| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
15916
|
Fri Mar 12 18:10:01 2021 |
Anchal | Summary | Computer Scripts / Programs | Installed cds-workstation on allegra | allegra had fresh Debian 10 installed on
it already. I installed cds-workstation packages
(with the help of Erik von Reis). I checked |
|
|
15934
|
Wed Mar 17 16:30:46 2021 |
Anchal | Update | SUS | Normalized Input Matrices plotted better than SURF students | Here, I present the same input matrices
now normalized row by row to have same norm
as current matrices rows. These now I plotted |
|
|
15971
|
Sun Mar 28 14:16:25 2021 |
Anchal | Summary | SUS | MC3 new Input Matrix not providing stable loop | Rana asked us to write out here the new
MC3 input matrix we have calculated along
with the old one. The new matrix is not working |
|
|
15988
|
Thu Apr 1 21:13:54 2021 |
Anchal | Update | SUS | Matrix results, new measurement set to trigger |
New
Input matrix used for MC2 (C1:SUS-MC2_INMATRIX_ii_jj
|
|
|
15991
|
Fri Apr 2 14:51:20 2021 |
Anchal | Update | SUS | Bug found, need to redo the balancing | Last run gave similar results as the quick
run we did earlier. The code has been unable
to strike out couplings with POS. We found |
|
|
16005
|
Wed Apr 7 17:38:51 2021 |
Anchal | Update | SUS | Trying to uncouple only PIT and YAW first | To test if our method is working at all,
we went for the simpler case of just uncoupling
PIT and YAW. This is also because the sensor |
|
|
16017
|
Mon Apr 12 10:07:35 2021 |
Anchal | Update | SUS | What's F2A?? | I'm not sure I understand what F2A
is? I couldn't find a description of
this filter anywhere and don't remember |
|
|
16026
|
Wed Apr 14 13:12:13 2021 |
Anchal | Update | General | Sorry, it was me | Sorry about that. It must be me. I'll
make sure it doesn't happen again. I
was careless to not check back, no further |
|
|
16027
|
Wed Apr 14 13:16:20 2021 |
Anchal | Configuration | Computers | 40m Control Room Changes |
I have confirmed that the old two
monitors' backlighting is not working.
One can see the impression of the display |
|
|
16030
|
Wed Apr 14 16:46:24 2021 |
Anchal | Update | General | IFO State | That makes sense. I assumed that IFO-STATE
is configured as you have proposed it to
be configured. This could be implemented |
|
|
16031
|
Wed Apr 14 17:53:38 2021 |
Anchal | Update | SUS | Plan for calculating filter banks for output matrix aka F2A aka F2P | Plan of action
Get
the transfer functions of the suspension
plant from actuated DOF to sensed DOF. We'll |
|
|
16035
|
Thu Apr 15 11:41:43 2021 |
Anchal | Update | SUS | Proposed filters for output matrix aka F2A aka F2P | Here' s aquick update before we leave
for lunch. We have managed to calculate some
filter that would go on the POS column in |
|
|
16055
|
Tue Apr 20 18:19:30 2021 |
Anchal | Update | SUS | MC2 coil balanced at DC | Following up from morning's work, I
balanced the coils at DC as well. Attachment
1 is screenshot of striptool in which blue |
|
|
16068
|
Wed Apr 21 19:28:03 2021 |
Anchal | Update | PSL | PSL/IFO recovery | [Anchal, Koji]
Removed the top sheet
Opened
first from the door side so that any dust |
|
|
16071
|
Thu Apr 22 08:50:21 2021 |
Anchal | Update | SUS | MC2 Suspension Optimization summary | Yes, during the AC balancing, POS column
was set to all 1. This table shows the final
values after all the steps. The first 3 columns |
|
|
16077
|
Thu Apr 22 15:34:54 2021 |
Anchal | Update | PSL | PMC transmission | Koji mentioned that the mode of the laser
is different for lower diode currents. So
that might be the reason why we got less |
|
|
16078
|
Thu Apr 22 15:36:54 2021 |
Anchal | Update | SUS | Settings restored | The mix up was my fault I think. I restored
the channels manually instead of using burt
restore. Your message suggests that we can |
|
|
16091
|
Wed Apr 28 17:09:11 2021 |
Anchal | Update | SUS | Tuned Suspension Parameters uploaded for long term behavior monitoring | I have uploaded all the new settings mentioned
in 16066
and 16072. |
|
|
16094
|
Thu Apr 29 10:52:56 2021 |
Anchal | Update | SUS | IMC Trans QPD and WFS loops step response test | In 16087
we mentioned that we were unable to do a
step response test for WFS loop to get an |
|
|
16095
|
Thu Apr 29 11:51:27 2021 |
Anchal | Summary | LSC | Start of measuring IMC WFS noise contribution in ar cavity length noise | Tried locking the arms
Ran IFO > Configure
> ! (YARM) > Restore YARM. Nothing |
|
|
16100
|
Thu Apr 29 17:43:48 2021 |
Anchal | Update | CDS | F2A Filters double check | I double checked today and the F2A filters
in the output matrices of MC1, MC2 and MC3
in the POS column are ON. I do not get what |
|
|
16101
|
Thu Apr 29 17:51:19 2021 |
Anchal | Summary | LSC | Start of measuring IMC WFS noise contribution in arm cavity length noise | t Both arms were locked simply by using
IFO > Configure > ! (YARM) > Restore
YARM. I had to use ASS to improve the TRX/TRY |
|
|
16102
|
Thu Apr 29 18:53:33 2021 |
Anchal | Update | SUS | IMC Suspension Damping Gains Test | With the input matrix, coil ouput gains
and F2A filters loaded as in 16091,
I tested the suspension loops' step response |
|
|
16110
|
Mon May 3 16:24:14 2021 |
Anchal | Update | SUS | IMC Suspension Damping Gains Test Repeated with IMC unlocked | We repeated the same test with IMC unlocked.
We had found these gains when IMC was unlocked
and their characterization needs to be done |
|
|
16113
|
Mon May 3 18:59:58 2021 |
Anchal | Summary | General | Weird gas leakagr kind of noise in 40m control room | For past few days, a weird sound of decaying
gas leakage comes in the 40m control room
from the south west corner of ceiling. Attached |
|
|
16120
|
Wed May 5 09:04:47 2021 |
Anchal | Update | SUS | New IMC Suspension Damping Gains uploaded for long term testing | We have uploaded the new damping gains
on all the suspensions of IMC. This completes
changing all the configuration to as mentioned |
|
|
16125
|
Thu May 6 16:13:39 2021 |
Anchal | Summary | IMC | Angular actuation calibration for IMC mirrors | Here's my first attempt at doing angular
actuation calibration for IMC mirrors using
the method descibed in /users/OLD/kakeru/oplev_calibration/oplev.pdf |
|
|
16139
|
Thu May 13 19:38:54 2021 |
Anchal | Update | SUS | MC1 Satellite Amplifier Debugged | [Anchal Koji]
Koji and I did a few tests with
an OSEM emulator on the satellite amplifier |
|
|
16147
|
Thu May 20 10:35:57 2021 |
Anchal | Update | SUS | IMC settings reverted | For future reference, the new settings
can be upoaded from a script in the same
directory. Run python /users/anchal/20210505_IMC_Tuned_SUS_with_Gains/uploadNewConfigIMC.py |
|
|
16168
|
Fri May 28 17:32:48 2021 |
Anchal | Summary | ALS | Single Arm Actuation Calibration with IR ALS Beat | I attempted a single arm actuation calibration
using IR beatnote (in the directions of soCal
idea for DARM calibration) |
|
|
16179
|
Thu Jun 3 17:35:31 2021 |
Anchal | Summary | IMC | Fixed medm button | I fixed the PSL shutter button on Shutters
summary page C1IOO_Mech_Shutter.adl. Now
PSL switch changes C1:PSL-PSL_ShutterRqst |
|
|
16197
|
Thu Jun 10 14:01:36 2021 |
Anchal | Summary | AUX | Xend Green Laser PDH OLTF measurement loop algebra | Attachment 1 shows the closed loop of Xend
Green laser Arm PDH lock loop. Free running
laser noise gets injected at laser head after |
|
|
16200
|
Mon Jun 14 18:57:49 2021 |
Anchal | Update | AUX | Xend is unbearably hot. Green laser is loosing lock in 10's of seconds | Working in Xend with mask on has become
unbearable. It is very hot there and I would
really like if we fix this issue. |
|
|
16214
|
Fri Jun 18 14:53:37 2021 |
Anchal | Summary | PEM | Temperature sensor network proposal | I propose we set up a temperature sensor
network as described in attachment 1.
Here there are two types of units: |
|
|
16222
|
Wed Jun 23 09:05:02 2021 |
Anchal | Update | SUS | MC lock acquired back again | MC was unable to acquire lock because the
WFS offsets were cleared to zero at some
point and because of that MC was very misaligned |
|
|
16231
|
Wed Jun 30 15:31:35 2021 |
Anchal | Summary | Optical Levers | Centered optical levers on ITMY, BS, PRM and ETMY | When both arms were locked, we found that
ITMY optical lever was very off-center. This
seems to have happened after the c1susaux |
|
|
16232
|
Wed Jun 30 18:44:11 2021 |
Anchal | Summary | LSC | Tried fixing ETMY QPD | I worked in Yend station, trying to get
the ETMY QPD to work properly. When I started,
only one (quadrant #3) of the 4 quadrants |
|
|
16236
|
Thu Jul 1 16:55:21 2021 |
Anchal | Summary | Optical Levers | Fixed Centeringoptical levers PRM | This was a mistake. When arms are locked,
PRM is misaligned by setting -800 offset
in PIT dof of PRM. The oplev is set to function |
|
|
16242
|
Fri Jul 9 15:39:08 2021 |
Anchal | Summary | ALS | Single Arm Actuation Calibration with IR ALS Beat [Correction] | I did this analysis again by just doing
demodulation go 5s time segments of the 60s
excitation signal. The major difference is |
|
|
16261
|
Tue Jul 27 23:04:37 2021 |
Anchal | Update | LSC | 40 meter party | [ian, anchal, paco]
After our second attempt of locking
PRFPMI tonight, we tried to resotre XARM |
|
|
16264
|
Wed Jul 28 17:10:24 2021 |
Anchal | Update | LSC | Schnupp asymmetry | [Anchal, Paco]
I redid the measurement of Schnupp
asymmetry today and found it to be 3.8 cm |
|
|
16268
|
Tue Aug 3 20:20:08 2021 |
Anchal | Update | Optical Levers | Recentered ETMX, ITMX and ETMY oplevs at good state | Late elog. Original time 08/02/2021 21:00.
I locked both arms and ran ASS
to reach to optimum alignment. ETMY PIT > |
|
|
16270
|
Thu Aug 5 14:59:31 2021 |
Anchal | Update | General | Added temperature sensors at Yend and Vertex too | I've added the other two temperature
sensor modules on Y end (on 1Y4, IP: 192.168.113.241)
and in the vertex on (1X2, IP: 192.168.113.242). |
|
|
16271
|
Fri Aug 6 13:13:28 2021 |
Anchal | Update | BHD | c1teststand subnetwork now accessible remotely | c1teststand subnetwork is now accessible
remotely. To log into this network, one needs
to do following: |
|
|
16273
|
Mon Aug 9 10:38:48 2021 |
Anchal | Update | BHD | c1teststand subnetwork now accessible remotely | I had to add following two lines in the
/etc/network/interface file to make the special
ip routes persistent even after reboot: |
|
|
16282
|
Wed Aug 18 20:30:12 2021 |
Anchal | Update | ASS | Fixed runASS scripts | Late elog:
Original time of work Tue Aug 17 20:30 2021
I locked the arms yesterday |
|
|
16283
|
Thu Aug 19 03:23:00 2021 |
Anchal | Update | CDS | Time synchornization not running | I tried to read a bit and understand the
NTP synchronization implementation in FE
computers. I'm quite sure that NTP synchronization |
|
|
16285
|
Fri Aug 20 00:28:55 2021 |
Anchal | Update | CDS | Time synchornization not running | I added ntpserver as a known host name
for address 192.168.113.201 (fb1's address
where ntp server is running) in the martian |
|
|
16286
|
Fri Aug 20 06:24:18 2021 |
Anchal | Update | CDS | Time synchornization not running | I read on some stack exchange that 'NTP
synchornized' indicator turns 'yes'
in the output of command timedatectl only |
|
|
16291
|
Mon Aug 23 22:51:44 2021 |
Anchal | Update | General | Time synchronization efforts | Related elog thread: 16286
I didn't really achieve
anything but I'm listing what I've |
|