| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
1669
|
Thu Jun 11 22:14:10 2009 |
Alberto | Update | LSC | DD Handoff for the Short DOFs completed | This afternoon I tuned the handoff script
for the SRC, after that Rob eralier during
the day had already adjusted that for PRC. |
|
|
1668
|
Thu Jun 11 14:54:18 2009 |
josephb, alberto | Update | Computers | Wireless network | After poking around for a few minutes several
facts became clear:
1) At least one GPIB interface has |
|
|
1667
|
Thu Jun 11 03:15:15 2009 |
Alberto | Update | LSC | DD Handoff attempts | Pete, Alberto,
tonight we worked on the tuning of
the double demod phases for the handoff of |
|
|
1666
|
Wed Jun 10 09:28:14 2009 |
steve | Update | PSL | PMC | The PMC alarm was on this morning. It was
relocked at lower HV
The FSS_RMTEMP jumped 0.5 C so The |
|
|
1665
|
Wed Jun 10 09:06:12 2009 |
steve | Update | PEM | particle counts and turbulance | I moved the mobile HEPA filter from ITMX's
north door to ITMX-ISCT and covered it up
with a merostate tent to accommodate the |
|
|
1664
|
Wed Jun 10 01:52:34 2009 |
Alberto | Update | Electronics | MC length and Marconis' frequencies | Pete, Rob, Alberto,
yesterday we thought that some of
the problems we were having in locking the |
|
|
1663
|
Tue Jun 9 23:25:24 2009 |
rob | Update | Locking | ? |
|
|
|
1662
|
Tue Jun 9 11:29:07 2009 |
Jenne | Update | oplevs | Measured ETMY oplev beam size...put everything back | I measured the ETMY oplev beam size at
a couple different distances away from the
HeNe by taking out the steering mirror and |
|
|
1661
|
Mon Jun 8 18:22:27 2009 |
Alberto | DAQ | LSC | Added PD11 I amd Q slow channels | I just added two slow channels to C0EDCUEPICS
to monitor the input of PD11. The names are:
[C1:LSC-PD11_I_INMON] |
|
|
1660
|
Sun Jun 7 04:57:39 2009 |
Yoichi | Update | Locking | ? |
|
|
|
1659
|
Sat Jun 6 01:44:53 2009 |
rob | Update | Locking | ? | Lock acquisition is proceeding smoothly
for the most part, but there is a very consistent
failure point near the end of the cm_step |
|
|
1658
|
Fri Jun 5 17:22:55 2009 |
pete | Update | Locking | daytime locking | After fixing the tp problem, I tried locking
again. Grabbing and DD handoff, no
problem. Died earlier than last night, |
|
|
1657
|
Fri Jun 5 16:45:28 2009 |
rob, pete | HowTo | Computers | tdsavg failure in cm_step script |
|
|
|
1656
|
Fri Jun 5 13:51:49 2009 |
rob | Update | Locking | tdsavg failure in cm_step script |
|
|
|
1655
|
Fri Jun 5 02:59:03 2009 |
pete, alberto | Update | Locking | tdsavg failure in cm_step script | the command
tdsavg 5 C1:LSC-PD4_DC_IN1
was causing grievous woe in the cm_step |
|
|
1654
|
Fri Jun 5 01:10:13 2009 |
rob, pete | Update | Locking | undermined | We were stymied early in the evening by
a surreptitiously placed, verbo-visually
obfuscated command in the drstep script. |
|
|
1653
|
Thu Jun 4 23:39:23 2009 |
pete | Update | PEM | 5 days, 20 days of accelerometers | Looks like yesterday was particularly noisy.
It's unclear to me why diurnal variation
much more visible in MC1_Y, and why the floor |
|
|
1652
|
Thu Jun 4 16:54:19 2009 |
pete | Update | Locking | daytime DD handoff | I played with the DD handoff during the
day. The DRM dark port was flickering
like a candle flame in Dracula's castle. |
|
|
1651
|
Thu Jun 4 15:53:15 2009 |
steve | Update | PSL | NPRO cooling flowrate adjusted | The Neslab chiller is working well. It's
temp display shows 20.0 C rock solid. Flow
meter rotating at 13.5Hz at the out put of |
|
|
1650
|
Thu Jun 4 01:32:20 2009 |
rob | Configuration | LSC | AS port mode scan | Here is a set of mode scans of the AS port,
using the OMC as a mode scanner. The
plot overlays various configurations of the |
|
|
1649
|
Wed Jun 3 18:55:27 2009 |
rana | Update | COC | snapshot of upgrade layout | |
|
|
1648
|
Wed Jun 3 12:31:13 2009 |
caryn | Update | PEM | plugged in guralp channels | |
|
|
1647
|
Wed Jun 3 11:28:01 2009 |
caryn | Update | PEM | Unplugged Guralp channels | |
|
|
1646
|
Wed Jun 3 03:30:52 2009 |
rana | Update | MOPA | NPRO current adjust | I increased the NPRO's current to the max
allowed via EPICS before the chiller shutdown.
Yesterday, I did this
|
|
|
1645
|
Wed Jun 3 03:22:16 2009 |
pete | Update | Locking | DD handoff | Rana, Alberto, Pete
We have the DD handoff nominally
working. Sometimes, increasing the |
|
|
1644
|
Tue Jun 2 23:55:45 2009 |
Alberto | Update | oplevs | oplevs centerd | Tonight I centered the oplevs for ITMX/Y,
SRM, PRM, BS.
After doing that I noticed that the |
|
|
1643
|
Tue Jun 2 23:53:12 2009 |
pete | DAQ | Computers | reset c1susvme1 | rob, alberto, rana, pete
we reset this computer, which was
out of sync (16384 in the FE_SYNC field instead |
|
|
1642
|
Tue Jun 2 23:12:08 2009 |
rob | Configuration | Computers | ntp on op440m | I restarted ntpd on op440m to solve a "synchronization
error" that we were having in DTT.
I also edited the config file (/etc/inet/ntp.conf) |
|
|
1641
|
Tue Jun 2 02:28:58 2009 |
pete | Update | Locking | DD handoff work | alberto, pete
We worked on tuning the DD handoff |
|
|
1640
|
Mon Jun 1 19:19:26 2009 |
rana | Update | PSL | 1000 days of hour-trend | |
|
|
1639
|
Mon Jun 1 15:01:31 2009 |
rana | Update | PSL | Laser Power after fixing the laser chiller: more traces | If you look at the correlation between RMTEMP
and HTEMP, you see what we knew: namely that
there
|
|
|
1638
|
Mon Jun 1 14:49:07 2009 |
rob | Summary | PSL | psl thoughts | Some thoughts on what happened with the
MOPA cooling.
Some unknown thing happened to precipitate |
|
|
1637
|
Mon Jun 1 14:33:42 2009 |
rob | Configuration | Computer Scripts / Programs | op540m Monitor added to web status | I added op540m's display 0 (the northern-most
monitor in the control room) to the MEDM
screens webpage: https://nodus.ligo.caltech.edu:30889/medm/screenshot.html |
|
|
1636
|
Mon Jun 1 13:56:52 2009 |
Alberto | Update | PSL | Laser Power after fixing the laser chiller | The laser power seems to have become more
stable after fixing the laser chiller. The
power is lower than it used to be (MOPA amplitude |
|
|
1635
|
Mon Jun 1 13:25:00 2009 |
rob | Update | Computers | c1susvme2, c1iscex running late |
|
|
|
1634
|
Sat May 30 12:36:52 2009 |
rob | Update | Computers | c1susvme2, c1iscex running late | c1susvme2 has been running just a bit late
for about a week. I rebooted it.
The plot shows SRM_FE_SYNC, which |
|
|
1633
|
Sat May 30 12:03:34 2009 |
rob | Update | PSL | MC locked | I locked to PSL loops, then tweaked the
alignment of the MC to get it to lock.
I first steering MC1 until all the |
|
|
1632
|
Sat May 30 11:24:56 2009 |
rob | Configuration | PSL | NPRO slow scan | I'm setting SLOWDC to about -5.
I had to edit FSSSlowServo because
it had hard limits on SLOWDC at (-5 and 5). |
|
|
1631
|
Fri May 29 18:57:09 2009 |
steve | Update | PSL | the laser is back | Steve, Rob and Alberto
Starting capacitor 216 miroFarad |
|
|
1630
|
Thu May 28 18:41:26 2009 |
steve | Update | PSL | the saga of the chiller is ending | I drained the water and removed side covers
from the Neslab RTE 140 refrigerated water
cooler unit this morning. The hoses to the |
|
|
1629
|
Thu May 28 14:34:25 2009 |
rob | Update | PSL | chiller diagnosis |
|
|
|
1628
|
Wed May 27 15:59:44 2009 |
rob | Update | PSL | we don't understand the chiller (broken) | steve, alberto, rob
After some futzing around with the
chiller, we have come to the tentative conclusion |
|
|
1627
|
Wed May 27 10:54:09 2009 |
rob | Update | PSL | we don't understand the chiller (broken) |
|
|
|
1626
|
Tue May 26 17:34:14 2009 |
rob | Update | PSL | MOPA re-deactivated |
|
|
|
1625
|
Tue May 26 17:05:44 2009 |
rob | Update | PSL | MOPA re-activated | steve, rob, alberto
Steve installed two rotary flow meters |
|
|
1624
|
Mon May 25 21:31:47 2009 |
caryn | Update | PEM | plugged in Guralp channels | Guralp Vert1b and Guralp EW1b are plugged
back in to PEM ADCU #10 and #12 respectively.
Guralp NS1b remains plugged in. So, |
|
|
1623
|
Sun May 24 11:24:08 2009 |
rob | Update | Computers | elog restarted | I just restarted the elog. It was
crashed for unknown reasons. The restarting
instructions are in the wiki. |
|
|
1622
|
Fri May 22 17:05:24 2009 |
rob, pete | Update | Computers | hard reboot of vertex suspension controllers | we did a hard reboot of c1susvme1, c1susvme2,
c1sosvme, and c1susaux. We are hoping
this will fix some of the weird suspension |
|
|
1621
|
Fri May 22 17:03:14 2009 |
rob, steve | Update | PSL | MOPA takes a holiday | The MOPA is taking the long weekend off.
Steve went out to wipe off the condensation
inside the MOPA and found beads of water |
|
|
1620
|
Fri May 22 01:27:14 2009 |
pete | Update | SUS | 200 days of MC3 side | Looks like something went nuts in late
April. We have yet to try a hard reboot. |
|