 16:43:52 2015 |
Steve | Update | PEM | Guralps swapped | Koji and Steve,
The result: bad Guralp x-arm cable.
I will swap the short cables tomorrow |
|
|
11332
|
Thu May 28 17:00:04 2015 |
Koji | Update | IOO | FSS SLOW not engaged: is this intentional? | I found that FSS SLOW servo is not engaged.
Is this intentional test to keep the NPRO
temp constant? |
|
|
11333
|
Thu May 28 17:12:32 2015 |
ericq | Update | IOO | FSS SLOW not engaged: is this intentional? | Yes, I had turned it off while looking
for the PSL/X AUX beat, and forgot to turn
it back on. |
|
|
11334
|
Thu May 28 21:10:46 2015 |
Koji | Update | Green Locking | ALS-X noise hunting | I have been looking at the X-end ALS setup.
I was playing with the control bandwidth
to see the effect to the phase tracker output |
|
|
11335
|
Fri May 29 02:05:08 2015 |
ericq | Update | LSC | End Laser temperatures set | Both
green beatnotes have been found with nominal
amplitudes. (X: -30dBm Y: -20dBm), at temperatures |
|
|
11336
|
Fri May 29 11:28:42 2015 |
ericq | Update | Computer Scripts / Programs | Chiara Backup Hiccup | I've changed the chiara local backup
script to read a folder exclusion file, and
excluded /users/public_html/detcharsummary, |
|
|
11337
|
Fri May 29 12:49:53 2015 |
Koji | Update | Computer Scripts / Programs | Chiara Backup Hiccup | In fact, the file access is supposed to
be WAY faster now than in the RAID case.
As |
|
|
11338
|
Fri May 29 15:12:39 2015 |
Koji | Update | Computer Scripts / Programs | Chiara Backup Hiccup | Actual data |
|
|
11339
|
Mon Jun 1 08:32:14 2015 |
Steve | Update | SUS | PRM damping restored | Local earthquake 3.8 Mag tripped only PRM
Vac monitor is not communicating.
PSL HEPA turned on |
|
|
11340
|
Mon Jun 1 10:26:53 2015 |
ericq | Update | CDS | RCG Upgrade Imminent | We
are planning on upgrading the 40 CDS system
to the latest version of the LIGO RCG software, |
|
|
11341
|
Mon Jun 1 15:22:19 2015 |
Steve | Update | PEM | Guralps X- short cable is bad |
|
|
|
11342
|
Mon Jun 1 20:05:36 2015 |
rana | Update | CDS | RCG Upgrade Imminent |
|
|
|
11343
|
Tue Jun 2 21:22:07 2015 |
rana, koji | Configuration | IOO | AOM inserted in beam and aligned | We
spent an hour today to put the AOM back in |
|
|
11344
|
Wed Jun 3 11:55:52 2015 |
Steve | Update | Optical Levers | PRM-BS oplev | I'm getting ready change the Newport
Ultima U100-AC to SS-Polaris-K1
LOW DRIFT MIRROR MOUNTS |
|
|
11345
|
Wed Jun 3 17:04:08 2015 |
ericq | Update | PEM | Wilcoxon Accelerometer Huddle Test | I've set up the Wilcoxon accelerometers
on the SP table for a huddle test, to estimate
their noise levels. |
|
|
11346
|
Fri Jun 5 11:59:59 2015 |
ericq | Bureaucracy | General | Maintenance Tasks, IFO upgrades | At wednesday's
meeting, Rana, Koji, Steve, and I started
making a list of maintenence tasks that should |
|
|
11347
|
Mon Jun 8 15:51:31 2015 |
ericq | Update | CDS | RCG Diagnostics | I've started making some model changes
for RCG diagnostic tests.
I put some blocks down in C1TST |
|
|
11349
|
Tue Jun 9 10:57:12 2015 |
Steve | Update | SUS | BS oplev laser tuned | Lenses removed from oplev beam path at
elog entry 11246
|
|
|
11350
|
Wed Jun 10 02:50:39 2015 |
ericq | Update | PEM | Wilcoxon Accelerometer Huddle Test | Here are some results for the 3-corner
hat subtraction for the six accelerometers,
from ~1 hour of data that didn't |
|
|
11351
|
Wed Jun 10 03:19:58 2015 |
ericq | Update | LSC | AUX PDH error measured in CDS | Looking over the old noise budget in the
green locking paper, it seems the main technical
noise sources were the AUX PDH error and |
|
|
11352
|
Wed Jun 10 15:54:14 2015 |
Steve | Update | VAC | Vacuum comp. rebooted | Koji and Steve succeded rebooting C1vac1,
C1vac2 and pressure reading is working now
More tomorrow ......... |
|
|
11353
|
Thu Jun 11 19:40:59 2015 |
Koji | Update | VAC | Vacuum comp. rebooted | The serial connections to the vacuum gauges
were recovered by rebooting c1vac1 and c1vac2.
Steve claimed that the vacuum screen |
|
|
11354
|
Fri Jun 12 08:40:17 2015 |
Steve | Update | VAC | Vacuum comp. rebooted | Koji and Steve,
One computer expert and one vacuum
expert required. |
|
|
11355
|
Fri Jun 12 17:09:58 2015 |
ericq | Update | LSC | Beatbox needs whitening gain | Short entry just to preview a new development;
more detail about this investigation will
soon follow. |
|
|
11356
|
Sat Jun 13 18:37:46 2015 |
ericq | Update | LSC | Beatbox needs whitening gain | Here are the promised details!
I was worried about the lack of
whitening gain, as I saw that the DC phase |
|
|
11357
|
Sat Jun 13 23:52:14 2015 |
ericq | Update | LSC | Beatbox needs whitening gain | Nice find!
We ought to use our noise model
of the ALS signal chain to determine what |
|
|
11358
|
Mon Jun 15 11:54:44 2015 |
ericq | Update | CDS | Parts not in SVN | I ran the following command to find which
models/parts are not under version control,
or have modifications not commited: |
|
|
11359
|
Mon Jun 15 16:55:39 2015 |
ericq | Update | PEM | Accelerometers installed | The accelerometers have been installed
at MC1 and MC2. MC2 data is live, I haven't
yet run the cables from the MC1 set to the |
|
|
11360
|
Mon Jun 15 20:36:48 2015 |
rana | Update | IOO | IOO QPDs centred | after re-aligning the beam into the PMC,
I touched up the steering mirros into the
IOO QPDs so that the beams are now centered |
|
|
11361
|
Mon Jun 15 22:36:40 2015 |
rana, koji | Update | Green Locking | BeatBox Assay: not looking good | Because the ALS beatbox schematic is out-of-date
and misleading, we pulled the box to photograph
the current implementation and figure out |
|
|
11362
|
Wed Jun 17 15:31:50 2015 |
ericq | Update | PEM | Accelerometers fully installed | MC1 accelerometer has been plugged in.
The modecleaner locking has been intermittent
today, but I looked at a 15 minute lock in |
|
|
11363
|
Fri Jun 19 01:24:26 2015 |
rana, koji | Update | Green Locking | BeatBox Assay: not looking good | We had decided a few days ago, to bypass
the IF part of the BeatBox board and put
some of the Haixing Maglev generic filter |
|
|
11364
|
Fri Jun 19 01:55:35 2015 |
ericq | Update | Green Locking | BeatBox Assay: not looking good |
|
|
|
11365
|
Fri Jun 19 03:00:56 2015 |
ericq | Update | CDS | Library Model Parts examined | All simulink diagrams being used at the
40m are now under version control. I have
compiled, installed, and restarted all current |
|
|
11366
|
Fri Jun 19 16:54:20 2015 |
Jenne | Update | Computer Scripts / Programs | Wiener scripts in scripts directory | I have put the Wiener filter scripts into
/opt/rtcds/caltech/c1/scripts/Wiener/ |
|
|
11367
|
Sun Jun 21 13:21:03 2015 |
rana | Update | PEM | Wilcoxon Accelerometer Huddle Test | To improve our sensor
noise estimate, the ACC cables should
be clamped using a rubber pad and a big dog |
|
|
11368
|
Mon Jun 22 12:57:09 2015 |
ericq | Summary | LSC | X/Y green beat mode overlap measurement redone | I took measurements at the green beat setup
on the PSL table, and found that our power
/ mode overlap situation is still consistent |
|
|
11369
|
Mon Jun 22 14:21:42 2015 |
Steve | Metaphysics | Treasure | Jenne and Den graduated | Last supper before departing at "Grazie"
El Portal. All the best on your journey! |
|
|
11370
|
Mon Jun 22 14:53:37 2015 |
rana | Summary | LSC | X/Y green beat mode overlap measurement redone |
Why is there a factor of 20 power
difference? Some of it is the IR laser power
difference, but I thought that was just a |
|
|
11371
|
Mon Jun 22 20:59:19 2015 |
ericq | Update | LSC | DFD Delay length | I've been thinking a bit about what
the ideal cable length / delay time for the
upgraded ALS beatbox should be. Here are |
|
|
11372
|
Tue Jun 23 11:18:20 2015 |
Steve | Update | PEM | cleaning around chambers | Keven is our regular janitor is out for
a few weeks.
The sub is careful- gentel Mario. |
|
|
11373
|
Wed Jun 24 08:05:43 2015 |
Steve | Update | PSL | laser turned on | The laser went off around 11am yesterday.
It was turned on |
|