ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
1296
|
Thu Feb 12 11:21:54 2009 |
Yoichi | Update | LSC | Locking effort resumed | Last night, I restarted the locking work.
Quite some time was wasted by the disconnected
REFL199 by Alberto for the cavity length |
|
1298
|
Thu Feb 12 17:43:33 2009 |
Yoichi | Update | LSC | SRC strangeness solved | I found the problem with the DRMI lock I had
last night was caused by the zero gain in
the PD11_I filter.
|
|
1301
|
Fri Feb 13 13:35:38 2009 |
Yoichi | Update | LSC | Locking status | Yoichi, Jenne, Alberto, Rob
Last night, the locking proceeded until the |
|
1305
|
Sun Feb 15 09:35:00 2009 |
Yoichi | Update | LSC | Locking status | [quote]
I found a '$<' in the offloadMCF script.
I don't know precisely what that construct |
|
1309
|
Mon Feb 16 14:12:21 2009 |
Yoichi | Update | LSC | FE system rebooted | [quote]
I can't restart the MC autolocker on c1susvme2
because it doesn't let me ssh in. I tried |
|
1310
|
Mon Feb 16 15:54:07 2009 |
Yoichi | Update | Computers | medm directory wiped on nodus | [quote][COLOR=red][B]I accidentally did an
'rm -rf' on the medm directory in nodus[/B][/COLOR],
instead of on my laptop as was intended.
|
|
1316
|
Tue Feb 17 05:20:11 2009 |
Yoichi | Update | LSC | Locking | Since we excluded *.snap and *.req files from
the svn control in the medm directory and
these were not restored by the svn co, the |
|
1317
|
Wed Feb 18 03:17:40 2009 |
Yoichi | Update | LSC | Locking | Yoichi, Kakeru,
Last night, the cm_step script failed at |
|
1318
|
Wed Feb 18 03:25:25 2009 |
Yoichi | Update | Computers | medm directory back | I restored the medm directory from the backup
on the tape.
The directory had an svn property svn:ignore |
|
1323
|
Thu Feb 19 04:16:17 2009 |
Yoichi | Update | LSC | Locking status | Rob, Yoichi
We checked the CM-MC cross over just before |
|
1325
|
Thu Feb 19 16:29:43 2009 |
Yoichi | Update | Computers | Martian wireless router bad | The Martian wireless router is dead.
I rebooted it several times, but it hangs
up in a minute.
|
|
1329
|
Fri Feb 20 03:52:23 2009 |
Yoichi | Update | Locking | Locking Tonight | Yoichi, Peter
Tonight, we had a problem with the DD hand |
|
1330
|
Fri Feb 20 19:31:16 2009 |
Yoichi | Update | LSC | MICH low gain problem | Last night, we found that MICH UGF was too
low. Even after re-aligning the PDs, it was
still too low.
|
|
1334
|
Tue Feb 24 02:23:40 2009 |
Yoichi | Update | Locking | Locking - MC board bad | Rob, Yoichi, Alberto, Kiwamu, Kakeru
We found that the OMC alignment feedback |
|
1336
|
Wed Feb 25 03:10:24 2009 |
Yoichi | Update | Locking | Locking status | Rob, Yoichi, Kakeru, Kiwamu
Tonight, CARM -> MCL hand off was not stable. |
|
1338
|
Thu Feb 26 00:36:53 2009 |
Yoichi | Summary | Computers | C1:LSC-TRX_OUT broken (and fixed later). | Today, Kakeru tried to convert C1:LSC-TRX_OUT
and C1:LSC-TRY_OUT to DAQ channels.
He edited C1LSC.ini in the chans/daq directory |
|
1339
|
Thu Feb 26 01:24:44 2009 |
Yoichi | Update | Computers | Martian wireless is back | Today, a new wireless router arrived.
I configured and installed it. Now the martian
wireless network is back.
|
|
1340
|
Thu Feb 26 19:20:08 2009 |
Yoichi | Configuration | General | ETMX camera centered. POX, POY PDs centered | Alberto, Yoichi
We centered the ETMX camera.
|
|
1341
|
Thu Feb 26 19:59:23 2009 |
Yoichi | Update | Locking | Daytime locking | Osamu, Yoichi
We tried locking today from about 2PM.
|
  |
1342
|
Thu Feb 26 20:09:32 2009 |
Yoichi | HowTo | Computers | SR785 python scripts now produce plots | I updated the python scripts to remotely perform
measurements with an SR785.
Now these scripts can plot the results immediately |
|
1344
|
Mon Mar 2 03:57:44 2009 |
Yoichi | Update | Locking | Sunday night locking | Tonight's locking started with a boot fest
of the FE computers which were all red when
I came in.
|
|
1346
|
Mon Mar 2 21:16:32 2009 |
Yoichi | Update | Locking | Low-gain High-gain PD switching may not be working well | Osamu, Yoichi
This afternoon, I run the locking script |
|
1350
|
Tue Mar 3 19:26:44 2009 |
Yoichi | Update | Locking | Low-gain High-gain PD switching may not be working well | I checked the switching of the QPDX from high
gain to low gain.
Switching happens as expected, but the low |
|
1351
|
Tue Mar 3 23:59:26 2009 |
Yoichi | Update | Locking | Low-gain High-gain PD switching may not be working well | [quote]I checked the switching of the QPDX
from high gain to low gain.
Switching happens as expected, but the low |
|
1352
|
Wed Mar 4 03:37:51 2009 |
Yoichi | Update | Locking | Low-gain High-gain PD switching may not be working well | [quote]
This sounds like the QPD whitening gain sliders
may be stuck. The slider twiddling script |
|
1353
|
Wed Mar 4 03:50:17 2009 |
Yoichi | Update | Locking | Still won't go above arm power 10 | Yoichi, Kentaro
The IFO still loses lock at around arm power |
  |
1356
|
Wed Mar 4 17:59:14 2009 |
Yoichi | Configuration | Computers | ezca tools and tds tools work around | Some of ezca commands and tds commands sporadically
fail with a segmentation fault on linux machines.
As far as I know, ezcawrite, ezcastep, ezcaswitch, |
|
1361
|
Thu Mar 5 05:07:09 2009 |
Yoichi | Update | Locking | Wednesday night locking | Tonight, I was having a problem with the PO_DC
hand-off.
It fails most of the time.
|
 |
1364
|
Fri Mar 6 05:44:14 2009 |
Yoichi | Update | Locking | Locking distracted by the QPD whitenning problem again | Tonight, I was able to ramp up the arm power
to around 20. Then the DARM loop started
to oscillate and the IFO lost lock in a few |
|
1365
|
Fri Mar 6 15:23:39 2009 |
Yoichi | Update | Locking | Locking distracted by the QPD whitenning problem again | By looking at the time series of DARM signal
at the time of a lock loss, the oscillation
frequency was about 3.5kHz (see the attm1 |
 |
1366
|
Fri Mar 6 18:14:58 2009 |
Yoichi | Update | Computers | awg not working | Starting from this afternoon, the awg is not
working.
I rebooted FE computers, c0daqawg as well |
|
1367
|
Fri Mar 6 18:22:42 2009 |
Yoichi | Summary | Computers | Scripts to restart the FE computers | While doing locking, the FE computers are
overloaded sometimes and I have to reboot
them.
|
|
1368
|
Fri Mar 6 18:26:37 2009 |
Yoichi | Configuration | Computers | ezca tools and tds tools work around | I updated the wrapper scripts so that they
do not retry more than 6 times.
Otherwise, the wrapper scripts loop over |
|
1369
|
Sat Mar 7 16:50:25 2009 |
Yoichi | Update | Computers | Not even data retrieval working | Now our digital system is really in trouble.
We can't even get data from tp channels.
|
|
1374
|
Mon Mar 9 12:04:18 2009 |
Yoichi | Update | Computers | TPs and AWG are back | I had to do one more reboot of tpman and daqd
to get the TPs working.
I confirmed the alignment scripts run fine.
|
|
1380
|
Mon Mar 9 23:13:22 2009 |
Yoichi | Update | Computer Scripts / Programs | tdsdata doesn't work |
|
|
1382
|
Tue Mar 10 04:55:41 2009 |
Yoichi | Update | Locking | Locking: 3.7kHz large oscillation | Yoichi, Jenne, Alberto,
As I reported on the last Thursday, there |
    |
1388
|
Wed Mar 11 16:53:48 2009 |
Yoichi | Update | Locking | Junks in around kHz | Rana, Yoichi
Last night, we tried to find out the source |
 |
1390
|
Wed Mar 11 22:57:48 2009 |
Yoichi | Update | Locking | Calibrated XARM error signal spectrum | I did a rough calibration of the XARM error
spectrum.
See the attached calibrated spectrum.
|
|
1393
|
Thu Mar 12 02:18:42 2009 |
Yoichi | Update | Locking | MC_I spectra (RF_AM) | I took several spectra of MC_I signal (see
attm1).
|
 |
1394
|
Thu Mar 12 15:57:53 2009 |
Yoichi | Update | IOO | MC drift is terrible | Yoichi, Osamu,
Last night's locking work was totally interrupted |
 |
1395
|
Thu Mar 12 18:44:02 2009 |
Yoichi | Update | PSL | MZ aligned | The MC lost the alignment somehow this afternoon.
So I thought it was good time to touch the
MZ because I had to align the MC using the |
|
1396
|
Thu Mar 12 18:48:37 2009 |
Yoichi | Update | IOO | MC aligned but ... | After the MZ alignment, I aligned the MC with
the periscope mirrors.
It looked like the MC mis-alignment was mainly |
|
1399
|
Fri Mar 13 05:16:21 2009 |
Yoichi | Update | Locking | Locking update | Yoichi, Osamu,
With adjustments of the loop gains during |
 |
1400
|
Fri Mar 13 19:26:09 2009 |
Yoichi | Update | DMF | seisBLRMS compiled | I compiled seisBLRMS.
The tricks were the following:
(1) Don't add path in a deployed |
|
1401
|
Fri Mar 13 20:23:37 2009 |
Yoichi | Update | LSC | AO path transfer function with X-arm locked | I measured the AO path transfer function while
the X-arm is locked with the POX PDH signal.
The POX-I signal was already connected to |
|
1402
|
Fri Mar 13 22:07:14 2009 |
Yoichi | Update | Locking | Calibrated XARM error signal spectrum | Of course I made a mistake.
I put a pole at 1525Hz whereas it should
have been a zero.
|
|
1406
|
Mon Mar 16 12:26:59 2009 |
Yoichi | Configuration | IOO | MC1 drift | There seems to be a large drift of MC1 even
when there is no WFS feedback.
The attached plot is an example a 20min trend. |
|
1408
|
Tue Mar 17 08:44:37 2009 |
Yoichi | Configuration | IOO | MC1 drift | I'm done with the MC1 drift measurement.
The result is attached. It is clear that
MC1 is in trouble. The small drifts in the |
|
1409
|
Thu Mar 19 02:45:36 2009 |
Yoichi | Configuration | IOO | A loose wire found for MC1 | I found a loose connection of a wire in the
cross-connect between an ADC and the MC1
coil driver's UL bias input.
|
|