I'm attempting two jobs on opsws3.  Please take it easy on this work station but I won't say don't use it.

Please reenable any watchdog trips on the HEPI, ISI, and SUS.

My tf on Sat at ITMX went poorly, so I will be taking a new tf ITMX, starting at midnight tonight. Re-taking tf's on ETMX, because I have the opportunity, and I haven't taken good data there since the last time we opened.

LVEA is Laser Hazard

09:49 Hugh – Recycling HAM5 HEPI
10:04 Aaron – Installing illuminater chassis at HAM2 and HAM5
10:18 Betsy & Travis – Working in west bay on 3IFO Quads
10:40 Dave – Cabling at the HAM6 bay
13:12 Karen – At Mid-Y
14:20 Besty & Travis – Working in LVEA west bay on 3IFO Quads
14:37 Peter – Going to Diode room to reset PSL watchdog

Jason, Rana, John

Credit for this one goes to John Worden.  He noticed the sawtooth pattern seen by the ITMy optical lever was very similar to that produced by the instrument air system re-pressurizing itself.  Sure enough, we go out and the copper instrument air line is touching the north end of the ITMy transmitter pier, so we moved it.  As can be seen on the attached graph, after the move the sawtooth pattern was gone.  I'll keep an eye on this over the next couple days to make sure this is actually fixed.

PSL Status: 
SysStat: Green 
Output power: 33.7w  
Frontend Watch: Red
HPO Watch: Red  

PMC:
Locked: 3 days, 14 hours, 33 minutes
Reflected power:    2.0w
Power Transmitted: 22.9w 
Total Power:       24.8w 

FSS:
Locked: 0 days, 1 hours, 40 minutes
Trans PD: 0.586v

ISS:
Diffracted power: 11.206%
Last saturation event: 3 days, 14 hours, 24 minutes  

Frequency of DAC lock out events (requiring IOP model restart to fix). Two more events since my last summary alog Link

9/11 2014 h1seih45

9/10 2014 h1seih23

8/11 2014 h1susb123

8/9 2014 h1seih23

4/21 2014 h1sush2a

3/18 2014 h1sush2a

2/27 2014 h1seih23

12/16 2013 h1seih23

11/7 2013 h1sush2a

11/7 2013 h2sush34

8/8 2013 h1seih23

Like HAM4, no problem taking HEPI down with Guardian, loading the new filters and bringing the loops back on with Guardian all while the ISI remains isolating.  Checked DTT and it looks better but I really need the full TF-hopefully tonight.

SEI – Working on TFs on HAM2 and HEPI commissioning

OpLev – Working on ITMY sawtooth laser glitch. 
	       Swapping BeamSplitter laser due to glitch

TCS – Laser alignment of TCS-X table

Test Mass Charging experiment is making measurements in the LVEA west bay cleanroom

The HAM2 TF data after the 1st couple of sections got corrupted so this needs to be run again.  Still, we can see that again the sharpe peaks between 10 & 40 hz, believed to be HEPI structures, are lowered in frequency and Q.  Also, the H3 CPS response does not develop into the deep zero around 6-7hz.  The lower UGF of 2hz on the HEPI position controller is believed to be the reason.  The attached plot compares the HEPI locked to closed HEPI Position loops ISI TFs.

Heard the chiller alarm this morning.  Found the water level to be a little below minimum.  Added about 400 milliliters.

model restarts logged for Sat 13/Sep/2014
2014_09_13 06:27 h1fw1
2014_09_13 09:52 h1fw1

unexpected restarts of h1fw1

Today I spent some time working on the DRMI guardian. It now is controling the state of the ITMX, IMTY, PRM and SRM suspensions.  It can transition smoothly between PRX, PRY, and MICH on the dark fringe with just one click. Hopefully this makes the repeated alingments of PRMI easier.  

Notes:

• Due to the buggy input matrix loading, you might need to check that the elements that got set are actually set (look for red).  The guardian is checking for this error in PRX PRY, but I didn't get to addding much error checking to the MICH or PRMI states yet. 
• None of these states can cope well with the situation where something gets kicked and is saturating, if that happens human intervention is needed, you should be able to simply request the down state, wait until everything is settled down, and then request the state you want again. 
• You will have to save alingments before changing the guardian requested state to a different configuration, otherwise your alingments will be lost.  The DRMI guardian should warn you with a user message i this is happening. 
• I made only the states which are tested requestable, so if it is on the pull down menu I think that it should be working.  The only questionable one is PRMI carrier, which was working OK last night but I didn't have time to actually see it lock today.  
• When one of these configurations losses lock, they do not go back to the down state (unless the IMC also lost lock), they just go to the LOCK state.  If you want to start from scratch and reset parameters, manually select down.  

model restarts logged for Fri 12/Sep/2014

2014_09_12 12:52 h1iopseih45
2014_09_12 12:54 h1hpiham4
2014_09_12 12:54 h1hpiham5
2014_09_12 12:54 h1isiham4
2014_09_12 12:54 h1isiham5
2014_09_12 16:22 h1broadcast0
2014_09_12 16:22 h1dc0
2014_09_12 16:22 h1fw0
2014_09_12 16:22 h1fw1
2014_09_12 16:22 h1nds0
2014_09_12 16:27 h1nds1

no unexpected restarts. h1seih45 restarted to clear stuck DACs. DAQ restarted to synchronize h1omc.

This morning at 2:30 am pacific time ITMY controls were turned off to check that the sawtooth seen on the OpLev yaw is not somehow cause by the ISI.  The sawtooth was there all night, and not seen in the stage 2 Rz sensors, screen shot attached.

This is as expected, since if this were real motion of the suspension we would not be able to lock. 

The ISI tripped this morning and tripped again when I was trying to bring it back, with the guardian complaining about smoe filter settings not as expected. 

Now it is fully isolated.

That's 1237pdt, I can't see Jim's matlab sesssion with the locked out terminal.

Loaded these this morning after getting the new .mat files Hugo built yesterday.  A few minor plotting difficulties and then after conferring with JeffK, loaded the filters at 1228pdt.  Opened the HEPI loops, loaded the filters and turned them back on all with the ISI Isolating (Lvl1.)  Silly me, I didn't take a DDT look before the switch altthough I had done this before a week+ ago and I could see the ugly zero pretty easily then; the second plot in 13810 is a good place to see this.  I undamped/unisolated the ISI and looked with DTT and like the long commissioning transfer functions, you really can't get any coherence in the area but at least the amplitude doesn't show the deep zero.  Next step would be to run the longer TF on the HAM4 ISI--later.

Alexa, Rana, Sheila, Kiwamu

We continued working on the carrier PRMI tonight as a part of the too-low recycling gain study. No new result -- the recycling gain stayed as high as 15 and reflection remained 30-ish %.

Then we switched the effort to the sideband locking to get ready for the upcoming full interferometer locking, but no luck in catching a fringe for unknown reason. We woll continue working on the sideband locking during the weekend.

(Carrier lock automation)

We worked on an automation of the carrier lock using the guardian for the carrier lock configuration. We tested the code by letting it lock the PRMI. It runs fine.

(Camera adjustment on PRM, PR2 and PR3)

As a part of the intracavity clipping study, we readjusted PRM, PR2 and PR3 GigE cameras to have a better focus on the infrared images. The attached are screenshots of those cameras after the readjustment of focusing and zooming. The PRMI was locked on the carrier.

Some observations:

• PRM baffle tends to show a scattering on the left side of its image.
• PR2 image showed a small spot-like scattering. We did not locate where it correponds to.
• PR3 tends to have a bright scattering below the optic even though the beam does not look super low on the mirror.

(PRMI carrier WFSs preparation)

We started looking at the WFS signals in order to aling the PRMI without keep clicking the sliders on the screen. Tonight, we made a single measurement -- which is a sensing coefficient from IM4 to WFS A and B.

WFS_A_RF9_I_PIT = 4.8 [wfs cnts/ IM4 pitch cnts]  (-172 deg)

WFS_B_RF9_I_PIT = 6.6 [wfs cnts/ IM4 pitch cnts]  (1 deg)

WFS_A_RF9_I_YAW  = 0.9 [wfs cnts/ IM4 pitch cnts]  (0.4 deg)

WFS_B_RF9_I _YAW = 1.36 [wfs cnts/ IM4 pitch cnts]  (3.5 deg)