| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
424
|
Thu Apr 17 20:17:37 2008 |
Andrey | Update | PEM | Two issues with our weather station |
I encountered two difficulties working with
the "Weather Station".
|
|
|
427
|
Fri Apr 18 16:48:13 2008 |
Andrey | Update | PEM | Rain collector of weather station |
Today the rain collector of our weather station
was cleaned. As a result, we checked that |
|
|
440
|
Wed Apr 23 22:39:54 2008 |
Andrey | DAQ | Computer Scripts / Programs | Problem with "get_data" and slow PEM channels |
It turns out that I cannot read minute trends
for the slow weather channels for more than |
|
|
444
|
Thu Apr 24 22:06:47 2008 |
Andrey | Summary | Computers | Ethernet Cables and Hubs | Today in the morning (between 8.30AM and noon)
Joe and I were working on understanding which
ethernet cables connect "processors controlling |
|
|
447
|
Fri Apr 25 11:33:40 2008 |
Andrey | Configuration | Computers | Computer controlling vaccum equipment |
[COLOR=blue]Old computer[/COLOR] (located
in the south-end end of the interferometer |
|
|
448
|
Fri Apr 25 13:20:04 2008 |
Andrey | Update | PEM | Microphone test | In response to Rana's request, I tested the
microphone (if it is alive or not) by clapping
my hands and speaking aloud nearby.
|
|
|
452
|
Sat Apr 26 01:45:38 2008 |
Andrey | Summary | PEM | Weather Station enhancement | Two more things concerning weather monitoring
have been done during this week.
|
|
|
458
|
Mon Apr 28 23:44:33 2008 |
Andrey | Update | Computer Scripts / Programs | Weather.db |
I was trying to figure out how to modify
the file "Weather.db" so that the atm.pressure |
|
|
460
|
Tue Apr 29 21:30:49 2008 |
Andrey | Update | PEM | In the process of renaming channels for Weather Station |
I startted renaming channels for the weather
station, and I will continue this tomorrow, |
|
|
461
|
Wed Apr 30 20:48:58 2008 |
Andrey | Summary | PEM | New Weather Channels |
I created the new channels for the weather
station, all letters are capital ones. They |
|
|
476
|
Wed May 14 13:14:19 2008 |
Andrey | Summary | Computers | Reflective Memory Network is restored |
[COLOR=blue]Reflective Memory Network is
restored, all watchdogs and oplevs are returned |
|
|
477
|
Wed May 14 14:05:40 2008 |
Andrey | Update | Computers | Computer Linux-2, MEDM screen "Watchdogs" |
Computer "Linux-2", MEDM screen "C1SUS_Watchdogs.adl":
there is no indication for ETMY watchdogs, |
|
|
483
|
Fri May 16 17:27:55 2008 |
Andrey | Omnistructure | General | Toilets are broken, do not use them !!! |
[COLOR=red][SIZE=4] Both toilets in 40-meter
were constantly flushing, the leaking water |
|
|
512
|
Tue Jun 3 02:15:29 2008 |
Andrey | Summary | Cameras | Fitting results |
There have been a lot of work going on related
to the processing of images captured by the |
|
|
515
|
Tue Jun 3 12:33:36 2008 |
Andrey | Update | Cameras | Andrey, Josephb |
Continuing our work with cameras,
|
|
|
10101
|
Wed Jun 25 14:52:22 2014 |
Andres Medina | Update | elog | Placing a lens between the steering mirrors and another lens between the second steering mirror and the cavity | I was asked to calculate the lenses
that we need in order to obtained a Gouy
phase close to 90 degrees between the two |
|
|
10130
|
Sat Jul 5 04:18:45 2014 |
Andres | Update | 40m Xend Table upgrade | Adding Two Lenses After the Second Steering Mirror in Order Two Increase the Gouy Phase Difference Between the Sterring Mirrors | I had been working on the Xend table optical
layout update. Since the two steering mirrors
in the Xend green are too close to each, |
7x |
|
10191
|
Sun Jul 13 17:06:35 2014 |
Andres | Update | 40m Xend Table upgrade | Xarm Table Upgrade Calculation and Diagrams of possible new table layout | Current Mode Matching
and Gouy Phase Between Steering Mirrors |
|
|
10195
|
Mon Jul 14 16:19:41 2014 |
Andres | Update | 40m Xend Table upgrade | Took the measurement for the Mode Matching | Nick
and I measured the reflected power of the
green light in locked and unlocked. I'm working |
|
|
10207
|
Tue Jul 15 22:23:51 2014 |
Andres | Update | 40m Xend Table upgrade | Scan the Xarm for the mode matching | Nick and I with the help of Jenne
scan the green light when the cavity is unlocked.
Nick placed a Beam dump on the IR so that |
|
|
10226
|
Thu Jul 17 02:57:32 2014 |
Andres | Update | 40m Xend Table upgrade | FInish Calculation on Current X-arm mode Matching | Data and Calculation for the
Xarm Current Mode Matching |
|
|
10237
|
Fri Jul 18 16:52:56 2014 |
Andres | Update | 40m Xend Table upgrade | FInish Calculation on Current X-arm mode Matching |
|
|
|
10290
|
Tue Jul 29 20:14:08 2014 |
Andres | Update | 40m Xend Table upgrade | Xarm Green steering mirror upgrade | Xarm Green Steering Mirror Upgrade
Nick
and I did the upgrade for the green steering
mirror today. |
|
|
10296
|
Wed Jul 30 10:16:54 2014 |
Andres | Update | 40m Xend Table upgrade | Green Steering Mirror Upgrade completed | Green Steering Mirror Update
Yesterday,
Nick and I completed the green steering mirrors
upgrade. I attached the file that contained |
|
|
10374
|
Wed Aug 13 10:50:04 2014 |
Andres | Update | IMC | Calculation for the input mode cleaner | Calculation for the input mode
cleaner
I have been working on the
calculation for the input mode cleaner. I |
|
|
10384
|
Thu Aug 14 15:10:47 2014 |
Andres | Update | IMC | Calculation for the input mode cleaner |
|
|
|
10410
|
Tue Aug 19 21:40:44 2014 |
Andres | Update | IMC | New Optical Setup for the IMC | IMC
Calculation and Setup
I have been working in the calculation |
11x |
|
10427
|
Fri Aug 22 18:05:02 2014 |
Andres | Update | IMC | Upgrade of the IMC WFSs for the reflection | Upgrade of IMC Reflection Optical
Setup
Nick and I upgrade the IMC.
We move both WFSs and placed them facing |
|
|
16190
|
Mon Jun 7 15:37:01 2021 |
Anchal, Paco, Yehonathan | Summary | Cameras | Mon 7 in Control Room Died | We found Mon7 in control room dead today
afternoon. It's front power on green
light is not lighting up. All other monitors |
|
|
16112
|
Mon May 3 17:28:58 2021 |
Anchal, Paco, Rana | Update | LSC | IMC WFS noise contribution in arm cavity length noise | Rana came and helped us figure us where
to inject the noise. Following are the characteristics
of the test we did: |
|
|
16228
|
Tue Jun 29 17:42:06 2021 |
Anchal, Paco, Gautam | Summary | LSC | MICH locking tutorial with Gautam | Today we went through LSC locking mechanics
with Gautam and as a "Hello World"
example, worked on locking michelson cavity. |
|
|
16237
|
Fri Jul 2 12:42:56 2021 |
Anchal, Paco, Gautam | Summary | LSC | snap file changed for MICH | We corrected the MICH locking snap file
C1configure_MI.req and saved an updated C1configure_MI.snap.
Now the 'Restore MICH' script in |
|
|
16239
|
Tue Jul 6 16:35:04 2021 |
Anchal, Paco, Gautam | Update | IOO | Restored MC | We found that megatron is unable to properly
run scripts/MC/WFS/mcwfsoff and scripts/MC/WFS/mcwfson
scripts. It fails cdsutils commands due to |
|
|
16241
|
Thu Jul 8 11:20:38 2021 |
Anchal, Paco, Gautam | Summary | LSC | PRFPMI locking attempts | Last night Gautam walked us through the
algorithm used to lock PRFPMI. We tried it
several times with the PSL HEPA filter off |
|
|
15851
|
Mon Mar 1 11:40:15 2021 |
Anchal, Paco | Summary | IMC | getting familiar with IMC controls | [Paco, Anchal]
tl;dr: Done no harm, no
lasting change. |
|
|
15982
|
Wed Mar 31 22:58:32 2021 |
Anchal, Paco | Update | SUS | MC2 Coil Balancing Test | A cross-coupling test has been set to trigger
at 05:00 am on April 1st, 2021. The script
is waiting on tmux session 'cB' on |
|
|
15984
|
Thu Apr 1 13:56:49 2021 |
Anchal, Paco | Update | SUS | MC2 Coil Balancing Test Results | The coil balancing attempt failed. The
off-diagonal values in the measured sensing
matrices either remained the same or increased. |
|
|
15985
|
Thu Apr 1 18:01:06 2021 |
Anchal, Paco | Update | SUS | MC2 Coil Balancing Test Results Success?? | After fixing a few things we felt were
wrong in our implementation of the algorithm,
we ran the coil balancing for 12 iterations |
|
|
15995
|
Mon Apr 5 08:25:59 2021 |
Anchal, Paco | Update | General | Restore MC from early quakes | [Paco, Anchal]
Came in a little bit after 8 and
found the MC unlocked and struggling to lock |
|
|
16001
|
Tue Apr 6 18:46:36 2021 |
Anchal, Paco | Update | SUS | Updates on recent efforts | As mentioned in last post, we earlier made
an error in making sure that all time series
arrays go in with same sampling rate in CSD |
|
|
16007
|
Thu Apr 8 17:04:43 2021 |
Anchal, Paco | Update | SUS | First Successful Coil Balancing | Today, we finally crossed the last hurdle
and got a successful converging coil balancing
run. |
|
|
16009
|
Fri Apr 9 13:13:00 2021 |
Anchal, Paco | Update | SUS | Faster coil balancing | We ran again this method but with the 'b'
parameter as a matrix instead. This provides
more gain on some off-diagonal terms than |
|
|
16016
|
Mon Apr 12 08:32:54 2021 |
Anchal, Paco | Summary | PSL | PMC unlocked at 2pm on Sunday; ~ Restored | PMC lost lock between 21:00 and 22:00 UTC
on April 11th as seen in the summary pages:
https://nodus.ligo.caltech.edu:30889/detcharsummary/day/20210411/psl/#gallery-4 |
|
|
16042
|
Fri Apr 16 11:36:36 2021 |
Anchal, Paco | Update | SUS | Tested proposed filters for POS colum in MC2 output matrix | We tried two sets of filters on the output
matrix POS column in MC2. Both versions failed.
Following are some details. |
|
|
16049
|
Mon Apr 19 12:18:19 2021 |
Anchal, Paco | Update | SUS | Tested proposed filters for POS colum in MC2 output matrix | The filters were somewhat successful, how
much we can see in attachment 1. The tip
about difference between eigenmode basis |
|
|
16054
|
Tue Apr 20 10:52:49 2021 |
Anchal, Paco | Update | SUS | AC gain coil output balancing for IMC | [Paco, Anchal]
We adopted the following
procedure to balance the coil output gains |
|
|
16063
|
Wed Apr 21 11:38:27 2021 |
Anchal, Paco | Update | SUS | MC2 Damping Gains Optimized | We did a step response test with MC2 Suspensoin
Damping Gains and optimized them to get <5
oscillations in ringdown. |
|
|
16066
|
Wed Apr 21 15:50:01 2021 |
Anchal, Paco | Update | SUS | MC2 Suspension Optimization summary |
MC2
Coil Balancing DC and AC Gains
|
|
|
16072
|
Thu Apr 22 12:17:23 2021 |
Anchal, Paco | Update | SUS | MC1 and MC3 Suspension Optimization Summary | |
|
|
16085
|
Mon Apr 26 18:52:52 2021 |
Anchal, Paco | HowTo | Computer Scripts / Programs | awg free slot | Today we had some trouble launching an
excitation on C1:IOO-MC_LSC_EXC from awggui.
The error read: |
|