| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
2136
|
Thu Oct 22 23:14:54 2009 |
Zach | Update | WIKI-40M Update | PSL Table Diagram wiki entry |
|
|
|
2138
|
Fri Oct 23 15:02:00 2009 |
rob | Update | lore | marconi phase | So, it appears that one doesn't even have
to change the Marconi set frequency to alter
the phase of the output signal. It |
|
|
2139
|
Sat Oct 24 04:57:33 2009 |
rana | Update | lore | marconi phase |
|
|
|
2141
|
Mon Oct 26 03:57:06 2009 |
rob | Update | Locking | bad | Lock acquisition has gone bad tonight.
The initial stage works fine, up
through handing off control of CARM to MCL. |
|
|
2142
|
Mon Oct 26 15:40:01 2009 |
steve | Update | PSL | laser power is down | The laser power is down 5-6% |
|
|
2143
|
Mon Oct 26 17:45:34 2009 |
Jenne | Update | Adaptive Filtering | New changes to the OAF fe code | [Alex, Jenne, Sanjit]
Alex came to the 40m today, and did
several awesome things in OAF-land. |
|
|
2144
|
Mon Oct 26 18:15:57 2009 |
rob | Update | IOO | MC OLG | I measured the mode cleaner open loop gain.
It's around 60kHz with 29 degs of phase margin. |
|
|
2145
|
Mon Oct 26 18:49:18 2009 |
kiwamu | Update | LSC | OMC-LSC timing issue | According to my measurements I
conclude that LSC-signal is retarded from |
|
|
2146
|
Mon Oct 26 19:12:50 2009 |
kiwamu | Update | LSC | diagnostic script for LSC timing | The diagnostic script I've written is available
in the 'caltech/users/kiwamu/work/20091026_OMC-LSC-diag/src'.
To run the script, you can just execute |
|
|
2147
|
Mon Oct 26 23:14:08 2009 |
Koji | Update | PSL | laser power is down | I adjusted the steerings to the PMC and
gained 7%. Now the MC_TRANS 7.0 has been
recovered. |
|
|
2148
|
Tue Oct 27 01:45:02 2009 |
rob | Update | Locking | MZ | [quote] Tonight we also encountered a large
peak in the frequency noise around 485 Hz.
Changing the MZ lock point (the spot in |
|
|
2149
|
Tue Oct 27 15:55:04 2009 |
Koji | Update | General | ISS injection work / HEPA is on | I was working on the ISS excitation to
take TFs.
I used ISS IL excitation, stealing |
|
|
2151
|
Tue Oct 27 18:01:49 2009 |
rob | Update | PSL | hmmm | A 30-day trend of the PCDRIVE from the
FSS. |
|
|
2152
|
Tue Oct 27 18:19:14 2009 |
rob | Update | Locking | bad |
|
|
|
2153
|
Tue Oct 27 19:37:03 2009 |
kiwamu | Update | LSC | cron job to diagnose LSC-timing | I set a cron job on allegra.martian to
run the
diagnostic script every weekend. |
|
|
2154
|
Wed Oct 28 05:02:28 2009 |
rob | Update | Locking | back | LockAcq is back on track, with the full
script working well. Measurements in
progress. |
|
|
2155
|
Wed Oct 28 09:12:18 2009 |
steve | Update | PSL | PMC power on the rise? | The PMC power is seems to be on the rise,
( MOPA_AMPMON is dropping ?) but I do not
think it is real. We have Santa Anna wind |
|
|
2156
|
Wed Oct 28 14:39:10 2009 |
steve | Update | PEM | after the tour of the 40m | Illuminators and PSL lights turned off.
HEPA filter speed increased from 20 to 100% |
|
|
2158
|
Thu Oct 29 13:48:32 2009 |
Koji | Update | PSL | NPRO LTMP lowered 9.5deg | 13:00 Found MC TRANS less than 7.
13:50 Go into the PSL table.
14:20 Work done. Now I am running |
|
|
2159
|
Thu Oct 29 18:04:02 2009 |
Jenne | Update | Adaptive Filtering | More work on saving coeffs on the OAF screen | [Sanjit,Jenne]
Sanjit has been working today on
trying to get the OAF coefficients to save |
|
|
2160
|
Thu Oct 29 18:25:33 2009 |
Sanjit | Update | Adaptive Filtering | More work on saving coeffs on the OAF screen |
|
|
|
2161
|
Thu Oct 29 20:21:14 2009 |
Koji | Update | PSL | NPRO LTMP lowered 9.5deg | Here is the plots for the powers. MC TRANS
is still rising.
What I noticed was that C1:PSL-FSS_PCDRIVE |
|
|
2162
|
Thu Oct 29 21:51:07 2009 |
rob | Update | Locking | bad |
|
|
|
2163
|
Fri Oct 30 04:41:37 2009 |
rob | Update | Locking | working again | I never actually figured out exactly what
was wrong in entry 2162,
but I managed to circumvent by changing the |
|
|
2165
|
Fri Oct 30 10:52:56 2009 |
Jenne | Update | PSL | HEPAs | Zach found the HEPA switch on the PSL table
OFF. He turned them on. |
|
|
2166
|
Sun Nov 1 17:58:44 2009 |
Jenne | Update | General | Update on Video Switch | The current update on the Chameleon video
switch is: no progress.
I connected the old laptop that Rob/Steve |
|
|
2167
|
Mon Nov 2 10:56:09 2009 |
kiwamu | Update | LSC | cron job works succesfully & no timing jitter | As
I wrote on Oct.27th, the cron job works
every Sunday. |
|
|
2168
|
Mon Nov 2 13:00:55 2009 |
Koji | Update | IOO | PMC aligned, MC WFS aligned | The beam to PMC aligned. The beam to MC
WFS cameras aligned.
PMC Trans increased from 2.73 to 2.75 |
|
|
2170
|
Mon Nov 2 15:27:08 2009 |
Jenne | Update | PEM | Gur2 cables have been moved | The cables labeled "Gur2" which
were connected to channels 2,3,4 of the PEM-ADCU
have been moved to the PCIX ADC which is |
|
|
2171
|
Mon Nov 2 21:09:15 2009 |
Sanjit | Update | Adaptive Filtering | More work on saving coeffs on the OAF screen |
I made some changes in the code (all
commented in the installed and SVN version) |
|
|
2172
|
Tue Nov 3 03:45:04 2009 |
rob | Update | IOO | frequency noise problem |
|
|
|
2174
|
Wed Nov 4 16:49:32 2009 |
Alberto | Update | LSC | Arm Cavity Finesse Measurement | I'm going to work on the X arm to measure
the arm cavity finesse.
The idea is to measure the cavity |
|
|
2175
|
Wed Nov 4 18:35:19 2009 |
Alberto | Update | LSC | Arm Cavity Finesse Measurement |
|
|
|
2176
|
Wed Nov 4 21:46:18 2009 |
Alberto | Update | LSC | Arm Cavity Finesse Measurement |
|
|
|
2177
|
Wed Nov 4 23:17:51 2009 |
Alberto | Update | LSC | X Arm Cavity transfer Function | I measured the transfer function between
MC_TRANS and TRX and I'm attaching the result.
|
|
|
2178
|
Thu Nov 5 05:07:22 2009 |
rana | Update | LSC | X Arm Cavity transfer Function | I would have guessed that you have to calibrate
the detectors relative to each other before
trying this. Its also going to be tricky |
|
|
2179
|
Thu Nov 5 12:34:26 2009 |
kiwamu | Update | Computers | elog rebooted | I found elog got crashed. I rebooted the
elog daemon just 10minutes before. |
|
|
2180
|
Thu Nov 5 16:24:40 2009 |
Jenne | Update | General | Drill Press is down for the count | The on/off switch for the drill press is
broken. Replacement parts should be
here tomorrow. |
|
|
2181
|
Thu Nov 5 16:24:59 2009 |
Koji | Update | CDS | ETMY CDS test stuff | Joe, Peter, Jay, Koji, Rana
We put the new CDS stuff at Y end
1Y9 rack. |
|
|
2182
|
Thu Nov 5 16:30:56 2009 |
pete | Update | Computers | moving megatron | Joe and I moved megatron and its
associated IO chassis from 1Y3 to 1Y9, in
preparations for RCG tests at ETMY. |
|
|
2184
|
Thu Nov 5 19:25:11 2009 |
Alberto | Update | LSC | X Arm Cavity transfer Function |
|
|
|
2185
|
Thu Nov 5 22:30:09 2009 |
Alberto | Update | LSC | X Arm Cavity Transfer Function | It seems that just repeating the measurement
was enough to get a good transfer function
of the x arm cavity. Here's what I got. |
|
|
2186
|
Thu Nov 5 23:09:34 2009 |
Alberto | Update | LSC | Y Arm Cavity Transfer Function | As for the X Arm, this the transfer function
I measured for the Y arm cavity.
|
|
|
2188
|
Fri Nov 6 00:24:06 2009 |
Alberto | Update | LSC | Y Arm Cavity Transfer Function |
|
|
|
2189
|
Fri Nov 6 00:40:29 2009 |
Alberto | Update | LSC | Everything put back as it was | I disconnected the setup for the arm cavity
TF measurement. I opened the scitation switch
on the ISS medm screen. I reconnected the |
|
|
2190
|
Fri Nov 6 07:55:59 2009 |
steve | Update | Computers | RFMnetwork is down | The RFMnetwork is down. MC2 sus damping
restored. |
|
|
2192
|
Fri Nov 6 10:35:56 2009 |
josephb | Update | Computers | RFM reboot fest and re-enabled ITMY coil drivers | As noted by Steve, the RFM network was
down this morning. I noticed that c1susvme1
sync counter was pegged at 16384, so I decided |
|
|
2193
|
Fri Nov 6 12:56:30 2009 |
Haixing | Update | SUS | Magnet has been levitated |
|
|
|
2194
|
Fri Nov 6 16:27:15 2009 |
Jenne | Update | PEM | Ranger moved | The Ranger seismometer has been moved to
~the middle of the Mode Cleaner tube, and
it's orientation has been changed to horizontal |
|
|
2196
|
Fri Nov 6 18:02:22 2009 |
josephb | Update | Computers | Elog restarted | While I was writing up an elog entry, the
elog died again, and I restarted it.
Not sure what caused it to die since no one |
|