CC1 and CC2 are working again. Why did they start working  again ?

The oplev and  the LSC are off.

Yutaro Enamoto, visiting graduate student of Seiji received 40m specific basic safety training.

ETMX was not much effected by this 8.3 M Chilian earthquake. It was kicked up and it was kicking for hours after it. This is a sign of instability but it maintaind it's position.

The 24 hours plot follows the tempeerature.

I just turned off the PSL enclousure lights.
 

The ITMX OSEMS are oscillating.

The PMC is not happy and the ITMX UL OSEM is moving too much

Building:         San Pasqual walkway East to West

                  (Between Holliston & Wilson)         

Date:             Thursday 11-12-15 to Wednesday 11-18-15

Time:             Between 6:00 a.m. and 4:00 p.m. each day        

Notification:     Possible Noise Vibration

Contact:          Ken Lewis (626) 298-2037       

* Plumbing contractor will be inspecting and water jetting Storm drains

Type of interruption: (Some vehicle noise and small vibrations limited to close surrounding area)

Areas effected: San Pasqual walkway from Holliston Street to Wilson)

Potential effects: storm drain loss of use

Reason for interruption: Storm drain cleaning in preparation for rainy season

Are they oscillating or not ?

ETMX, ETMY and MC2 POS _biases are off. Why ?

The Epics MEDMs screens are going blank in  ~3-5 minutes reluctantly.

The leak was found inside the wall. Fortunately the plumbers were able to access it from CES room 108

This has been leaking for sometimes. The damaged wall area is about 18 ft long and 1 ft high.

Dataviewer x axis end is not there.

On ( 2600 days) longer plots it is missing 8 moths and on (100 days) shorther plot it is missing 1 month.

Q adjusted the Dataviewer so it is not chopping of data any more. Thanks.

Cold cathode gauge reading of 10 years.

The noise floor of the Rga scan is glitching less today

Glitches are gone. Rga scan is good

Two companies are willing to  make the ruby grooves and the third one is still working on their quote.

The price is ~$100 each. The cost goes down 10% if we  order 50 instead of 30 pieces.

How many should we get ?

c1sus and c1ioo were restarted. PMC locked.
 

Two mechanical and two sticdky traps were set to catch univited visitor.

Absolutely no food or food remains into inside garbage cans!!!!!!!!!!!!!!!!!!!!!!!!!

I think there should be a scientifically based aveluation of the ETMY enclosure so we can make the ETMX better.

Meanwhile I'm counting pieces to move on with the south end table cover.

PMC locked manually and PRM sus damping restored.

Suspensions are recovered after 4.2 Mag earth quake. No obvoius sign of damage.

Suspensions recovered after 4.4 Mag EQ

Our janitor confirmed that Q was not hallucinating about this animal. The dropping size indicating a good size one in the IFO room.

One of the mechanical traps moved from the control room to the east arm, close to the " machine shop " door.

I'm going to get more traps.

Please look around when working close to these five locations. Use flashlights or leave lights on.

These mechanial traps are HAZARDOUS !

No visitors or tours till Monday, Jan 11  2016

IFO restored after 4.5 Mag Banning, Ca earthquake.

Projector light bulb ordered

PMC locked and ETMX suspension damping restored.

Air condition maintenance is happening. It should be done by 10am

No obvious sign of damage.

Just an other local earthquake 3.6 Mag Ludlow, Ca

No obvious sign of damage

ETMX suspension damping restored.

PRM suspension damping restored after 4.1 Mag Ludlow earthquake.

The noisy fan belt on the roof of the control room was finally replaced on Friday, Jan 22 2016

Objective:  measure the noise floor on the optical table and the floor so we can decide if the table needs better anchoring before swapping in

                   the larger optical table

The accelerometrs labeled as MC1 ( just north east  of IOO chamber floor ) and MC2 ( north east leg of MC2 table floor ) were moved:

MC1 to the floor at the north west leg of optical table.

MC2 is in the north east corner of the optical table

Atm2 was taken after table leg bolts were tighed at 40 ft/lb

The spectrum looks similar to ETMY     (Guralp for below 3 Hz )  except  the Z direction 

ETMY  .

Conclusion: up to 20 Hz this set up is good.

Rana stated yesterday that there will be a vacuum control update in the close future. Witnesses : Rich, Chris and Dave

Can you give me this in writing?

Innolight 1W 1064nm, sn 1634 was purchased in 9-18-2006 at CIT. It came to the 40m around 2010

It's diodes should be replaced, based on it's age and performance.

RIN and noise eater bad. I will get a quote on this job.

The Innolight Manual frequency noise plot is the same as Lightwave' elog 11956

We got it! Traps are removed.

It rained hard yesterday. We have not had this strong downpoor for years. We got 0.7" and the roof did not leak.

Daily summary pages are blank today. Yesterday is ok

Pasadena fire marshal inspected the lab today. No violation was found.

No sign of damage

   Beautifully Done

   Chirp

  what is next?

Atm 3, Ron Drever could not celebrate with us because of health issues.

It shipped out for repair evaluation.

Arrived to Hayward,CA   2016Feb16

Pasadena reported the Sunday night event as a power transient caused by the trip of a power transmission line. This affected the entire city. Once the loss was detected, the system automatically switches to an alternate source. It was about one second for the system to recover.

2W Innolight, both Lightwaves at the ends, PSL HEPA, Ref Cavity and 3 AC units  turned on.

The 40m vacuum did not trip. It is vacuum normal.

The Jetstore computer is indicating power failer.

TP3 drypump replaced after 10,344 hrs at 750 mTorr foreline pressure.

The foreline pressure is 13 mTorr after 8 hrs of running, TP3: 50K rpm, 0.14 Amp with all annuloses pumped.

The annulos pressures are 0.3 - 5 mtorr

************************

Frame builder just crashed again

Local EQ4.3

kicks ITMX-UL magnet into stuck position.

Hopefully it is only sticking.