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ID Date Authorup Type Category Subject
  9039   Tue Aug 20 10:59:15 2013 SteveUpdateGreen LockingXend green layout corrections

Quote:

 Shutter moved, no more clipping.

Pick-off mirror 2" replaced by 1" one. Laseroptik HR 532nm, incident angle 30-45 degrees, AR 532 nm

Green REFL PD moved to 4" close to pick-off mirror. Pd being close to pick-off does not separate multiple reflections on it. I'll replace Laseroptic mirror with Al one. It is not easy to find.

 Hole cut into side wall for doubler oven cable to exit.

 

 

 Beam trap for Pd refl is in place. Cabeling is ti·died up.

 Laseroptic 1" mirror is replaced by Al 1" mirror. Problem remains the same. This diffraction patter has to be coming from the Faraday.

  Atm1, good separation when Pd is far 

  Atm2, bad separation when Pd is close 

Attachment 1: faraway.jpg
faraway.jpg
Attachment 2: closer.jpg
closer.jpg
  9083   Wed Aug 28 11:15:02 2013 SteveUpdateGreen LockingXend green layout corrections

Quote:

Quote:

 Shutter moved, no more clipping.

Pick-off mirror 2" replaced by 1" one. Laseroptik HR 532nm, incident angle 30-45 degrees, AR 532 nm

Green REFL PD moved to 4" close to pick-off mirror. Pd being close to pick-off does not separate multiple reflections on it. I'll replace Laseroptic mirror with Al one. It is not easy to find.

 Hole cut into side wall for doubler oven cable to exit.

 

 

 Beam trap for Pd refl is in place. Cabeling is ti·died up.

 Laseroptic 1" mirror is replaced by Al 1" mirror. Problem remains the same. This diffraction patter has to be coming from the Faraday.

  Atm1, good separation when Pd is far 

  Atm2, bad separation when Pd is close 

 The extra high post 3.375"  for PZT is ready. We also have 2 more 2" green Laseroptik mirrors. I'm ready to swap them in.

The  75 mm  focal length  lens  was placed in front of the green REFL PD yesterday.

  9084   Wed Aug 28 11:23:41 2013 SteveUpdateVACcrane repair sheduled

Quote:

 1, Vacuum envelope grounds must be connected all times!  After door removal reconnect both cables immediately.

 2, The crane folding had a new issue of getting cut as picture shows.

 3, Too much oplev light is scattered. This picture was taken just before we put on the heavy door.

 4, We were unprepared to hold the smaller side chamber door 29" od of the IOC

 5, Silicon bronze 1/2-13 nuts for chamber doors will be replaced. They are not smooth turning.

 

 Fred Goldbar of KoneCranes will come 7:30am Wednesday, September 4 to look at this issue.

It is changed to Thursday morning.

  9085   Wed Aug 28 15:41:42 2013 SteveUpdateVACRGA scan at day 23

 Valve configuration: Vacuum Normal

pd76-m-d23

 

Attachment 1: pd75md23.png
pd75md23.png
  9092   Fri Aug 30 14:31:57 2013 SteveUpdateGeneralcleaning up

I cleaned up around MC2 and 1Y1 area this morning.

ETMY NPRO moved from the side to the center of the low shelf. Thorlab catalog " as spacer " removed after lunch.

The Lightwave Controller values: LT 40.4C,  LTEC +0.1V,  T 41.041C,  Pwr 239 mW,  Adj 0,  DC 1.82A,  DPM  0.0V,  Neon OFF,  Ldon OFF,  Display 5,  DT 21.0C,  Dtec +1.0V

 

Attachment 1: MC2areaCP.jpg
MC2areaCP.jpg
Attachment 2: 1Y1areaCleanedUp.jpg
1Y1areaCleanedUp.jpg
Attachment 3: ETMY_NPROmoved.jpg
ETMY_NPROmoved.jpg
  9097   Tue Sep 3 10:54:33 2013 SteveHowToGeneralHow To Coil Cables

Quote:

 http://youtu.be/pEd7ru24Vx0

 B grade Nobel is awarded.

                                  If cables could dream?

This skill should be  mandatory for LIGOX graduates.

  9098   Tue Sep 3 14:23:21 2013 SteveUpdatePEM earthquakes

 ~Vancuver, Canada earthquakes: magnitude 6,  5  and more shaking

 

Attachment 1: EQm6&5.png
EQm6&5.png
  9110   Thu Sep 5 10:28:17 2013 SteveUpdateSUSPRM side

I think the crane repair guy accidentally  stepped on the  BSC support beam.

PRM side is not coming down.

Attachment 1: craneguywashere.png
craneguywashere.png
  9111   Thu Sep 5 10:47:58 2013 SteveUpdateVACvertex crane folding issue

 

 [Fred Goldbar, Mike Gerfen, Dennis Coyne and Steve]

We inspected the hinge, 1.25" cross pin and I-beams. It is hard to explain what is  causing the folding I-beam corner to jam against the main I-beam.

To limit the motion of the folding I-beam  cross pin bushing will be added. This will take a week to complete.

 

 

 

 

 

Attachment 1: 5mmLess.jpg
5mmLess.jpg
  9115   Fri Sep 6 09:27:10 2013 SteveUpdateVAC31 days after pumpdown

Quote:

 Valve configuration: Vacuum Normal

 

 

Attachment 1: day31vac.png
day31vac.png
  9117   Mon Sep 9 15:33:06 2013 SteveUpdateVACvertex crane repair is scheduled

Quote:

 

 [Fred Goldbar, Mike Gerfen, Dennis Coyne and Steve]

We inspected the hinge, 1.25" cross pin and I-beams. It is hard to explain what is  causing the folding I-beam corner to jam against the main I-beam.

To limit the motion of the folding I-beam  cross pin bushing will be added. This will take a week to complete.

 

 

 

 

 

 KoneCrane contact John McDaniel (562) 903 - 1371,

Wednesday, September 18,  folding I-beam will be removed.  KoneCrane will start working at 7:30am and they should be out by 12:30pm

 Friday,  September 20, reinstalling machined hinge on the I-beam. Same timing schedule as Wednesday.

  9119   Tue Sep 10 09:18:22 2013 SteveUpdateVACdry pump is getting loud

 

 TP3 foreline's dry pump is getting noisier and noisier.  Turbo TP3 is pumping on the annulos. The foreline pressure is 7.2 mTorr and it is not degrading. It was swapped in March 5, 2013

The seal is very good, but the bearing is dying.

 

 

 

  9120   Tue Sep 10 15:43:01 2013 SteveUpdateVACTP3' dry pump is replaced

Quote:

 

 TP3 foreline's dry pump is getting noisier and noisier.  Turbo TP3 is pumping on the annulos. The foreline pressure is 7.2 mTorr and it is not degrading. It was swapped in March 5, 2013

The seal is very good, but the bearing is dying.

 

 

 

 The drypump is replaced at 95,781 hrs on TP3 controller time. The foreline pressure is 30 mTorr and dropping.

 It is 13 mTorr after 17 hours of pumping.

  9129   Mon Sep 16 10:57:11 2013 SteveUpdateVACRGA scan at day 41

Quote:

 Valve configuration: Vacuum Normal

 

 Finally we reached 1.0e-5 Torr, cc1 (h) at day 41. There must be a leak or cold cathode gauge is not reading correctly. The gauge is new. It should not take this long.

All chamber annulos pressures are normal.

Attachment 1: pd76m41dRGA.png
pd76m41dRGA.png
Attachment 2: pd76m41d.png
pd76m41d.png
  9139   Wed Sep 18 14:57:12 2013 SteveUpdateVACvertex crane folding arm removed

 The folding beam removed as shown. Two man supporting it while I hammering it out. Pin was dry and it gulled into supporting hinges.

The rotating hinge will be machined and bushing will be added with Zerk fitting or similar. This will allow lubrication in the future.

 see elog #9111

Attachment 1: manPower.jpg
manPower.jpg
Attachment 2: rotatingHinge.jpg
rotatingHinge.jpg
Attachment 3: supportingHinge.jpg
supportingHinge.jpg
Attachment 4: gullingPin.jpg
gullingPin.jpg
  9140   Thu Sep 19 10:24:58 2013 SteveUpdatePEMPRM damping restored after earth quake

Local m3.8 eq shakes PRM lose.

Attachment 1: eq3.8mLaVerne.png
eq3.8mLaVerne.png
  9144   Fri Sep 20 08:15:30 2013 SteveUpdateComputer Scripts / ProgramsOttavia, Rossa and Pianosa

Ottavia, Rossa  and Pianosa are running out of storage  space.

Attachment 1: Ottavia.png
Ottavia.png
Attachment 2: Rossa.png
Rossa.png
Attachment 3: Pianosa.png
Pianosa.png
  9145   Fri Sep 20 09:49:06 2013 SteveUpdateSUSOptical Lever Trend for 180 days: bad ETMY & PRM

I'm working on it.

Attachment 1: ETMYoplevPRM.png
ETMYoplevPRM.png
  9146   Fri Sep 20 16:37:30 2013 SteveUpdateVACvertex crane folding arm is back on

Quote:

 The folding beam removed as shown. Two man supporting it while I hammering it out. Pin was dry and it gulled into supporting hinges.

The rotating hinge will be machined and bushing will be added with Zerk fitting or similar. This will allow lubrication in the future.

 see elog #9111

Atm1,  The folding arm is back on with 0.1" misalignment at no load in the trolly's way. The other side of the I beam is 0.02" higher than the main beam.. New bushing and pin were greased up  with Krytox before installation.

The axial Zerk 1/8" pipe in the pin upper end can not take any fitting. There is no room. It is taped off.

This gap comes down to ~ 1/16" at fully extended arm with 225 lbs load at the end of it.

The present plan is to grind down the  the misalignment of 0.1"  for a slow-loaded trolly.

Steve Baker of Konacranes will be back to grind down this ridge and load test at 500 lbs on Tuesday,  OCT  1, 2013

 

 

 

Attachment 1: bushingBottom.jpg
bushingBottom.jpg
Attachment 2: foldingI.jpg
foldingI.jpg
Attachment 3: noLoadGap.jpg
noLoadGap.jpg
Attachment 4: trollyway.jpg
trollyway.jpg
Attachment 5: trollySee.jpg
trollySee.jpg
  9164   Thu Sep 26 10:55:29 2013 SteveUpdateGeneralY-arm floor space for test

Liyuon will set up a  ~5 mW He/Ne laser for  waist measurement for LIGO oplev telescope.

This  will be between the beam tube and the CES wall. He will do his tests in the morning.

  9165   Thu Sep 26 11:00:51 2013 SteveUpdateSUSProblems with ETMY Optical Lever

We are out of JDSU-Uniphase 1103P heads. I'm ordering some right now. I'm planning to make some corrections on Rana's list tomorrow morning at ETMY.

  9173   Mon Sep 30 08:53:22 2013 SteveUpdateVACvertex crane repair schedule has changed

Quote:

Quote:

 The folding beam removed as shown. Two man supporting it while I hammering it out. Pin was dry and it gulled into supporting hinges.

The rotating hinge will be machined and bushing will be added with Zerk fitting or similar. This will allow lubrication in the future.

 see elog #9111

Atm1,  The folding arm is back on with 0.1" misalignment at no load in the trolly's way. The other side of the I beam is 0.02" higher than the main beam.. New bushing and pin were greased up  with Krytox before installation.

The axial Zerk 1/8" pipe in the pin upper end can not take any fitting. There is no room. It is taped off.

This gap comes down to ~ 1/16" at fully extended arm with 225 lbs load at the end of it.

The present plan is to grind down the  the misalignment of 0.1"  for a slow-loaded trolly.

Steve Baker of Konecranes will be back to grind down this ridge and load test at 500 lbs on Tuesday,  OCT  1, 2013

 

 

 

 Konecranes rescheduled the completion of the Vertex crane to Wednesday, Oct. 2

  9180   Tue Oct 1 10:06:27 2013 SteveUpdatePEMparticle counts

How can we improve the cleanliness of the 40m IFO room 104 ? May be Mario Batali crocs if you chief chef of the lab likes it. We can do more effective things.

Atm 1 is showing the lab air quality dependence on outside air  measured at the top of the IOO chamber. This made me to measure the   differential  pressure between lab and out side.

Properly sized air conditioner is over pressurizing it's room by 0.05 [" Water] like clean assembly room.

The 40m at Vertex location is barely getting pressurized to 0.01 " W

The control room is OK with 0.04 " W but it's air quality is very bad! It is 10x worse at 0.5 micron than IFO room.

Every entry from well pressurized control room into barely pressurized  IFO  pumps dirty air to our "clean room."

This door should be closed.

The drill- room entry is ideal because it is using the same air conditioner as the  main lab, therefore it has cleaner air.

 

Things to do: seal holes of CES walls, seal paint wall at south end so it will shed less, replace gas kits on doors.

I have plugged the cable tray space entering the control room above Rosalba.

Attachment 1: 3xJuly4Cal.png
3xJuly4Cal.png
Attachment 2: whichOne.jpg
whichOne.jpg
  9185   Wed Oct 2 14:25:39 2013 SteveUpdateVACvertex crane is still out of order

 

The smoke alarms were turned off and surrounding areas were covered with plastic.

The folding I-beam was ground down to be in level with the main beam.

Load bearing cable moved into correct position. New folding spring installed.

Crane calibration was done at 500 lbs at the end of the fully extended jib.

Than we realized that the rotating wheel limit switch stopped working.

This means that the crane is still out of order.

 

Attachment 1: grindingIbeam.jpg
grindingIbeam.jpg
Attachment 2: cableMoved.jpg
cableMoved.jpg
Attachment 3: 500lbs@end.jpg
500lbs@end.jpg
  9196   Thu Oct 3 09:49:49 2013 SteveUpdateSUSETMY oplev laser is sick

Quote:

As another proof that sometime is ill with ETMX Optical Lever:

We scanned the ETMX bias in PIT using ezcastep and saw that the OL response is very screwy. In the attached, you can see that the ETMX SUSPIT signal shows that the actual motion is good and linear. In fact, our sus diagonalization is extermely good and there's almost no signal in SUSYAW.

 ETMY oplev laser clearly showing a tail when it was projected up the sealing.

PS (10-4-2013): I checked the beam quality again as it was removed from the table: it had a good image at 3 meters

  9212   Mon Oct 7 10:51:18 2013 SteveUpdateSUSReplaced the laser for Optical Lever of ETMY

 Just plot.

RA: I'm not sure how to interperet this; I think that the SUM channel is divided by the SUM so that this is supposed to be RIN, but not sure. Can someone please take a look into the SUS model and then explain in the elog what the SUM normalization algorithm is?

Attachment 1: ETMXoplevETMY.png
ETMXoplevETMY.png
Attachment 2: oplevSettings.png
oplevSettings.png
  9220   Tue Oct 8 08:58:16 2013 SteveUpdateSUSOplev power spectrums

Quote:

 Just plot.

RA: I'm not sure how to interperet this; I think that the SUM channel is divided by the SUM so that this is supposed to be RIN, but not sure. Can someone please take a look into the SUS model and then explain in the elog what the SUM normalization algorithm is?

 

PRM is dark. PRM and SRM oplev servos are off. ETMY is not centered.

Attachment 1: ITMoplevServoValues.png
ITMoplevServoValues.png
Attachment 2: oplevPSpectrums_darkPRM.png
oplevPSpectrums_darkPRM.png
Attachment 3: BSoplevServoValues.png
BSoplevServoValues.png
  9221   Tue Oct 8 11:29:30 2013 SteveUpdatePEMno Janitor day today

This was the second week without wet mopping the floor and wet wipe down of the vacuum envelope.

We changed filters on the 40m "HEPA" vacuum pump. It still has very dirty exhaust. Do not use it in clean room!

Attachment 1: dirtyVacpump.jpg
dirtyVacpump.jpg
  9223   Wed Oct 9 11:48:10 2013 SteveUpdateVACRGA scan at day 65

 

 Valve configuration: Vacuum Normal

Attachment 1: scanRGApd76m65d.png
scanRGApd76m65d.png
Attachment 2: pd76m65d.png
pd76m65d.png
  9224   Wed Oct 9 15:00:48 2013 SteveUpdatePEMfreshmen tour

 [Alan, Koji, Manasa]

Record number of 50 freshmen were given tour of the 40m this afternoon.

Attachment 1: freshmen2013.jpg
freshmen2013.jpg
  9229   Thu Oct 10 08:25:07 2013 SteveUpdatesafetyChris received safety training

Chris Couste, our new undergrad help received 40m specific, basic safety training yesterday.

  9230   Thu Oct 10 11:30:15 2013 SteveUpdateSUSOplev power spectrums: PIT-YAW

 

Power spetrum of ETMX and ETMY in the view of oplev  pitch and yaw.

Attachment 1: PitYawOLetmXY.png
PitYawOLetmXY.png
  9241   Tue Oct 15 15:25:13 2013 SteveUpdateSUSOplev power spectrums bandwidths

  Atm1 bandwidth 0.01 Hz ETMY plot is different from

Atm2 bandwidth 0.1 Hz  normal ???????    They should be the same !!!!

Attachment 1: BW0.01oplevPS.png
BW0.01oplevPS.png
Attachment 2: oplevPSetmXYclosed.png
oplevPSetmXYclosed.png
  9246   Wed Oct 16 10:32:40 2013 SteveUpdateSUSFlowbench effect on oplev error signals

 ETMX _OPLEV_...ERROR signals are effected by turning ON the  flow bench motor  at the south end 

 The broadband noise [~ 5-60 Hz] is much higher when the motor is running.

The flow bench was turned off.

 

 

Attachment 1: FlowBenchOnOff.png
FlowBenchOnOff.png
  9253   Fri Oct 18 08:12:08 2013 SteveUpdatePEM1000 days trends
Attachment 1: trend1000days.png
trend1000days.png
  9254   Fri Oct 18 15:18:49 2013 SteveUpdatePEM particle count peak or ...

Sunday evening fireworks. Manasa heard it.

Attachment 1: PEMcount?.png
PEMcount?.png
Attachment 2: PemCountPeak?No.png
PemCountPeak?No.png
  9255   Mon Oct 21 09:46:12 2013 SteveUpdatePSLLaser just turned on

I have just turned on the PSL Innolight laser. The laser shut down  with unknown reason a day ago.

Attachment 1: laserTurnedON.png
laserTurnedON.png
  9257   Tue Oct 22 10:12:33 2013 SteveUpdatePEM south arm AC intake duct checked

  The 4th week of no wet mopping of the floor  and no wet wiping  the vacuum envelope.

 

We cleaned the intakes of the south arm IFO air condition. The bottom duct have quite a bit accumulation Atm1

See wet wiped contrast on Atm2

We found 3 holes around pipes ( coming from CES ) on the east wall that has to be sealed.

After closer examination of these holes, they are sealed off well.

Attachment 1: PEM0.5micron60d.png
PEM0.5micron60d.png
Attachment 2: southArmIntakeNorth.jpg
southArmIntakeNorth.jpg
Attachment 3: SouthArmMidIntakeWipe.jpg
SouthArmMidIntakeWipe.jpg
  9262   Wed Oct 23 09:17:33 2013 SteveUpdateSUSETMY sensors compared to ETMX

 ETMY sensors are glitching or getting kicked up.

Atm3, There is no seismic activity here.

 

Attachment 1: ETMYglitching.png
ETMYglitching.png
Attachment 2: OSEMsensorsETMY&X.png
OSEMsensorsETMY&X.png
Attachment 3: ETMYgettingKickedUp.png
ETMYgettingKickedUp.png
Attachment 4: drive-damp.png
drive-damp.png
  9275   Thu Oct 24 08:04:54 2013 SteveUpdateLSCPRMI + 2 ALS arms

 

 Nice work. Congratulation

  9277   Thu Oct 24 10:31:25 2013 SteveUpdateSUSETMY sensors compared to ETMX

Atm1,  The strong glitches are back.

Atm2,  SUS-ETMX & Y_SENSOR_LL Damping OFF at (ref0 & ref1). damping ON (red & blue)

ETMY sus looks OK

 

Attachment 1: 24h_glitching.png
24h_glitching.png
Attachment 2: dampingOffref.png
dampingOffref.png
  9281   Thu Oct 24 17:18:44 2013 SteveUpdateSUSETMY oplev error signals are still bad

Quote:

 Just plot.

RA: I'm not sure how to interperet this; I think that the SUM channel is divided by the SUM so that this is supposed to be RIN, but not sure. Can someone please take a look into the SUS model and then explain in the elog what the SUM normalization algorithm is?

 

Attachment 1: ETMY_OPLEV_ERRORS.png
ETMY_OPLEV_ERRORS.png
  9291   Fri Oct 25 10:45:16 2013 SteveUpdatePSLlaser drift monitor set up

Quote:

Quote:

I wonder what's drifting between the laser and the PMC? And why is it getting worse lately?

 The PMC refl is bad in pitch today, and the transmission is only 0.76, rather than our usual 0.83ish.

I did a quick, rough tweak-up of the alignment, and now we're at 0.825 in transmission.

 The PMC transmission continuously degrades. In order to see what is really drifting the laser output after PBS was sampled as shown.

Attachment 1: laserDriftMon.jpg
laserDriftMon.jpg
Attachment 2: PMCT_120d.png
PMCT_120d.png
Attachment 3: PMCT_1000d.png
PMCT_1000d.png
  9319   Wed Oct 30 14:58:44 2013 SteveHowToGeneralshutting down a computer

 

 We have tried to ssh into c1iscey yesterday morning. It just did not work. We have just tried it again (now) and it did work.

Lesson learned: always shut down the computer from a TERMINAL Do not turn it off by the manual power switch.

  9325   Fri Nov 1 09:45:32 2013 SteveUpdateIOObeam dumps to be find

Quote:

Quote:

Steve, can you please put 2 mounted  razor dumps near the WFS for this purpose??    

            Tuesday: Razor dumps are waiting for you.

 I couldn't find any dumps near the WFS. Koji looked. I looked twice. Maybe they are spooky and absorbing all of the light?

The MC alignment was bad and the WFS were making it drift. Koji aligned the beam into the PMC. I then restored the MC suspensions to where they were 8 days ago (back when the transmission and reflection were good). With the WFS OFF, this gave us a MC trans ~ 16000. With WFS ON it goes to 17500 which is about as good as its been over the last 80 days.

I centered the beam on the WFS with the MC unlocked and also centered the beam on the whole WFS path (it was near clipping between WFS 1 & 2). Also for some reason that beamsplitter which steers the beam onto WFS1 is a R=33% (!? why is this not a R=50% ??).

Steve, please swap this out to a BS1-1064-50-1025-45S if we have one sitting around. If not, we want to add this to the CVI purchase list, but not buy until we get a bigger list together.

I also centered this newly aligned beam into the IMC onto the PSL QPDs. We should now use these as a pointing reference for the beam into the IMC.

While doing this I noticed that the beam was almost clipping on the Uniblitz shutter used to block the PSL beam. That shutter is mounted too short and was also not centered horizontally. I removed it for now so that Steve can find a more adjustable mount for it and put it back into play. The beam going into the IMC is BIG, so you have to very careful when centering the shutter. Might be that we cannot leave it at 45 deg and still get a big enough aperture.

Note #3 for Steve: please also replace the mount for last steering mirror into the IMC with a Polanski or a Superman, that black Ultima is no good. Also the dogs must be steel - no aluminum dogs for our sensitive places.

No wonder they could not find the beam dumps. Last night was Haloween. They should of just said: Trick or treat! where are the beam dumps?

Attachment 1: razor_beam_dumps.jpg
razor_beam_dumps.jpg
  9333   Mon Nov 4 09:03:21 2013 SteveUpdatePSLPMC auto locker

Quote:

 I was working on the electronics bench and what sounded like a huge truck rolled by outside. I didn't notice anything until now, but It looks like something became misaligned when the truck passed by (~6:45-6:50 pm). I can hear a lot of noise coming out of the control room speakers and pretty much all of the IOO plots on the wall have sharp discontinuities.

I haven't been moving around much for the past 2 hours so I don't think it was me, but I thought it was worth noting.

 The PMC auto locker is not set to acquire error message made me lock PMC manually.  Arms  locked instantly: TRY 0.9 V and TRX 0.65 V

Attachment 1: 3dTREND.png
3dTREND.png
  9334   Mon Nov 4 11:37:12 2013 SteveUpdateIOOPSL output shutter installed

 

 The PSL shutter is reinstalled.The base plate is delrin for isolation and the mount height is adjustable. The last steering mirror mount to be swapped in is ready. It is sitting on the top of the ITMX optical table cover with SS dogs.

There are two reflected spots on the north side of the Uniblitz shutter. They are coming from the vacuum window. They should be trapped also.

Attachment 1: Shutterisback.jpg
Shutterisback.jpg
  9343   Tue Nov 5 08:44:21 2013 SteveUpdateIOOafter last steering mirror mount swap

 The IOO Angle and IOO Position qpds  were recentered after this entry.

 Suggested corrections in elog entry #9323 are completed:

 1,  last steering mirror mount replaced by Polanski mount

 2,  PSL output shutter mount reconfigured

 IOO qpds are not centered. I failed to connect laptops to 40MARSian network.

Attachment 1: after_Shutter_SMm_installed.png
after_Shutter_SMm_installed.png
Attachment 2: afterlastSMmountswap.jpg
afterlastSMmountswap.jpg
  9347   Tue Nov 5 17:12:34 2013 SteveUpdateLSCcentered qpds

 Full list tomorrow: IP-Ang & Pos, ETMY-T, ETMY-Oplev, ETMX-T, IOO-Ang & Pos

 RA: No one in the control room this evening can understand what this ELOG means. Please use more words.

Attachment 1: recentered.png
recentered.png
  9352   Wed Nov 6 08:33:53 2013 SteveUpdateIOOPoiting changes of PSL

Quote:

 Full list tomorrow: IP-Ang & Pos, ETMY-T, ETMY-Oplev, ETMX-T, IOO-Ang & Pos

 RA: No one in the control room this evening can understand what this ELOG means. Please use more words.

 Yesterday the last steering mirror mount on the PSL was changed, Manasa recovered the MC alignment and Jenne locked the arms.

 I centered the following qpds:  ASC-IBQPD, LSC-TRY, SUS-ETMY_OPLEV, LSC-TRX, SUS_ETMX_OPLEV

 Touching the PSL pointing IOO-QPD_ANG & POS was a mistake. We lost the reference of the well refined MC input.

 

One and 20 days TRENDS  plot showing the PSL output drift in pitch can be power drop

However initial pointing is amazingly good. ( I wonder about the lens in front of the qpd ?)

Attachment 1: 1dayTRENDofPOITING.png
1dayTRENDofPOITING.png
Attachment 2: 20dayTRENDioo.png
20dayTRENDioo.png
ELOG V3.1.3-