| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
6389
|
Fri Mar 9 10:17:06 2012 |
steve | HowTo | PEM | do not leave tables open | Type: How not to
Please do not leave optical tables
open! You will be held responsible for creating |
|
|
11451
|
Tue Jul 28 14:58:59 2015 |
Steve | Update | General | do not place anything on optical table tops | Specially heavy
items: old analoge scope or hardware loaded |
|
|
15286
|
Mon Mar 30 19:02:49 2020 |
rana | Update | General | donated cleanroom supplies to Hospitals | Yesterday evening I took nearly all of
the masks, gloves, gowns, alcohol wipes,
hats, and shoe covers. These were the ones |
|
|
12711
|
Fri Jan 13 10:53:03 2017 |
Steve | Update | PEM | doors are fixed | Control room to outside door was
realigned.
|
|
|
12561
|
Fri Oct 14 10:31:53 2016 |
gautam | Update | General | doors are off ITMY and BS/PRM chambers | [steve,ericq,gautam]
We re-checked IMC locking, arm
alignments (we were able to lock and dither |
|
|
6200
|
Sun Jan 15 11:40:30 2012 |
Den | Update | Adaptive Filtering | downsampling | Here for the downsampling process we use
a low-pass Bessel digital filter of order
6, normalized cut-off frequency = 0.1. In |
|
|
6806
|
Tue Jun 12 17:29:28 2012 |
Den | Update | CDS | dq channels | All PEM and IOO DQ channels disappeared.
These channels were commented in C1???.ini
files though I've uncommented them a few |
|
|
5309
|
Fri Aug 26 15:59:33 2011 |
steve | Update | General | drawer cabinet moves in | manufacturer
info
Jamie and Shuresh moved in Jenne's |
|
|
5310
|
Fri Aug 26 16:17:31 2011 |
Jenne | Update | General | drawer cabinet moves in |
|
|
|
8205
|
Fri Mar 1 08:19:40 2013 |
Steve | Update | ASS | drift | Early morning drift in pitch. This
plot is meaningless because there is no real
light on IP-Ang |
|
|
11271
|
Mon May 4 12:35:49 2015 |
rana | Update | LSC | drift in Y arm | http://www.ligo.caltech.edu/~misi/summary/day/20150504/
I left the arms locked last night.
Looks like the drift in the Y arm power is |
|
|
11275
|
Fri May 8 08:16:46 2015 |
Steve | Update | LSC | drift in Y arm | Why is the Y arm drifting so much?
The " PSL FSS Slow Actuator
Adjust " was brought back to range from |
|
|
6238
|
Mon Jan 30 23:10:02 2012 |
kiwamu | Update | SUS | drift mon script needs to be fixed | [Rana / Kiwamu]
We tried to set some parameters for
the suspension drift monitor but the old |
|
|
1176
|
Thu Dec 4 17:42:23 2008 |
caryn | Update | IOO | drum modes observable without excitation | So, the mode cleaner was evidently aligned
better and now the drum modes are observable
using DTT.
|
|
|
1179
|
Fri Dec 5 09:29:59 2008 |
rana | Update | IOO | drum modes observable without excitation | Not sure what the y-scale is since there aren't
any y axis labels in the plot, but it seems
like we
|
|
|
1182
|
Fri Dec 5 21:31:11 2008 |
Yoichi | Update | IOO | drum modes observable without excitation | The calibration of the MC_F feedback is posted
in elog:1032.
I'm not sure where Caryn took MC signal, |
|
|
9119
|
Tue Sep 10 09:18:22 2013 |
Steve | Update | VAC | dry pump is getting loud |
TP3 foreline's dry pump is
getting noisier and noisier. Turbo |
|
|
8231
|
Tue Mar 5 14:59:32 2013 |
Steve | HowTo | VAC | dry-forepump replaced | TP3 turbo pump's dry-foreline pump was
replaced.
How to do it: |
|
|
14244
|
Fri Oct 12 08:27:05 2018 |
Steve | Update | VAC | drypump | Gautam and Steve,
Our TP3 drypump seal is at 360
mT [0.25A load on small turbo] after |
|
|
465
|
Mon May 5 15:53:14 2008 |
steve | Update | VAC | drypump replaced & readbacks are out | The small turbo pump of the annulus system
is tp3
It's drypump was replaced at 1.4 Torr after |
|
|
6970
|
Thu Jul 12 16:27:04 2012 |
steve | Update | VAC | drypump changed | TP2 dry_pump was changed at intake
pressure 982 mTorr at 84,889 hrs This
seal hold up for one year. |
|
|
14256
|
Mon Oct 15 13:59:42 2018 |
Steve | Update | VAC | drypump replaced | Steve & Bob,
Bob removed the head cover from
the housing to inspect the condition of the |
|
|
6554
|
Sat Apr 21 17:38:19 2012 |
Jamie | Update | CDS | dtt, dataviewer working; problem with trend frames |
|
|
|
15833
|
Mon Feb 22 14:53:47 2021 |
gautam | Update | CDS | dtt-ezca-tools installed on rossa | The defaults cds-crtools didn't come
with some of the older ezcautils (like ezcaread,
ezcawrite etc). This is now packaged for |
|
|
579
|
Thu Jun 26 21:07:11 2008 |
rana | Configuration | ASS | dust & MC1 | I realized today, that yesterday while we
were trying to debug the adaptive noise canceler,
I turned
|
|
|
581
|
Fri Jun 27 09:20:15 2008 |
steve | Frogs | PEM | dust particle count is up & alarm handler is on | This 3 years plot show the trend of seasons.
When outside air quality goes bad ( 0.5 micron
> 1 million ) the lab follows.
|
|
|
10922
|
Tue Jan 20 09:32:19 2015 |
Steve | Update | PEM | dusty Monday morning | Yesterday morning was dusty. I wonder why?
The PRM sus damping was restored
this morning. |
|
|
10983
|
Fri Feb 6 10:03:23 2015 |
Steve | Update | PEM | dusty days |
|
|
|
12084
|
Wed Apr 20 14:36:45 2016 |
Steve | Update | PEM | dusty lab | It is worth wiping table top covers. Use
isopropanol soaked lint free wipes.
|
|
|
13990
|
Wed Jun 20 09:16:56 2018 |
Steve | Update | PEM | dusty lab | You should wipe off the table cover before
you take it off next time.
It is important to turn up the |
|
|
9591
|
Mon Feb 3 10:17:14 2014 |
Steve | Update | PEM | dusty surfaces | Please wet WIPE |
|
|
3426
|
Mon Aug 16 23:13:25 2010 |
Zach | Update | elog | e to the log | Zach
I get so many freebies
it's ridiculous
|
|
|
3540
|
Tue Sep 7 23:34:15 2010 |
Kiwamu, Sanjit | Configuration | Computers | e-log | e-log was repeatedly hanging and several
attempts to start the daemon failed.
problem was solved after clearing |
|
|
2446
|
Tue Dec 22 15:49:31 2009 |
kiwamu | Update | General | e-log restarted | I found the e-log has been down around
3:40pm, then I restarted the e-log. Now it's
working. |
|
|
1076
|
Thu Oct 23 18:51:19 2008 |
Alberto | Metaphysics | Computers | eLog | I checked it and the latest version of the
elog software, the 2.7.5 (we have the 2.6.5)
has, among new nice features, the very good |
|
|
1
|
Wed Oct 17 18:46:33 2007 |
rana | Configuration | General | eLog Change | This is the first entry in the [U]new[/U]
40m eLog.
|
|
|
3384
|
Sat Aug 7 21:09:59 2010 |
Dmass | Configuration | Computer Scripts / Programs | eLog changes | I made some changes to the elog on nodus:
Made a backup of /cvs/cds/caltech/elog/elog-2.7.5/elogd.cfg
called elogd.cfg.bk.20100407 in the same |
|
|
416
|
Mon Apr 7 16:42:56 2008 |
rana | Update | Computers | eLog intermittent | Phil Ehrens restarted Dziban again this morning.
Looks like its still crashing each Monday
around 8 AM.
|
|
|
491
|
Thu May 22 11:21:45 2008 |
steve | Bureaucracy | SAFETY | early surf sudent | Caltech under grad Eric Mintun received the
40m safety training.
Now he has to read and sign SOP of laser |
|
|
11610
|
Thu Sep 17 08:36:14 2015 |
Steve | Update | PEM | earth quake | No damage. The BS sensor UR 0.220 V has
been low for some times.
Dataviewer does not work for long |
|
|
14176
|
Wed Aug 22 08:44:09 2018 |
Steve | Update | General | earth quake | 6.2M Bandon, OR did not trip any sus
|
|
|
14321
|
Tue Nov 27 10:50:20 2018 |
Steve | Update | PEM | earth quake Mexico | Nothing tripped.
|
|
|
33
|
Tue Oct 30 20:15:24 2007 |
tobin | Other | Environment | earthquake | Rana, Tobin
Largish (M5.6) earthquake in San Francisco |
|
|
1539
|
Fri May 1 18:51:34 2009 |
Alberto | Summary | Environment | earthquake | Earthquake 4.4 Leo Carrillo Beach.
Some of the watchdogs tripped out. |
|
|
2046
|
Fri Oct 2 18:26:32 2009 |
rob | AoG | Environment | earthquake | quake coming through. I've re-enabled
optic damping (except ETMY), and left off
the oplevs for now. We can do a resonant-f |
|
|
6558
|
Tue Apr 24 09:58:37 2012 |
steve | Update | PEM | earthquake 3.9 magnitude | Local
eq shakes the lab |
|
|
797
|
Tue Aug 5 10:23:00 2008 |
steve | Update | SUS | earthquake and venting effects | atm 1, EQ
atm 2, vent 7 days later: venting kicks optic
into place to be free,
|
|
|
2765
|
Mon Apr 5 08:43:48 2010 |
steve | Update | PEM | earthquake mag 7.2 | Large
earthquake shakes Baja California, Mexico
and 6 over Magnitude 5 aftershakes follow. |
|
|
462
|
Thu May 1 08:31:51 2008 |
steve | Update | SUS | earthquake trips etmy & mc1 | Earthquake at Lake Isabel magnitude 4.4 at
1am today shakes the 40m
ETMY and MC1 watchdogs tripped.
|
|
|
7281
|
Mon Aug 27 08:34:18 2012 |
Steve | Update | PEM | earthquakes | Shasky
day yesterday postpones venting. We had
about 11 shakes larger than mag 4.0 Mag5.5 |
|