Preliminary TFs have been taken and all DOFs appear to match the references well.
Results can be found in the usual place: /ligo/svncommon/SusSVN/sus/trunk/HSTS/H1/SRM/SAGM1/Data/ 2017-12-04_2329_H1SUSSRM_M1_WhiteNoise*.xml
HAM 4
HAM 5
BSC 1
Cheryl, Ed
Ed - IM3 - After re-centering the mounting plates for the leaf springs to better center the wires in their spaces, I was able to recover a good portion of the YAW alignment as it was after I zeroed the sliders. Pitch requires the removal of the baffle which was not done at this time. Images below show values before any work was done and then what I finished the day with. More aggressive physical positioning may be required to recover best alignment.
IO work, 4 Dec 2017:
IM1 - bias relief and viton pads installed
IM3 - work continues
LVEA is Laser SAFE
BS suspension tripped its watchdog today, but this optic was locked down last Thur by Travis and will stay locked until after the First Contact is removed right before buttoning up. So this will be red on the CDS Overview. Similarly, SR2 was locked down recently, but it was still "Damped". I tripped it for Fil's Sat Amp Ground Check and then re-damped it...this is when Travis told me it was locked. Anyway, Guardian took it from a Tripped state to a Damped state (eventhough it was locked).
Day's Activities:
A quick table summary of the alignment of the newly installed baffles that have apertures.
| Suspension | Alignment Method | Accuracy |
|---|---|---|
| HAM2 | ||
| MC1 | Aligned with the beam during overall alignment. | 2-3mm to center |
| MC3 | Aligned with the beam during overall alignment. | 2-3mm to center |
| PR3 | Aligned by sight and checked by IO team with paper target. | ~4mm |
| PRM | Used the acrylic target and then later checked okay with the beam. | 2-3mm to center |
| HAM3 | ||
| MC2 | Aligned with the beam during overall alignment. | ~5mm to center |
| PR2 | Aligned with the beam during overall alignment. | ~5mm to center |
| HAM4 | ||
| SR2 | Aligned with the beam during overall alignment. | ~5mm to center |
| HAM5 | ||
| SR3 | Aligned by sight and checked with beam. | ~4mm to center |
| SRM HR | Aligned with beam. | 2-3mm to center |
| SRM AR | Aligned with beam. | ~1mm to center |
| BSC1 | ||
| ITMY Elliptical | Aligned using provided target. | ~5mm |
| BSC2 | ||
| BS HR & AR Elliptical | Aligned using provided target. | 1mm |
| BSC3 | ||
| ITMX Elliptical | Aligned using provided target. | ~5mm |
*All other newly installed baffles with any type of adjustment were aligned by sight.
I think that at some stage, someone should tie up this information with https://dcc.ligo.org/LIGO-E1700321 and https://dcc.ligo.org/LIGO-E1700341 for overall documentation.
The CO2 Corner Breakout units - D1201062 inside the TCS enclosures were powered up. Breakout units provide power to the aiming lasers needed for alignment. Cabling for the AOM and CO2 laser were not connected. Many of the panel feedthrough jack screws were either tighted or replaced.
Other work done on the table:
FRS 4507
WP7222
The AOM drivers on TCSX and TCSY enclosures were pulled for modifications. AOM monitor board D150404 to be added for remote monitoring.
F. Clara, P. King, T. Shaffer
DM#30 (BSC3) stopped communicating late Friday afternoon. It was reset this morning. Now all dust monitors are working. Posted below are the 7 day trends for the LVEA. There were several high spikes in the HAM5 area. I've requested the cle3aning crew give this area an extra treatment. No other monitors showed items for concern.
Attached are the VPW desiccant plots with this month's added data. Since the last data dump back in October of these sensors. The batteries ended their year+ cycle and quit taking data. This was discovered a few weeks ago. Which is why each sensor entry only has a few days of data. The sensor batteries were replaced and will continue to take data as normal.
Ran the checks for the STS & T240 masses. STS's were fine. The T240 had the following masses out of range:
Averaging Mass Centering channels for 10 [sec] ...
2017-12-04 10:39:03.361987
There are 20 T240 proof masses out of range ( > 0.3 [V] )!
ETMX T240 1 DOF X/U = 0.335 [V]
ETMX T240 2 DOF X/U = -0.379 [V]
ETMX T240 2 DOF Y/V = -0.709 [V]
ETMX T240 3 DOF Y/V = 0.337 [V]
ETMY T240 1 DOF Y/V = 0.323 [V]
ETMY T240 3 DOF Z/W = 0.364 [V]
ITMX T240 1 DOF X/U = -0.387 [V]
ITMX T240 2 DOF X/U = -0.32 [V]
ITMX T240 3 DOF X/U = -0.628 [V]
ITMY T240 1 DOF X/U = -0.338 [V]
ITMY T240 1 DOF Z/W = -0.538 [V]
ITMY T240 2 DOF Z/W = -0.609 [V]
ITMY T240 3 DOF X/U = -1.026 [V]
ITMY T240 3 DOF Y/V = -0.341 [V]
ITMY T240 3 DOF Z/W = -0.759 [V]
BS T240 1 DOF Y/V = -0.35 [V]
BS T240 1 DOF Z/W = -0.519 [V]
BS T240 2 DOF Y/V = -0.443 [V]
BS T240 3 DOF X/U = -0.637 [V]
BS T240 3 DOF Z/W = -0.564 [V]
2017-12-04 10:37:23.352027
All STSs proof masses that within healthy range (< 2.0 [V]). Great!
Closing out this FAMIS task.
NOTE: PMC reflected power is note as being high....this has been noted atleast for the last 1-2 months (I only looked that far back). So just wanted to make a note of that. Closing FAMIS task 7467).
Laser Status:
SysStat is good
Front End Power is 35.74W (should be around 30 W)
HPO Output Power is 154.4W
Front End Watch is GREEN
HPO Watch is GREEN
PMC:
It has been locked 0 days, 14 hr 22 minutes (should be days/weeks)
Reflected power = 23.59Watts
Transmitted power = 48.95Watts
PowerSum = 72.55Watts.
FSS:
It has been locked for 0 days 14 hr and 22 min (should be days/weeks)
TPD[V] = 1.62V (min 0.9V)
ISS:
The diffracted power is around 2.6% (should be 3-5%)
Last saturation event was 0 days 14 hours and 21 minutes ago (should be days/weeks)
Possible Issues:
PMC reflected power is high
Posted are the results for the BRS 7-Week drift trends. The events during the 10-30 to 11-06 week are Krishna rebuilding the BRS-X and some minor work on BRS-Y. The BRS-X event at the end of November was Krishna and Mike doing some centering work.
Notes from the 9am Monday Meeting
Laser Safety:
Acceptable lasers: Jason's alignment laser (was measured & approved by Peter)
CO2 TCS Lasers: Couldn't power them on to check them last Fri. (power cables probably disconnected when tables moved.) Lasers have class-II sticker (which is eye-safe), but Peter wants to measure them. So not acceptable until tested by Peter King.
HAM5: Few items left for Betsy, Gerardo, Hugh. Goal to close this week!
HAM2: IM Baffle Viton Install (Cheryl)
Audit baffle alignment list & note it.(TJ & Betsy)
First Contact work: H4, H5, B1
B&K: H5, H2, B2 (Kissel)
H6 class-a feedthru fix (Hugh)
Contamination Control Note: vert & horiz wafers needed for HAMs
Satellite Amp Ground checks: H3, H4, H2, H5, B1, B2, B3
Doors for B1, H4, H5, H6
VAC: H4 Cleanroom should be moved after doors on, for a NEG pump install
Tues Maintenance:
Squeezer: On hold due to laser, maybe have some cables
Visual filter inspection shows no debris or discoloration in the Diode chiller filter. The Crystal filter has a few black plastic bits, that look like thread shavings from the black plastic fitting in the new manifold. This is normal and shows the filter is doing it's job. There is no discoloration in the Crystal chiller filter. I added 200ml to the Crystal chiller. The Diode chiller water level appears OK.
Earlier last week when we were using the red eye safe alignment laser to align the elliptical baffles in BSC2, I also checked and tweaked the HWS paths on HAM4. Reasons for doing this were that
1) I moved the 4" HWSX steering mirror a few weeks ago in order to install the scraper baffle and slide the SRM cage back 5mm
2) We bumped a 2" steering mirror on the HWSY path (the one most central to the table)
Indeed, we found both paths slightly misaligned - both beams made it through the last lens out the VPs, but were off center. I tweaked only the mirrors above, knowing that those were the ones with issues.
I verified that the beam is well centered into the HWSX scraper baffle which was upgraded a few weeks ago. I also did a quick check that the beam is ~well centered going through the HWSY scraper baffle.
I made Aidan aware that I was doing this.
Dust Monitor 30: BSC3
While going through Ops Checksheet, and running the dust monitor check, noticed the BSC3 dust monitor froze at around 2:20pmPST on Fri (12/1). I notified Bartlett (he was already aware) and he is going to need to toggle the RESET button on the dust monitor.
I am probably culpable for the issue with this dust monitor because I ran a START/STOP on it before going in-chamber friday afternoon (it had looked frozen at the time).
ITMx ISI Tripped
Jim had it untripped Fri for a transfer function & will take care of it this morning
IM1 Tripped
Ed redamped
~4-5F temp drops in laser rm and laser table on 11/30 and 12/1 show coincidence with a rising LVEA temp on the 12/1. All other plots look normal.
Screenshot attached. FRS 5270.
Miscellaneous checks. 1530 hrs. local -> Leaving site now.
Leaving site now.
Positioned the [D090]1075 10kg masses on the table top per D1001139 with one small adjustment to clear the ROC heater base dog clamp. Things might change anyway when we balance so I'll keep the 'as-built' on-going. Otherwise, they are all in position and bolted down EXCEPT three top masses that are on viton. If you don't see the four big shiny Ag plated 3/8 SHCS heads, be careful using it as a brace. The three viton'd masses are the most central in the table and the most -Y and -X. There are only six stacks on the table so just be careful.
On another note, I found a CPS cable that looks like it was stoutly stepped on evidenced by the copper shielding. See attached photo of the V1 cable down on Stage0. Again, be careful where you step; as you know, there are a lot of cables. I'll check the signal on this sensor and report on its condition.
Looking at the trends of the WHAM5 ISI CPS sensors, there does not appear to be any damage to the V1 sensor. It looks like all the other sensors on the platform (see attached) and most other HAMs as well. The shift evident on these local sensor is from the change in payload I did Friday, yes, even though the platform is locked.
