| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
14295
|
Wed Nov 14 18:58:35 2018 |
aaron | Update | DAQ | New DAC for the OMC | I began moving the AA and AI chassis over
to 1X1/1X2 as outlined in
the elog. |
|
|
14294
|
Wed Nov 14 14:35:38 2018 |
Steve | Update | ALARM | emergency calling list for 40m Lab | It is posted at the 40m
wiki with Gautam' help. Printed copies
posted around doors also. |
|
|
14293
|
Tue Nov 13 21:53:19 2018 |
gautam | Update | CDS | RFM errors | This
problem resurfaced, which I noticed when
I couldn't get the single arm locks going. |
|
|
14292
|
Tue Nov 13 18:09:24 2018 |
gautam | Update | LSC | Investigation of SRCL-->MICH coupling | Summary:
I've been looking into the
cross-coupling from the SRCL loop control |
|
|
14291
|
Tue Nov 13 16:15:01 2018 |
Steve | Update | VAC | rga scan pd81 at day 119 |
|
|
|
14290
|
Mon Nov 12 13:53:20 2018 |
rana | Update | IOO | loss measurement: oscope vs CDS DAQ | sstop using the ssscope, and just put the
ssssignal into the DAQ with sssssome whitening.
You'll get 16 bitsśšß. |
|
|
14289
|
Sat Nov 10 17:40:00 2018 |
aaron | Update | IOO | IMC problematic | Gautam was doing some DRMI locking, so
I replaced the photodiode at the AS port
to begin loss measurements again. |
|
|
14288
|
Sat Nov 10 17:32:33 2018 |
gautam | Update | LSC | Nulling MICH->PRCL and MICH->SRCL | With the DRMI locked, I drove a line in
MICH using the sensing matrix infrastructure.
Then I looked at the error points of MICH, |
|
|
14287
|
Fri Nov 9 22:24:22 2018 |
Jon | Omnistructure | | Wiring of Vacuum Acromag Chassis Complete | Wiring of the power, Ethernet, and indicator
lights for the vacuum Acromag chassis is
complete. Even though this crate will only |
|
|
14286
|
Fri Nov 9 15:00:56 2018 |
gautam | Update | IOO | No IFO beam as TT1 UL hijacked for REFL55 check | This
problem resurfaced. I'm doing the
debugging. |
|
|
14285
|
Wed Nov 7 23:07:11 2018 |
gautam | Update | LSC | DRMI locking recovered | I had some
success today. I hope that the tweaks I made
will allow working with the DRMI during the |
|
|
14284
|
Wed Nov 7 19:42:01 2018 |
gautam | Update | General | IFO checkup and DRMI locking prep | Earlier today, I rebooted a few unresponsive
VME crates (susaux, auxey).
The IMC has been unhappy for a |
|
|
14283
|
Wed Nov 7 19:20:53 2018 |
gautam | Update | Computers | Paola Battery Error | The VEA vertex laptop, paola,
has a flashing orange indicator which I take |
|
|
14282
|
Wed Nov 7 19:17:18 2018 |
Jon | Omnistructure | | modbusIOC is running on c1vac replacement | Today I finished setting up the server
that will replace the c1vac1/2 machines.
I put it on the martian network at the unassigned |
|
|
14281
|
Wed Nov 7 08:32:32 2018 |
Steve | Update | VAC | c1vac1 FAIL lights on (briefly)...checked | The vacuum and MC are OK
|
|
|
14280
|
Wed Nov 7 05:16:16 2018 |
yuki | Update | Computer Scripts / Programs | arm loss measuremenents | Please check your data file and compare
with those Johannes made last year.
I think the power in your data file may have |
|
|
14279
|
Tue Nov 6 23:19:06 2018 |
gautam | Update | VAC | c1vac1 FAIL lights on (briefly) | Jon and I stuck a extender card into the
eurocrate at 1X8 earlier today (~5pm PT),
to see if the box was getting +24V DC from |
|
|
14278
|
Tue Nov 6 19:41:46 2018 |
Jon | Omnistructure | | c1vac1/2 replacement | This afternoon I started setting up the
Supermicro 5017A-EP that will replace c1vac1/2.
Following Johannes's procedure in |
|
|
14277
|
Tue Nov 6 19:02:35 2018 |
aaron | Update | IOO | IMC problematic | That was likely me. I had recentered the
beam on the PD I'm using for the armloss
measurements, and I probably moved |
|
|
14276
|
Tue Nov 6 15:32:24 2018 |
Steve | Update | PSL | MC_Transmitted | I tried to plot a long trend MC Transmitted
today. I could not get farther than
2017 |
|
|
14275
|
Tue Nov 6 15:23:48 2018 |
gautam | Update | IOO | IMC problematic | The
IMC has been misbehaving for the last 5 hours. |
|
|
14274
|
Tue Nov 6 10:19:26 2018 |
aaron | Update | Computer Scripts / Programs | arm loss measuremenents | I'm checking out the data this morning,
running armloss_AS_calc.py using the parameters |
|
|
14273
|
Tue Nov 6 10:03:02 2018 |
Steve | Update | Electronics | Contec board found | The Contec test board with Dsub37Fs was
on the top shelf of E7 |
|
|
14272
|
Tue Nov 6 09:45:32 2018 |
aaron | Metaphysics | Treasure | Zojirushi is dead | New
all organic machine. |
|
|
14271
|
Mon Nov 5 15:55:39 2018 |
Steve | Metaphysics | Treasure | Zojirushi is dead | We
have no coffee machine.
We |
|
|
14270
|
Mon Nov 5 13:52:18 2018 |
aaron | Update | Computer Scripts / Programs | arm loss measuremenents | After running this script Friday night,
i noticed Saturday that the data hadn't
saved. Scrolling up inthe terminal, I couldn't |
|
|
14269
|
Fri Nov 2 19:25:16 2018 |
gautam | Update | Computer Scripts / Programs | loss measurements | Some facts which should be considered when
doing this measurement and the associated
uncertainty: |
|
|
14268
|
Fri Nov 2 16:42:31 2018 |
aaron | Update | Computer Scripts / Programs | arm loss measuremenents | I'm continuing the arm loss measurements
Yuki was making. I'm first familiarizing
myself with the procedures for the measurement |
|
|
14267
|
Fri Nov 2 12:07:16 2018 |
rana | Update | CDS | NDScope | https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=44971
Let's install Jamie's new
Data Viewer |
|
|
14266
|
Fri Nov 2 10:24:20 2018 |
Steve | Update | PEM | roof cleaning | Physical plan is cleaning our roof and
gutters today. |
|
|
14265
|
Fri Nov 2 09:47:57 2018 |
Steve | Metaphysics | Treasure | Zojirushi is dead | It took at least
ten years to rust away. |
|
|
14264
|
Wed Oct 31 17:54:25 2018 |
gautam | Update | VAC | CC1 hornet power connection restored | Steve reported to me that the CC1 Hornet
gauge was not reporting the IFO pressure
after some cable tracing at EX. I found that |
|
|
14263
|
Thu Oct 25 16:17:14 2018 |
Steve | Update | safety | safety training | Chub Osthelder
received 40m specific basic safety traning
today. |
|
|
14262
|
Mon Oct 22 15:19:05 2018 |
Steve | Update | VAC | Maglev controller serviced | Gautam & Steve,
Our controller is back with Osaka
maintenace completed. We swapped it in this |
|
|
14261
|
Thu Oct 18 00:27:37 2018 |
Koji | Update | SUS | SUS PD Whitening board inspection | [Gautam, Koji]
As a part of the preparation for
the replacement of c1susaux with Acromag, |
|
|
14260
|
Wed Oct 17 20:46:24 2018 |
yuki | Configuration | ASC | Y end table upgrade plan | To do for Green Locking in YARM:
The auto-alignment servo should
be completed. This servo requires many parameters |
|
|
14259
|
Wed Oct 17 09:31:24 2018 |
Steve | Update | PSL | main laser off | The main laser went off when PSL doors
were opened-closed. It was turned back on
and the PSL is locked. |
|
|
14258
|
Tue Oct 16 00:44:29 2018 |
yuki | Update | Computer Scripts / Programs | loss measurements | The scripts for measuring armloss are in
the directory "/opt/rtcds/caltech/c1/scripts/lossmap_scripts/armloss_scope".
armloss_derefl_asdcpd_scope.py: |
|
|
14257
|
Mon Oct 15 20:11:56 2018 |
yuki | Configuration | ASC | Y end table upgrade plan | Final Procedure Report for Green Locking
in YARM:
Purpose |
|
|
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 |
|
|
14255
|
Mon Oct 15 12:52:54 2018 |
yuki | Update | Computer Scripts / Programs | additional comments |
Quote:
|
|
|
14254
|
Mon Oct 15 10:32:13 2018 |
yuki | Update | Computer Scripts / Programs | loss measurements | I used these values for measuring armloss:
Transmissivitity of ITM
= 1.384e-2 * (1 +/- 1e-2)
Transmissivitity |
|
|
14253
|
Sun Oct 14 16:55:15 2018 |
not gautam | Update | CDS | pianosa upgrade | DASWG is not what we want to use for config;
we should use the K. Thorne LLO
instructions, like I did for ROSSA. |
|
|
14251
|
Sat Oct 13 20:11:10 2018 |
yuki | Update | Computer Scripts / Programs | loss measurements |
Quote:
|
|
|
14248
|
Fri Oct 12 20:20:29 2018 |
yuki | Update | Computer Scripts / Programs | loss measurements | I ran the script for measuring arm-loss
and calculated rough Y-arm round trip loss
temporally. The result was 89.6ppm. (The |
|
|
14247
|
Fri Oct 12 17:37:03 2018 |
Steve | Update | VAC | pressure gauge choices | We want to measure the pressure gradient
in the 40m IFO
Our old MKS cold cathodes are out |
|
|
14245
|
Fri Oct 12 12:29:34 2018 |
yuki | Update | Computer Scripts / Programs | loss measurements | With Gautam's help, Y-arm was locked.
Then I ran the script "armloss_dcrefl_asdcpd_scope.py"
which gets the signals from oscilloscope. |
|
|
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 |
|
|
14243
|
Thu Oct 11 13:40:51 2018 |
yuki | Update | Computer Scripts / Programs | loss measurements |
Quote:
|
|
|
14241
|
Wed Oct 10 12:38:27 2018 |
yuki | Configuration | LSC | All hardware was installed | I connected DAC - AIboard - PZTdriver -
PZT mirrors and made sure the PZT mirrors
were moving when changing the signal |
|