| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
6680
|
Fri May 25 02:56:44 2012 |
Den | Update | SUS | MC3 local damping | I've terminated input to AA filters and
measured signal to coils C1:SUS-MC3_??COIL_OUT.
|
|
|
13901
|
Thu May 31 10:19:42 2018 |
gautam | Update | SUS | MC3 glitchy | Seems like as a result of my recent poking
around at 1X6, MC3 is more glitchy than usual
(I've noticed that the IMC lock duty |
|
|
9208
|
Sun Oct 6 22:27:35 2013 |
rana | Frogs | Electronics | MC3 LL sensor cable was loose | I noticed that the MC3 LL sensor was apparently
dead according to its suspension screen.
Since it was only the fast ADC channel and |
|
|
4685
|
Wed May 11 10:49:16 2011 |
valera | Configuration | Electronics | MC3 LL PD has no signal | Yesterday we found that MC3 OSEM LL PD
did not have a sensible signal - the readback
was close to zero and it was making MC move |
|
|
6681
|
Fri May 25 13:24:48 2012 |
Den | Update | SUS | MC3 | AA IN -> COIL DRIVER IN transfer function
for MC3
|
|
|
9794
|
Thu Apr 10 10:52:15 2014 |
manasa | Summary | IOO | MC2_TRANS path in WFS servo |
|
|
|
9869
|
Mon Apr 28 15:47:57 2014 |
manasa | Summary | IOO | MC2_TRANS QPD Servo trend |
|
|
|
9871
|
Mon Apr 28 20:31:38 2014 |
rana | Summary | IOO | MC2_TRANS QPD Servo trend | This is a 4-day trend. I don't see any
difference here which is significant. My
guess is that the MC_TRANS servo gain is |
|
|
9857
|
Fri Apr 25 23:08:57 2014 |
rana | Summary | IOO | MC2_TRANS QPD Servo re-re-engaged again | We turned on the MC2_TRANS paths for both
PIT/YAW tonight. |
|
|
9858
|
Sat Apr 26 13:19:59 2014 |
ericq | Summary | IOO | MC2_TRANS QPD Servo re-re-engaged again |
|
|
|
9886
|
Wed Apr 30 21:57:07 2014 |
rana | Summary | IOO | MC2_TRANS QPD Servo now on for real | |
|
|
7717
|
Fri Nov 16 00:08:36 2012 |
Koji | Update | SUS | MC2 woes | People complained about the MC instability:
If
we aligned the MC, it locked nicely for a |
|
|
2331
|
Wed Nov 25 12:28:22 2009 |
Jenne | Update | SUS | MC2 tripped | Just felt a big "kerplunk" type
ground-shaking, presumably from all the antics
next door. MC2's watchdog tripped as |
|
|
14883
|
Mon Sep 16 17:53:16 2019 |
aaron | Update | Cameras | MC2 trans camera (?) rotated | We noticed last week that the MC2 trans
camera has pitch and yaw swapped; I rotated
what I thought is the correct camera by 90 |
|
|
14884
|
Mon Sep 16 19:29:24 2019 |
Koji | Update | Cameras | MC2 trans camera (?) rotated | The left one is analog and 90deg rotated.
See also: This
issue tracker |
|
|
2077
|
Fri Oct 9 17:37:21 2009 |
Jenne | Update | IOO | MC2 trans beam is dumped | Last night while noise hunting, Rana found
that the MC2 trans beam has been left for
an unknown length of time just hitting the |
|
|
9102
|
Wed Sep 4 16:08:22 2013 |
manasa | Update | SUS | MC2 tickler turned OFF | [Jenne, Manasa]
While we were trying to relock the
MC after Jenne put back the RF box, we found |
|
|
9104
|
Wed Sep 4 20:39:23 2013 |
rana | Update | SUS | MC2 tickler turned OFF |
|
|
|
9107
|
Wed Sep 4 22:14:35 2013 |
Jenne | Update | SUS | MC2 tickler turned OFF |
|
|
|
9108
|
Thu Sep 5 00:40:33 2013 |
rana | Update | SUS | MC2 tickler turned OFF |
You're right - down turns it
on. Still, the fact that the same tickle |
|
|
15777
|
Tue Jan 26 10:58:30 2021 |
gautam | Update | SUS | MC2 tickler stuck on | For whatever reason, the autolocker didn't
turn the tickle off for several
hours. Seems to work okay now. The linked |
|
|
13737
|
Fri Apr 6 21:39:09 2018 |
gautam | Update | IOO | MC2 suspension health checkup | While Kevin is working on the MC2 electronics
chain - we disconnected the output to the
optic (DB15 connector on coil driver board). |
|
|
8169
|
Tue Feb 26 10:20:31 2013 |
Jamie | Update | SUS | MC2 suspension controller reverted to library part | I made good on my threat from yesterday
to convert the MC2 suspension controller
to the library part. Whatever changes |
|
|
2431
|
Fri Dec 18 15:40:33 2009 |
Koji | Update | IOO | MC2 spot centered / MCT QPD issue | This afternoon I felt like saying hello
to the input mode cleaner. So I decided to
center the spot on MC2. |
|
|
12973
|
Fri May 5 08:41:42 2017 |
Steve | Update | Cameras | MC2 resonant pictures | Olympus SP570 UZ - without IR blocker,
set up as Atm.3 Camera distance to
MC face ~85 cm, IOO-MC_TRANS_SUM |
|
|
5751
|
Fri Oct 28 03:12:37 2011 |
Suresh | Update | IOO | MC2 realigned to align MC to PSL | Around 6PM on the 27th, I found that the
C1:IOO-MC_RFPD_DCMON had risen to about 2.5V.
I checked the trend of MC2 sensors |
|
|
14804
|
Wed Jul 24 04:20:35 2019 |
Kruthi | Update | Calibration-Repair | MC2 pitch and yaw calibration | Summary: I calibrated MC2
pitch and yaw offsets to spot position in
mm. Here's what I did: |
|
|
9759
|
Fri Mar 28 20:23:02 2014 |
rana | Summary | IOO | MC2 moved | I aligned MC2 suspension by 0.01 in pit
and yaw to align the MC better to the PSL
beam. Then I turned the WFS back on. The |
|
|
9764
|
Mon Mar 31 11:34:00 2014 |
manasa | Summary | IOO | MC2 moved |
|
|
|
14788
|
Sun Jul 21 02:07:04 2019 |
Kruthi | Update | Loss Measurement | MC2 loss map | I'm running the MC2 loss map scripts
on pianosa now. The camera server is throwing
an error and is not grabbing snapshots :( |
|
|
14789
|
Sun Jul 21 12:54:18 2019 |
gautam | Update | Loss Measurement | MC2 loss map | Can you please be more specific about what
the error is? Is this the usual instability
with the camera server code? Or was it something |
|
|
14791
|
Sun Jul 21 17:17:03 2019 |
Kruthi | Update | Loss Measurement | MC2 loss map | The camera server keeps throwing the error:
failed to grab frames. Milind suggested that
it might a problem with the ethernet cable, |
|
|
14792
|
Sun Jul 21 19:27:25 2019 |
Milind | Update | Loss Measurement | MC2 loss map | I think ezca.Ezca().write() takes the string
"CAM-ETMX_SNAP" as an argument
and not C1:CAM-ETMX_SNAP. See this, |
|
|
14796
|
Mon Jul 22 12:57:35 2019 |
Kruthi | Update | Loss Measurement | MC2 loss map | In my script I have used "CAM-ETMX_SNAP"
only; while entering it in the elog
I made a mistake, my bad! |
|
|
1002
|
Fri Sep 26 19:18:39 2008 |
Jenne | Update | IOO | MC2 is having a bad day | As Steve mentioned earlier in today's elog,
MC2 keeps ringing up for no clear reason.
It is definitely only MC2 that is ringing |
|
|
2457
|
Mon Dec 28 12:35:57 2009 |
Jenne | Update | SUS | MC2 is having a bad day | MC2 is having a bad day, and I'm not yet
sure why. It's to do with the damping
though. When the damping is off, after |
|
|
2458
|
Mon Dec 28 12:45:55 2009 |
Koji | Update | SUS | MC2 is having a bad day | The MCL path of MC2 was in a strange state
as the filters were activated as if it is
in lock even though we had no lock. So I |
|
|
5862
|
Thu Nov 10 12:28:31 2011 |
Jenne | Update | SUS | MC2 is being a little wild...WFS to blame | Mirko and Den are measuring MC_F,
which they will report about later, but I
noticed that MC2 is totally crazy right now. |
|
|
5877
|
Fri Nov 11 21:09:30 2011 |
Suresh | Update | SUS | MC2 is being a little wild...WFS to blame |
|
|
|
7276
|
Sun Aug 26 11:53:09 2012 |
Jenne | Update | IOO | MC2 getting kicked up regularly | We need to re-look at this new MC autolocker
stuff, and the new MCL filters.
MC2 is getting kicked up (sometimes |
|
|
4146
|
Wed Jan 12 22:33:24 2011 |
kiwamu | Update | CDS | MC2 dewhitening are healthy except for UR | I briefly
checked the MC2 analog dewhitening filters.
It |
|
|
13174
|
Wed Aug 9 11:33:49 2017 |
gautam | Update | Electronics | MC2 de-whitening | Summary:
The analog de-whitening filters
for MC2 are different from those on the other |
|
|
2033
|
Thu Oct 1 10:23:00 2009 |
steve | Update | PSL | MC2 damping restored again | The EQ did not change the input beam
pointing. All back to normal, except MC2
wachdogs tripped again. |
|
|
2034
|
Thu Oct 1 11:39:47 2009 |
Jenne | Update | SUS | MC2 damping restored again |
|
|
|
1607
|
Tue May 19 15:57:07 2009 |
steve | Update | IOO | MC2 damping restored after EQ | Earthquake mag 4.0 at Lennox, Ca
trips MC2 watchdogs
http://quake.usgs.gov/recenteqs/Quakes/ci10411545.html |
|
|
996
|
Fri Sep 26 09:05:47 2008 |
steve | Update | SUS | MC2 damping restored | The MC2 sus damping was restored. |
|
|
1300
|
Fri Feb 13 08:38:03 2009 |
steve | Update | IOO | MC2 damping restored | |
|
|
2207
|
Mon Nov 9 08:43:16 2009 |
steve | Update | SUS | MC2 damping restored | MC2 damping restored, MZ locked and
the arms are flashing now. |
|
|
7268
|
Fri Aug 24 09:21:45 2012 |
Steve | Update | IOO | MC2 damping restored |
|
|
|
15468
|
Fri Jul 10 15:26:28 2020 |
gautam | Update | LSC | MC2 coils need DC balancing? | I was looking at some signals from last
night, see Attachment |
|