| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
14213
|
Sun Sep 23 20:15:35 2018 |
Koji | Summary | OMC | Montecarlo simulation of the phase difference between P and S pols for a modeled HR mirror | Link to OMC_Lab
ELOG 308 |
|
|
14212
|
Sun Sep 23 19:32:23 2018 |
yuki | Configuration | ASC | Y end table upgrade plan | [ Yuki, Gautam ]
The setup I designed before has
abrupt gouy phase shift between two steering |
|
|
14211
|
Sun Sep 23 17:38:48 2018 |
yuki | Update | ASC | Alignment of AUX Y end green beam was recovered | [ Yuki, Koji, Gautam ]
An alignment of AUX Y end green
beam was bad. With Koji and Gautam's |
|
|
14210
|
Sat Sep 22 00:21:07 2018 |
Koji | Update | CDS | Frequent time out | [Gautam, Koji]
We had another crash of c1sus and
Gautam did full power cycling of c1sus. It |
|
|
14208
|
Fri Sep 21 19:50:17 2018 |
Koji | Update | CDS | Frequent time out | Multiple realtime processes on c1sus are
suffering from frequent time outs. It eventually
knocks out c1sus (process). |
|
|
14207
|
Fri Sep 21 16:51:43 2018 |
gautam | Update | VAC | c1vac1 is unresponsive | Steve pointed out that some of the vacuum
MEDM screen fields were reporting "NO
COMM". Koji confirmed that this is a |
|
|
14206
|
Fri Sep 21 16:46:38 2018 |
gautam | Update | CDS | New PCIe fiber installed and routed | [steve,
koji, gautam] |
|
|
14205
|
Fri Sep 21 09:59:09 2018 |
yuki | Configuration | ASC | Y end table upgrade plan | [Yuki, Gautam]
Attachments #1 is the current setup
of AUX Y Green locking and it has |
|
|
14203
|
Thu Sep 20 16:19:04 2018 |
gautam | Update | CDS | New PCIe fiber install postponed to tomorrow | [steve,
gautam] |
|
|
14202
|
Thu Sep 20 11:29:04 2018 |
gautam | Update | CDS | New PCIe fiber housed | [steve,
yuki, gautam] |
|
|
14201
|
Thu Sep 20 08:17:14 2018 |
Steve | Update | SUS | local 3.4M earth quake | M3.4 Colton shake did not trip sus.
|
|
|
14200
|
Tue Sep 18 17:56:01 2018 |
not gautam | Update | IOO | PMC and IMC relocked, WFS inputs turned off | I restarted the LSC models in the usual
way via the c1lsc reboot script. After doing
this I was able to lock the YARM configuration |
|
|
14199
|
Tue Sep 18 14:02:37 2018 |
Steve | Update | safety | safety training | Yuki Miyazaki received 40m specific basic
safety training.
|
|
|
14198
|
Mon Sep 17 12:28:19 2018 |
gautam | Update | IOO | PMC and IMC relocked, WFS inputs turned off | The PMC and IMC were unlocked. Both were
re-locked, and alignment of both cavities
were adjusted so as to maximize MC2 trans |
|
|
14197
|
Wed Sep 12 22:22:30 2018 |
Koji | Update | Computers | SSL2.0, SSL3.0 disabled | LIGO GC notified us that nodus had SSL2.0
and SSL3.0 enabled. This has been disabled
now. |
|
|
14196
|
Mon Sep 10 12:44:48 2018 |
Jon | Update | CDS | ADC replacement in c1lsc expansion chassis | Gautam and I restarted the models on c1lsc,
c1ioo, and c1sus. The LSC system is functioning
again. We found that only restarting c1lsc |
|
|
14195
|
Fri Sep 7 12:35:14 2018 |
gautam | Update | CDS | ADC replacement in c1lsc expansion chassis | Looks like the ADC was not to blame, same
symptoms persist.
|
|
|
14194
|
Thu Sep 6 14:21:26 2018 |
gautam | Update | CDS | ADC replacement in c1lsc expansion chassis | Todd E. came by this morning and gave us
(i) 1x new ADC card and (ii) 1x roll of 100m
(2017 vintage) PCIe fiber. This afternoon, |
|
|
14193
|
Wed Sep 5 10:59:23 2018 |
wgautam | Update | CDS | CDS status update | Rolf came by today morning. For now, we've
restarted the FE machine and the expansion
chassis (note that the correct order in which |
|
|
14192
|
Tue Sep 4 10:14:11 2018 |
gautam | Update | CDS | CDS status update | c1lsc crashed again. I've contacted
Rolf/JHanks for help since I'm out of
ideas on what can be done to fix this |
|
|
14191
|
Wed Aug 29 14:51:05 2018 |
Steve | Update | General | tomorrow morning | Electrician is coming to fix one of the
fluorenent light fixture holder in the east
arm tomorrow morning at 8am. He will be out |
|
|
14190
|
Wed Aug 29 11:46:27 2018 |
Jon | Update | SUS | local 4.4M earth quake | I freed ITMX and coarsely realigned the
IFO using the OPLEVs. All the alignments
were a bit off from overnight. |
|
|
14189
|
Wed Aug 29 09:56:00 2018 |
Steve | Update | VAC | Maglev controller needs service | TP-1 Osaka maglev controller [
model TCO10M, ser V3F04J07 ]
needs maintenance. Alarm led on indicating |
|
|
14188
|
Wed Aug 29 09:20:27 2018 |
Steve | Update | SUS | local 4.4M earth quake | All suspension tripped. Their damping restored.
The MC is locked.
ITMX-UL & side magnets are |
|
|
14187
|
Tue Aug 28 18:39:41 2018 |
Jon | Update | CDS | C1LSC, C1AUX reboots | I found c1lsc unresponsive again today.
Following the procedure in elog
#13935, I ran the rebootC1LSC.sh |
|
|
14186
|
Tue Aug 28 15:29:19 2018 |
Steve | Frogs | PEM | Rat is cut | The rat is cut by mechanical trap and it
was removed from ITMX south west location.
A nagy kover patkanyt a fogo elkapta |
|
|
14185
|
Mon Aug 27 09:14:45 2018 |
Steve | Update | PEM | small earth quakes | Small earth quakes and suspensions. Which
one is the most free and most sensitive:
ITMX |
|
|
14184
|
Fri Aug 24 14:58:30 2018 |
Steve | Update | SUS | ETMX trips again | The second big glich trips ETMX sus. There
were small earth quakes around the glitches.
It's damping recovered. |
|
|
14183
|
Fri Aug 24 10:51:23 2018 |
Steve | Update | VAC | pumpdown 81 at day 38 |
|
|
|
14182
|
Fri Aug 24 08:04:37 2018 |
Steve | Update | General | small earth quake |
|
|
|
14181
|
Thu Aug 23 16:10:13 2018 |
not Koji | Update | IMC | MC/PMC trouble | Great, thanks!
|
|
|
14180
|
Thu Aug 23 16:05:24 2018 |
Koji | Update | IMC | MC/PMC trouble | I don't know what had been wrong, but
I could lock the PMC as usual.
The IMC got relocked by AutoLocker. |
|
|
14179
|
Thu Aug 23 15:26:54 2018 |
Jon | Update | IMC | MC/PMC trouble | I tried unsuccessfully to relock the MC
this afternoon.
I came in to find it in a trouble |
|
|
14178
|
Thu Aug 23 08:24:38 2018 |
Steve | Update | SUS | ETMX trip follow-up | Glitch, small amplitude, 350 counts
& no trip.
|
|
|
14177
|
Wed Aug 22 12:22:27 2018 |
rana | Summary | Electronics | Inspection of the possible dual backplane interfaces for Acromag DAQ | I think we don't need to keep Crystal
Ref: we can change this into a regular Wenzel
box with no outside control or monitoring. |
|
|
14176
|
Wed Aug 22 08:44:09 2018 |
Steve | Update | General | earth quake | 6.2M Bandon, OR did not trip any sus
|
|
|
14175
|
Wed Aug 22 00:22:05 2018 |
Koji | Summary | Electronics | Inspection of the possible dual backplane interfaces for Acromag DAQ | [Johannes, Koji]
We went around the LSC, PSL, IOO,
and SUS racks to check how many dual backplane |
|
|
14174
|
Tue Aug 21 17:32:51 2018 |
awade | Bureaucracy | Equipment loan | One P-810.10 Piezo Actuators element removed | I've taken a PI Piezo Actuator
(P-810.10)
from the 40m collection. I forgot to note |
|
|
14173
|
Tue Aug 21 09:16:23 2018 |
Steve | Update | Wiki | AP table layout 20180821 |
|
|
|
14172
|
Tue Aug 21 03:09:59 2018 |
johannes | Omnistructure | DAQ | Panels for Acromag DAQ chassis | I expanded the previous panels to 6U height
for the new DAQ chassis we're buying
for the upgrade. I figure it's best if |
|
|
14171
|
Mon Aug 20 15:16:39 2018 |
Jon | Update | CDS | Rebooted c1lsc, slow machines | When I came in this morning no light was
reaching the MC. One fast machine was
dead, c1lsc, and a number of the slow machines: |
|
|
14170
|
Mon Aug 20 14:04:53 2018 |
johannes | Bureaucracy | Equipment loan | Two C30642G PDs removed | EDIT: After discussing with Koji
and checking the existing M2ISS PDs I put
the two C30642G back and took two C30665GH |
|
|
14169
|
Thu Aug 16 23:06:50 2018 |
gautam | Update | SUS | Another low noise bias path idea | I had a very fruitful discussion with Rich
about this circuit today. He agreed
with the overall architecture, but made the |
|
|
14168
|
Thu Aug 16 14:48:14 2018 |
Steve | Update | VAC | why do we need a root pump? |
Basic Pump Throughput Concepts
What
is Pump Throughput?
The manufacturer |
6x |
|
14167
|
Thu Aug 16 07:50:28 2018 |
Steve | Update | VAC | pumpdown 81 at day 30 |
|
|
|
14166
|
Wed Aug 15 21:27:47 2018 |
gautam | Update | CDS | CDS status update | Starting c1cal
now, let's see if the other c1lsc FE
models are affected at all... Moreover, since |
|
|
14165
|
Wed Aug 15 19:18:07 2018 |
gautam | Update | SUS | Another low noise bias path idea | I took another pass at this. Here is what
I have now:
Attachment |
|
|
14164
|
Wed Aug 15 12:15:24 2018 |
gautam | Update | COC | Macroscopic SRC length for SR tuning | Summary:
It |
|
|
14163
|
Tue Aug 14 23:14:24 2018 |
aaron | Update | OMC | OMC scanning/aligning script | I made a script to scan the OMC length
at each setpoint for the two TTs steering
into the OMC. It is currently located on |
|
|
14162
|
Tue Aug 14 02:01:12 2018 |
gautam | Update | LSC | DRMI locking - partial success | After tweaking the AS55 demod phase, SRM
alignment, triggering settings, I got a few
brief |
|