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ID Date Author Type Category Subject Text   16728   Tue Mar 15 14:10:41 2022 Anchal Summary CDS c1su2 model remade, reinstalled, restarted after the update I have restarted c1su2 model with the connections of Run Acquire switch to analog filters on coil drivers. Following steps were taken:      16729   Tue Mar 15 18:42:37 2022 Anchal Summary BHD Part IX of BHR upgrade - AS1 resuspended and OSEMs tuned http://nodus.ligo.caltech.edu:8080/40m/16722 http://nodus.ligo.caltech.edu:8080/40m/16716      16730   Tue Mar 15 18:45:12 2022 Anchal Summary BHD Part X of BHR upgrade - BHDBS Path setup [Paco, Anchal] BS Chamber work ASL was positioned in nominal place. PR3      16733   Thu Mar 17 17:23:22 2022 Anchal Summary BHD Part IIa of BHR upgrade - Green laser alignment [Anchal, Yehonathan] (on Y Arm) We first checked if the PZT mirrors M1 and M2 can be controlled. They indeed      16734   Thu Mar 17 19:12:44 2022 Anchal Summary CDS c1auxey1 slow controls acromag chassis installed, not powered [Anchal, Tega] We installed c1auxey1 computer and the acromag chassis in 1Y4. The computer      16737   Fri Mar 18 19:10:51 2022 Anchal Summary CDS c1auxey1 slow controls issues I started the modbusIOC service on c1auxey1 and added PD variance channels for UR and SD as well.  There are unfortunately      16738   Mon Mar 21 14:22:52 2022 Anchal Update SUS ETMY Alignmnet offsets needed to be changed I'm not sure why but the PIT and YAW offset values of +2725 and -2341 were not sufficient for the reflected OPLEV beam to      16740   Mon Mar 21 18:24:07 2022 Anchal Summary BHD Part IIa of BHR upgrade - Green laser alignment on Yarm [Anchal, Tega] We did the following alignment steps on Yarm today:      16741   Mon Mar 21 18:42:06 2022 Anchal Summary CDS c1auxey1 slow controls issues Another issue, Green Y Shutter can not be controlled with the EPICS controls right now. This needs to be investigated.      16742   Thu Mar 24 19:20:28 2022 Anchal Summary BHD Part IIa of BHR upgrade - Green laser alignment on Yarm [Anchal, Paco] Uneloged: yesterday, Paco and Ian tried locking the green laser on      16743   Fri Mar 25 11:39:14 2022 Anchal Update SUS ETMY SUS Electronics Replacement - Questions After Ian updated the cts2um filters for OSEM, shouldn't the damping gains be increased back by factor of 10 to previos      16744   Fri Mar 25 18:20:28 2022 Anchal Summary BHD Part IIa of BHR upgrade - Green laser alignment on Yarm [Anchal, Paco, Shruti] Today we found out that the laser controller at the Yend had it's      16756   Mon Apr 4 17:03:47 2022 Anchal Summary CDS c1susaux2 slow controls acromag chassis fixed and installed [Anchal, JC, Ian, Paco] We have now fixed all issues with the PD mons of c1susaux2 chassis. The slow      16757   Tue Apr 5 18:15:06 2022 Anchal Summary BHD Part IIa of BHR upgrade - IR laser alignment on Xarm [Paco, Anchal, Ian, JC] We attempted the alignment of IR beam into the arm cavities. We used PR2 and      16759   Wed Apr 6 12:03:51 2022 Anchal Summary BHD Part IIa of BHR upgrade - IR laser alignment on Yarm [Anchal, Paco] After Koji reduced the output resistors on PR2/PR3 coil drivers, we got much better      16762   Thu Apr 7 17:59:51 2022 Anchal Summary BHD Part IIa of BHR upgrade - IR laser alignment on Yarm [Anchal, Paco, JC, Tega] Today we have aligned the Yarm cavity for IR, with verified 1.5 roundtrips.      16804   Fri Apr 22 12:09:51 2022 Anchal Update Coil Drivers Please update DCC pages Nice. Please put this information on the DCC pages of the coil driver units. You'll find links to all the units in this document      16805   Fri Apr 22 12:15:08 2022 Anchal Update BHD Cable post installation If someone gets time, let's put in all the cable posts and clean up our cable routing on the tables.      16810   Mon Apr 25 16:57:57 2022 Anchal Update BHD Cable post installation [Anchal, Tega, JC] We installed cable posts in ITMY, BS, and ITMX chambers for all the new suspensions.      16811   Mon Apr 25 17:24:06 2022 Anchal Update CDS DAQ still down I investigated this issue today. At first, it seemed that only new suspension testpoints are inaccessible. I was able to use diaggui      16815   Wed Apr 27 16:28:57 2022 Anchal Summary BHD BHD Upgrade - Retreiving arm cavity alignment [Anchal, Paco, JC] We had to open ITMY, ETMY chamber doors to get the cavity aligned again. Once      16816   Thu Apr 28 09:12:18 2022 Anchal Update BHD Restoring arm alignment This would be a daily first task in the morning. We'll need to check the status of arm alignment and optimize it back to      16817   Thu Apr 28 11:53:10 2022 Anchal Summary BHD POP_SM4 and POP_SM5 Assembly POP_SM4 I tried out this stack today and found some change of plans.      16818   Thu Apr 28 17:45:53 2022 Anchal Update BHD POX Beam issues [Anchal, Paco] We investigated the low power issue with POX11 photodiode.      16819   Thu Apr 28 18:07:04 2022 Anchal Update BHD Restoring arm alignment at EOD Restored arm algiment to get 0.8 max flashing on YARM and 1 max flashing on XARM. I had to move input alignment using TT2-PR3 pair      16824   Mon May 2 17:51:30 2022 Anchal Update BHD POX Beam aligned on RFPD, YARM locked [Paco, Anchal] We found that one of the Y1-1037-45P marked mirror that we used was actually curved.      16826   Tue May 3 14:02:09 2022 Anchal Summary BHD Installed POP path in ITMX Chamber [Anchal, JC] I installed POP_SM4 and POP_SM5 in the ITMX chamber in the nominal positions.      16829   Wed May 4 13:09:42 2022 Anchal Update BHD IMC table balanced again, IMC is locking, YARM is locking [Paco, JC, Anchal] We balanced the IMC table back again to point that got us 50% of nominal      16832   Thu May 5 14:46:22 2022 Anchal Update BHD POP beam height lowered, POP_SM4 raised [Anchal, JC] We first aligned the single arm cavity resonance for both arms to get maximum      16835   Fri May 6 13:48:34 2022 Anchal Update BHD WFS loop instability fixed [Yuta, Anchal] We investigated why WFS loop wasn't working. It seemed like WFS1 PIT error signal      16837   Mon May 9 18:43:03 2022 Anchal Update BHD ITMX table layout corrected As I went to correct the ITMX Oplev mirrors, I found that both mirrors were placed in very different positions than the design      16849   Thu May 12 20:11:18 2022 Anchal Update BHD BHDBS Output beams steered out to ITMY table I successfully steered out the two output beams from BHD BS to ITMY table today. This required significant changes on the table,      16854   Mon May 16 10:49:01 2022 Anchal Update DAQ DAQ troubleshooting [Anchal, Paco, JC] Thanks Chris for the fix. We are able to access the testpoints now but we      16859   Mon May 16 19:14:17 2022 Anchal Update BHD Camera set on AS path and BHDBS output path [Anchal, Paco, Yuta] We aligned AS path avoiding any clipping to the AP table where we setup      16860   Tue May 17 18:43:38 2022 Anchal Update BHD Placed SRM in ITMY Chamber [Anchal, Paco, Yuta] SRM Placement SRM was moved from its parked location to the      16862   Wed May 18 09:02:52 2022 Anchal Update BHD WFS1 PD centered I centered WFS1 PD so that IMC WFS Servo does not go out of range.        16863   Wed May 18 17:23:15 2022 Anchal Update BHD Placed PRM in BS Chamber [Anchal, Paco, Yuta, JC] SRM Oplev setup We setup SRM oplev path for the aligned position      16866   Thu May 19 19:05:59 2022 Anchal Update BHD BS Chamber all work finished, BHD path setup [Anchal, Paco, Yuta] BS Oplev Path The changed position of PRM (40m/16863)      16872   Tue May 24 15:21:13 2022 Anchal Update BHD Freeswing tests of new SOS started I modified the script freeSwing.py to use damping loop output switches to free the optic instead of watchdog or coil output      16899   Tue Jun 7 19:40:45 2022 Anchal Update SUS ITMY changed output matrix to disable use of UL coil Since UL coil actuation is lost, we modified the output matrix of ITMY to use only UR, LR and LL face coils for POS, PIT and YAW      16913   Tue Jun 14 18:45:43 2022 Anchal Update SUS LO2 lower magnets are stuck in coil, won't come off [Anchal, Yuta] In the weekend, I ran a free swing test on all optics. During this test, LO2      16915   Tue Jun 14 20:57:15 2022 Anchal Update ASC Yarm ASS working now I finally got YARM AS to work today. It is hard to describe what worked, I did a lot of monkey business and some dirty offset      16925   Thu Jun 16 18:30:07 2022 Anchal Update SUS New diagonalized input matrices applied I used the same fre swing data to diagnolize input matrices of following optics: MC1, MC2, MC3      16931   Tue Jun 21 08:36:50 2022 Anchal Update SUS Diagonalized input matrices for LO1, freeSwing on ITMY and ITMX Over the weekend, I ran freeSwing test with sequential kicks in specific DOFs for LO1, ITMY, ITMX. LO1 results were successfully      16938   Wed Jun 22 14:44:03 2022 Anchal Update BHD Fixed DC error in c1su2, added new library model for suspensions The 0x2000 error in c1su2 happens whenever we make it and install it as the default data acquisition rates are too much in the      16946   Sat Jun 25 14:29:48 2022 Anchal Update IOO WFS issues This issue is very weird and still unresolved. Without WFS loops, we'll have to realign IMC often and we might loose IMC alignment      16957   Tue Jun 28 17:07:47 2022 Anchal Update Calibration Added Beatnote channels in demodulation of c1cal I added today demodulation of C1:LSC-BEATX/Y_FINE_I/Q in the c1cal demodulation where different degrees of freedom can be dithered. For McCal      17010   Mon Jul 18 04:42:54 2022 Anchal Update Calibration Error propagation to astrophysical parameters from detector calibration uncertainty We can calculate how much detector calibration uncertainty affects the estimation of astrophysical parameters using the following method:      17016   Mon Jul 18 21:41:42 2022 Anchal Summary LSC FPMI locking procedure using REFL55 and AS55 Now that you have found a working configuration, I suggest we update CARM and DARM filter banks so that they are used in locking those      17017   Tue Jul 19 07:34:46 2022 Anchal Update Calibration Error propagation to astrophysical parameters from detector calibration uncertainty Addressing the comments as numbered: Yeah, that's correct, that equation normally

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