| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
4124
|
Fri Jan 7 12:01:39 2011 |
Osamu | Update | Computers | c1lsc running | I got a new adapter board for expansion
chassis from CDS and exchanged the existing
adapter board which was laid on the floor |
|
|
4158
|
Fri Jan 14 17:58:50 2011 |
Osamu | Configuration | General | Standalone RT setup | I'll be gone to Hanford site next
week and come back to Caltech on 24th's week.
I setup a standalone RT system at |
|
|
4201
|
Tue Jan 25 20:42:46 2011 |
Osamu | Update | Green Locking | Slow servo for green laser | I implemented a slow servo for green laser
thermal control on c1scx.mdl. Ch6,7 of ADC
and ch6 of DAC are assigned for this servo |
|
|
4214
|
Thu Jan 27 21:10:47 2011 |
Osamu | Update | 40m Upgrading | Calibrated noise of green | I calibrated noise spectrum of green lock.
1. Measurement of conversion factor
of ADC input from V to ct: |
|
|
12469
|
Mon Sep 5 19:57:24 2016 |
Osamu | Update | SUS | OSEM adjustments | Hi 40m people,
As Rana is saying, the bounce mode
does not matter, or we cannot do anything. Generally |
|
|
4985
|
Mon Jul 18 21:06:32 2011 |
PSL Table Guardian | Omnistructure | PSL | Don't leave the PSL table open, unattended!!!!!!!!!!!!11111 | I found the
PSL table left open, and unattended again. |
|
|
15693
|
Wed Dec 2 12:35:31 2020 |
Paco | Summary | Computer Scripts / Programs | TC200 python driver | Given the similarities between the MDT694B
(single channel piezo controller) and TC200
(temperature controller) serial interfaces, |
|
|
15957
|
Wed Mar 24 09:23:49 2021 |
Paco | Update | SUS | MC3 new Input Matrix | [Paco]
Found IMC locked upon arrival
Loaded
newest MC3 Input Matrix coefficients using |
|
|
16152
|
Fri May 21 12:12:11 2021 |
Paco | Update | NoiseBudget | AUX PDH loop identification | [Anchal, Paco]
We went into 40m to identify where
XARM PDH loop control elements are. We didn't |
|
|
16156
|
Mon May 24 10:19:54 2021 |
Paco | Update | General | Zita IOO strip | Updated IOO.strip on Zita to show WFS2
pitch and yaw trends (C1:IOO-WFS2_PIY_OUT16 |
|
|
16176
|
Wed Jun 2 17:50:50 2021 |
Paco | Update | Equipment loan | Borrow red cart | I borrowed the little red cart 🛒
to help clear the path for new optical tables
in B252 West Bridge. Will return once I am |
|
|
16180
|
Thu Jun 3 17:49:46 2021 |
Paco | Update | Equipment loan | Borrow red cart | Returned today.
|
|
|
16219
|
Tue Jun 22 16:52:28 2021 |
Paco | Update | SUS | ADC/Slow channels issues | After sliding the alignment bias around
and browsing through elog while searching
for "stuck" we concluded the ITMX |
|
|
16234
|
Thu Jul 1 11:37:50 2021 |
Paco | Update | General | restarted c0rga | Physically rebooted c0rga workstation after
failing to ssh into it (even as it was able
to ping into it...) the RGA seems to be off |
|
|
16248
|
Thu Jul 15 14:25:48 2021 |
Paco | Update | LSC | CM board | [gautam, paco]
We tested the CM board by implementing
the high bandwidth IR lock (single arm). |
|
|
16254
|
Thu Jul 22 16:06:10 2021 |
Paco | Update | Loss Measurement | Loss measurement | [yehonathan, anchal, paco, gautam]
We concluded estimating the XARM
and YARM losses. The hardware configuration |
|
|
16257
|
Mon Jul 26 17:34:23 2021 |
Paco | Update | Loss Measurement | Loss measurement | [gautam, yehonathan, paco]
We went back to the loss data from
last week and more carefully estimated the |
|
|
16266
|
Thu Jul 29 14:51:39 2021 |
Paco | Update | Optical Levers | Recenter OpLevs | [yehonathan, anchal, paco]
Yesterday around 9:30 pm, we centered
the BS, ITMY, ETMY, ITMX and ETMX oplevs |
|
|
16267
|
Mon Aug 2 16:18:23 2021 |
Paco | Update | ASC | AS WFS MICH commissioning | [anchal, paco]
We picked up AS WFS comissioning
for daytime work as suggested by gautam. |
|
|
16272
|
Fri Aug 6 17:10:19 2021 |
Paco | Update | IMC | MC rollercoaster | [anchal, yehonatan, paco]
For whatever reason (i.e. we don't
really know) the MC unlocked into a weird |
|
|
16275
|
Wed Aug 11 11:35:36 2021 |
Paco | Update | LSC | PRMI MICH orthogonality plan | [yehonathan, paco]
Yesterday we discussed a bit about
working on the PRMI sensing matrix. |
|
|
16277
|
Thu Aug 12 11:04:27 2021 |
Paco | Update | General | PSL shutter was closed this morning | Thu Aug 12 11:04:42 2021 Arrived to find
the PSL shutter closed. Why? Who? When? How?
No elog, no fun. I opened it, IMC is now |
|
|
16280
|
Mon Aug 16 23:30:34 2021 |
Paco | Update | CDS | AS WFS commissioning; restarting models | [koji, ian, tega, paco]
With the remote/local assistance
of Tega/Ian last friday I made changes on |
|
|
16287
|
Mon Aug 23 10:17:21 2021 |
Paco | Summary | Computers | system reboot glitch | [paco]
At 09:34 PST I noted a glitch in
the controls room as the machines went down |
|
|
16293
|
Tue Aug 24 18:11:27 2021 |
Paco | Update | General | Time synchronization not really working | tl;dr: NTP servers and clients
were never synchronized, are not synchronizing
even with ntp... nodus is synchronized but |
|
|
16298
|
Wed Aug 25 17:31:30 2021 |
Paco | Update | CDS | FB is writing the frames with a year old date | [paco, tega, koji]
After invaluable assistance from
Jamie in fixing this yearly offset in the |
|
|
16300
|
Thu Aug 26 10:10:44 2021 |
Paco | Update | CDS | FB is writing the frames with a year old date | [paco, ]
We went over the X end to check
what was going on with the TRX signal. We |
|
|
16303
|
Mon Aug 30 17:49:43 2021 |
Paco | Summary | LSC | XARM POX OLTF | Used diaggui to get OLTF in preparation
for optimal system identification / calibration.
The excitation was injected at the control |
|
|
16307
|
Thu Sep 2 17:53:15 2021 |
Paco | Summary | Computers | chiara down, vac interlock tripped | [paco, koji, tega, ian]
Today in the morning the name server
/ network file system running in chiara failed. |
|
|
16313
|
Thu Sep 2 21:49:03 2021 |
Paco | Summary | Computers | chiara down, vac interlock tripped | [tega, paco]
We found the files that took excess
space in the chiara filesystem (see Attachment |
|
|
16320
|
Mon Sep 13 09:15:15 2021 |
Paco | Update | LSC | MC unlocked? | Came in at ~ 9 PT this morning to find
the IFO "down". The IMC had lost
its lock ~ 6 hours before, so at about 03:00 |
|
|
16329
|
Tue Sep 14 17:19:38 2021 |
Paco | Summary | PEM | Excess seismic noise in 0.1 - 0.3 Hz band | For the past couple of days the 0.1 to
0.3 Hz RMS seismic noise along BS-X has increased.
Attachment 1 shows the hour trend in the |
|
|
16343
|
Mon Sep 20 12:20:31 2021 |
Paco | Summary | SUS | PRM and BS Angular Actuation transfer function magnitude measurements | [yehonathan, paco, anchal]
We attempted to find any symptoms
for actuation problems in the PRMI configuration |
|
|
16352
|
Tue Sep 21 11:13:01 2021 |
Paco | Summary | Calibration | XARM calibration noise | Here are some plots from analyzing the
C1:LSC-XARM calibration. The experiment is
done with the XARM (POX) locked, a single |
|
|
16358
|
Thu Sep 23 15:29:11 2021 |
Paco | Summary | SUS | PRM and BS Angular Actuation transfer function magnitude measurements | [Anchal, Paco]
We had a second go at this with
an increased number of averages (from 10 |
|
|
16363
|
Tue Sep 28 16:31:52 2021 |
Paco | Summary | Calibration | XARM OLTF (calibration) at 55.511 Hz | [anchal, paco]
Here is a demonstration of the
methods leading to the single (X)arm calibration |
|
|
16369
|
Thu Sep 30 18:04:31 2021 |
Paco | Summary | Calibration | XARM OLTF (calibration) with three lines | [anchal, paco]
We repeated the same procedure
as before, but with 3 different lines at |
|
|
16377
|
Mon Oct 4 18:35:12 2021 |
Paco | Update | Electronics | Satellite amp box adapters | [Paco]
I have finished assembling the
1U adapters from 8 to 5 DB9 conn. for the |
|
|
16383
|
Tue Oct 5 20:04:22 2021 |
Paco | Summary | SUS | PRM and BS Angular Actuation transfer function magnitude measurements | [Paco, Rana]
We had a look at the BS actuation.
Along the way we created a couple of issues |
|
|
16429
|
Tue Oct 26 16:56:22 2021 |
Paco | Summary | BHD | Part I of BHR upgrade - Locked PMC and IMC | [Paco, Ian]
We opened |
|
|
16437
|
Thu Oct 28 16:32:32 2021 |
Paco | Summary | BHD | Part IV of BHR upgrade - Removal of BSC eastern optics | [Ian, Paco, Anchal]
We turned off the BSC oplev laser
by turning the key counterclockwise. Ian |
|
|
16444
|
Tue Nov 2 16:42:00 2021 |
Paco | Summary | BHD | 1Y1 rack work | [paco, ian]
After the new 1Y0 rack was placed
near the 1Y1 rack by Chub and Anchal, today |
|
|
16453
|
Mon Nov 8 10:13:52 2021 |
Paco | Summary | BHD | 1Y1 rack work; Sorensens removed | [Paco, Chub]
Removed all sorensen power supplies
from this rack except for 12 VDC one; that |
|
|
16455
|
Mon Nov 8 15:29:05 2021 |
Paco | Summary | BHD | 1Y1 rack work; New power for cameras | [Paco, Anchal]
In reference to Koji's concern
(see previous elog), we have completely removed |
|
|
16488
|
Tue Nov 30 17:11:06 2021 |
Paco | Update | General | Moved white rack to 1X3.5 | [Paco, Ian, Tega]
We moved the white rack (formerly
unused along the YARM) to a position between |
|
|
16499
|
Fri Dec 10 15:59:23 2021 |
Paco | Update | BHD | Finished Coil driver (even serial number) units tests | [Paco, Anchal]
We have completed modifications
and testing of the HAM Coil driver D1100687 |
|
|
16506
|
Tue Dec 14 19:29:42 2021 |
Paco | Update | BHD | 1Y0 rack work for LO1 | [Paco]
Two coil drivers have been installed
on 1Y0 (slots 6, 7, for LO1 SOS). All connections |
|
|
16507
|
Wed Dec 15 13:57:59 2021 |
Paco | Update | Computers | upgraded ubuntu on zita | [Paco]
Upgraded zita's ubuntu and
restarted the striptool script. |
|
|
16539
|
Mon Jan 3 12:05:08 2022 |
Paco | Update | BHD | 1Y0 rack work for LO2 AS1 AS4 | [Paco, Anchal]
Continue working on 1Y0. Added
coil drivers for LO2, AS1, AS4. Anchal made |
|
|
16540
|
Mon Jan 3 16:46:41 2022 |
Paco | Update | BHD | 1Y1 rack work for SR2, PR2, PR3 | [Paco, Anchal]
Continued working on 1Y1 rack.
Populated the 6 coil drivers, made all connections |
|