TITLE: 11/25 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY: Locked for 9.5 hours. Only thing to report is that lots of measurements were taken today and are still being taken.
LOG:

15:30UTC Locked for 30 minutes
 19:30 Broadband calibration measurements taken

TITLE: 11/25 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Planned Engineering
OUTGOING OPERATOR: Oli
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 9mph Gusts, 5mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.34 μm/s 
QUICK SUMMARY:

• We've been locked for almost 9.5 hours
• Microseism is decreasing, the wind is low/moderate but is predicted to fall off in a few hours
• There are some planned overnight test(s), TCS CO2 stepper, and maybe something PEM

Kappa C has been high by 3% since Sheila updated the power normalization. This is accounted for in the TDCFs, but makes CAL DELTAL calibration >10% in magnitude and will make it harder to understand how kappa C has changed when we come back form the vent. To make our lives easier, I pushed the calibration report 20251115T213724Z.

I followed the usual process of taking a broadband before and after the push. I have loaded the CAL CS model and accepted the new SDFs in observing.

As expected, this has a minimal effect on the GDS uncertainty (because of TDCFs), but has made a large improvement in CAL DELTA L uncertainty.

Closes FAMIS27574, last checked in alog88154

The out building fans look typical, MY_FAN2 shows periodic noise increases, but this is its usual behaviour.

The CS show an increase in the motion of MR_FAN2_170_1 ~3.5 days ago (11/21 06:20 UTC / 11/20 22:20 PST).

Two broadband measurements were run: one before updating calibration and one after. The one run before the update was run after we had been Locked for over 4.5 hours, so we were fully thermalized, and the second measurement run after the update was also fully thermalized

First BB measurement: 2025-11-24 19:32:44 - 19:38:03 UTC
calibration monitor screen
Results: /ligo/groups/cal/H1/measurements/PCALY2DARM_BB/PCALY2DARM_BB_20251124T193252Z.xml

Second BB measurement: 2025-11-24 19:52:47 - 19:58:02 UTC
calibration monitor screen
Results: /ligo/groups/cal/H1/measurements/PCALY2DARM_BB/PCALY2DARM_BB_20251124T195252Z.xml

Jennie W

I vacuumed the holes in the JAC optics table and wiped down the table surface and enclosure interior. Skinny bunny should now be worn when the table is opened and the fan should be on. Thanks to KIm and Nellie for cleaning the lab and the outsde of the enclosure so well.

Mon Nov 24 10:13:17 2025 INFO: Fill completed in 13min 13secs

FAMIS 31113

Jason's FSS RefCav alignment tweak last week is clearly seen. Since then, the ISS diffracted power has dropped slightly and both PMC reflected and transmitted powers have risen sightly. No other major events of note this week.

TITLE: 11/24 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 155Mpc
OUTGOING OPERATOR: None
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 11mph Gusts, 8mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.29 μm/s 
QUICK SUMMARY:

Locked for 30 minutes. 

Editing: TJ found my mistake, I should say ezca['TCS-ITMX_CO2_LASERPOWER_COMMAND'] = 2 to go to the requested power, not 1.  1 is search for home.  Thank you TJ.

Lasty night I added some lines to Kevin's script that I hoped would make the CO2 powers step down from 1.7W to 0.9W at midnight.  

Since we're in-between measurements, I've set the Observing bit.

Sun Nov 23 10:06:34 2025 INFO: Fill completed in 6min 30secs

STATE of H1: Planned Engineering
CURRENT ENVIRONMENT:
    SEI_ENV state: USEISM
    Wind: 4mph Gusts, 2mph 3min avg
    Primary useism: 0.03 μm/s
    Secondary useism: 0.43 μm/s 
QUICK SUMMARY:

• We've beeen locked for over 5 hours, since 11:07 
• Microseism is still elevated, wind is low

After Robert stoped for the day, I set up another round of sqz scanning scripts, which should finish in less than 2 hours from now.  

I've also modified Kevin's script to allow me to schedule it to start at midnight, and added some lines that will attempt to step down the ITM CO2 powers to 0.9W from 1.7W.  This is a repeat of a test we tried a few times in June, we had locklosses that might have been unrelated 85335.  If the IFO stays locked for 1 hour after stepping down the CO2s, the script should run the ADF scan again.  I didn't test any of my modifications to the script.

Here's the log of times for the first sqz angle scan tonight: 

log of times : 
nonlinear gain measurement, unamplified seed scan: 1447904771, amplified seed time: 1447904933 nosqz : 1447904755.0

starting angle scan for FIS with zm4 psams at 6.2, zm5 psams at -5.3:

169.8 : 1447906635.0 
159.8 : 1447906876.0 
149.8 : 1447907115.0 
139.8 : 1447907356.0 
129.8 : 1447907596.0 
119.8 : 1447907836.0 
109.8 : 1447908076.0 
99.8 : 1447908316.0 
89.8 : 1447908556.0 
79.8 : 1447908796.0 
79.8 : 1447909036.0 
59.8 : 1447909276.0 
39.8 : 1447909516.0 
19.8 : 1447909757.0 
0.0 : 1447909997.0 
-30.0 : 1447910237.0 
-60.0 : 1447910477.0 
-90.0 : 1447910717.0 
-120.0 : 1447910957.0 
-150.0 : 1447911197.0 

Edited to add: the scan for FIS with nominal psams also completed: 

starting angle scan for FIS with zm4 psams at 6.2, zm5 psams at -0.4

188.2 : 1447912973.0 
178.2 : 1447913213.0 
168.2 : 1447913453.0 
158.2 : 1447913694.0 
148.2 : 1447913933.0 
138.2 : 1447914174.0 
128.2 : 1447914413.0 
118.2 : 1447914654.0 
108.2 : 1447914894.0 
98.2 : 1447915134.0 
78.2 : 1447915374.0 
58.2 : 1447915614.0 
38.2 : 1447915854.0 
18.2 : 1447916094.0 
0.0 : 1447916334.0 
-30.0 : 1447916575.0 
-60.0 : 1447916814.0 
-90.0 : 1447917054.0 
-120.0 : 1447917295.0 
-150.0 : 1447917534.0 

Sat Nov 22 10:03:07 2025 INFO: Fill completed in 3min 5secs

Quick fill, ended when TC-A saw a spurt of LN2 and its delta-T exceeded the trip limit, the full overflow followed shortly after.

The sqz angle scan ran overnight.  It did no squeezing and an NLG measurement at the start but those times are not included in the log of times for some reason, I will have to find the times manually. 

It looks like the alignment degraded overnight.  The script runs AS42 WFS while it moves the psams, but that must not have worked well enough.  I'm running scan_alignment: results here, angle scan following here.  

It looks like the squeezing angle servo based on the 322 Hz ADF was on while we were in frequency independent squeezing, this will not work well so I've added it SQZ_MANAGER to turn that off when it misaligns the filter cavity. 

Ran scan alignment a second time, as well as scan sqz angle, set guardian to FDS, turned off ADF servo and started Kevin's script at 6:55, it should finish around 8:30.  

Edited to add: I think the first two scans here are good data, so FDS nominal psams and FIS ZM4 at 4, ZM5 at -0.4.  This should also have teh nlg measurement for Kevin's script that I'll have to go find the times for by hand.

log of times : 
starting angle scan for FREQ_DEP_SQZ with zm4 psams at 6.2, zm5 psams at -0.4184.8 : 1447823586.0 
174.8 : 1447823826.0 
164.8 : 1447824067.0 
154.8 : 1447824306.0 
144.8 : 1447824547.0 
134.8 : 1447824787.0 
124.8 : 1447825027.0 
114.8 : 1447825267.0 
104.8 : 1447825507.0 
94.8 : 1447825747.0 
94.8 : 1447825987.0 
74.8 : 1447826227.0 
54.8 : 1447826467.0 
34.8 : 1447826707.0 
14.8 : 1447826948.0 
0.0 : 1447827187.0 
-30.0 : 1447827428.0 
-60.0 : 1447827668.0 
-90.0 : 1447827908.0 
-120.0 : 1447828148.0 
-150.0 : 1447828388.0 
starting angle scan for FREQ_INDEP_SQZ with zm4 psams at 4.0, zm5 psams at -0.4182.1 : 1447829109.0 
172.1 : 1447829349.0 
162.1 : 1447829589.0 
152.1 : 1447829829.0 
142.1 : 1447830069.0 
132.1 : 1447830309.0 
122.1 : 1447830549.0 
112.1 : 1447830789.0 
102.1 : 1447831029.0 
92.1 : 1447831269.0 
92.1 : 1447831510.0 
72.1 : 1447831749.0 
52.1 : 1447831990.0 
32.1 : 1447832229.0 
12.1 : 1447832470.0 
0.0 : 1447832710.0 
-30.0 : 1447832950.0 
-60.0 : 1447833190.0 
-90.0 : 1447833430.0 
-120.0 : 1447833670.0 
-150.0 : 1447833910.0 
starting angle scan for FREQ_INDEP_SQZ with zm4 psams at 6.2, zm5 psams at -4.5175.0 : 1447835290.0 
165.0 : 1447835530.0 
155.0 : 1447835770.0 
145.0 : 1447836010.0 
135.0 : 1447836250.0 
125.0 : 1447836490.0 
115.0 : 1447836730.0 
105.0 : 1447836970.0 
95.0 : 1447837210.0 
85.0 : 1447837450.0 
84.9 : 1447837690.0 
64.9 : 1447837930.0 
44.9 : 1447838171.0 
24.9 : 1447838410.0 
4.9 : 1447838651.0 
0.0 : 1447838891.0 
-30.0 : 1447839131.0 
-60.0 : 1447839371.0 
-90.0 : 1447839611.0 
-120.0 : 1447839851.0 
-150.0 : 1447840092.0 
starting angle scan for FREQ_INDEP_SQZ with zm4 psams at 6.2, zm5 psams at -5.3173.6 : 1447840601.0 
163.6 : 1447840841.0 
153.6 : 1447841081.0 
143.6 : 1447841321.0 
133.6 : 1447841561.0 
123.6 : 1447841801.0 
113.6 : 1447842041.0 
103.6 : 1447842281.0 
93.6 : 1447842521.0 
83.6 : 1447842761.0 
83.6 : 1447843001.0 
63.6 : 1447843242.0 
43.6 : 1447843481.0 
23.6 : 1447843722.0 
3.6 : 1447843962.0 
0.0 : 1447844202.0 
-30.0 : 1447844442.0 
-60.0 : 1447844682.0 
-90.0 : 1447844922.0 
-120.0 : 1447845162.0 
-150.0 : 1447845402.0 
starting angle scan for FREQ_INDEP_SQZ with zm4 psams at 6.2, zm5 psams at -0.4183.6 : 1447846542.0 
173.6 : 1447846782.0 
163.6 : 1447847022.0 
153.6 : 1447847263.0 
143.6 : 1447847502.0 
133.6 : 1447847743.0 
123.6 : 1447847983.0 
113.6 : 1447848223.0 
103.6 : 1447848463.0 
93.6 : 1447848703.0 
93.6 : 1447848943.0 
73.6 : 1447849183.0 
53.6 : 1447849423.0 
33.6 : 1447849663.0 
13.6 : 1447849904.0 
0.0 : 1447850143.0 
-30.0 : 1447850384.0 
-60.0 : 1447850624.0 
-90.0 : 1447850864.0 
-120.0 : 1447851104.0 
-150.0 : 1447851344.0 

Got one more scan with good alignment for ZM5 psams at -4.5.  There was a no sqz time when the nlg was measured a few minutes before this, but times aren't recorded in the log so I'll have to go find the times later. 

starting angle scan for FIS with zm4 psams at 6.2, zm5 psams at -4.5169.4 : 1447867479.0 
159.4 : 1447867659.0 
149.4 : 1447867839.0 
139.4 : 1447868019.0 
129.4 : 1447868199.0 
119.4 : 1447868379.0 
109.4 : 1447868559.0 
99.4 : 1447868739.0 
89.4 : 1447868919.0 
79.4 : 1447869099.0 
79.4 : 1447869279.0 
59.4 : 1447869459.0 
39.4 : 1447869640.0 
19.4 : 1447869819.0 
0.0 : 1447870000.0 
-30.0 : 1447870180.0 
-60.0 : 1447870360.0 
-90.0 : 1447870540.0 
-120.0 : 1447870720.0 
-150.0 : 1447870900.0 

TITLE: 11/18 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Calibration
OUTGOING OPERATOR: Ryan C
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 4mph Gusts, 2mph 3min avg
    Primary useism: 0.04 μm/s
    Secondary useism: 0.46 μm/s 
QUICK SUMMARY: Locked for 22 hours, SUS charge and PEM mag. injections running now. Maintenance today, then PEM measurements for the rest of the week, because....

O4C will end in 30 minutes. What a great run! Well done everyone!!