== Weekly PEM meeting == * 2023/05/12(Fri) 17:00- * Regular meeting * Zoom2 : https://zoom.us/j/6676627462 ==== General announcement ==== * O4a run will start from 24th May * 4 weeks run it will finish 21st Junne * Mostly onsite and Mitaka member will have a shift for observation * Not disagree that offsite member come KAGRA during run * CAL/DET week from 17th May * We will stop the innterferometer update * SEO budget to PEM is limiting * KAGRA visiting plan * Now, the budget of KAGRA is limiting, but if you want to visit Kamioka, please contact to Yokozawa ==== Meeting and Conference issue ==== * XIII Einstein Telescope Symposium [[https://indico.ego-gw.it/event/562/abstracts/]] * May 8–12, in Cagliari Italy * Washimi (online) : Schumann resonance amprification * Somiya (online) : Water NN * GWADW 2023 * 21 - 27 May, Elba, Italy * One day could be the day for "KAGRA commissioning support" and "experiences/results in KAGRA" presentation * The 3rd generation can be a large topics because ET is now proceeding. * 10th KIW * 29,30th May * Washimi (SOC) * Hoshino * ICRC 2023 [[https://amarys-jtb.jp/2023icrc/|url ]] * Nagoya * Deadline 2/20 * Yokozawa will present about KAGRA PEM (oral) * Washimi will present about Schumann resonance and SGWB * JPS meeting (Tohoku U) * Limiting hotel * Other meetings [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/DAWG/conferences|url]] If you have some presentation about PEM related, please contact to me. ==== Business travel ==== * Depending on the situation of COVID-19 * To Kamioka * No * From Kamioka * No ==== General issue ==== * Status * Sensitivity 1.2 -1.4 Mpc [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/DAWG/Detchar/klog/klog25188|latest]] * From the results of CAL/DET day at 4/26, calibration is consistent with previous measurement * Effect of earthquake at Noto peninsula * 5th May : Magnitude 6.7 at Noto peninsula * Several earthquakes are still happened * Interferometer is already recovered * Re-alignment at PSL room * Commissioning work * Alignment sensing and controls * We need the PR3 global control to keep the stable opleration * Trial is ongoing * If trial is not succeeded until the O4a, we will sometimes perform manual alignment * OMC alignment control problem * Fixing is ongoing * If trial is not succeeded until the O4a, we will sometimes perform manual trouble shooting * Tapping test and shaker injection * We performed the tapping test(Vibration injection test by hand) at 4/25 and 4/29 * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14941|Result(JGWDoc14941)]] * OMC chamber is most sensitive part, we performed the shaker injection test * Analysis is ongoing * Acoustic injection test * REFL table [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=25073|klog25073]] * POP table [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=25190|klog25190]] * Increasing the laser power * Toward the stable operation is higher priority, so if possible we will try to increase the laser power * Glitch investigation * ETMY oplev glitch * Solved by install the temperature control system * ITMY suspension glitch * Try to install the IR/GR filter in front of oplev QPD * IPC glitch * It sometimes happened that the time series sometimes jump during observation [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=24930|example(klog24930)]] * Trial of slim down the real time model * Trial the glitch reason by Sawada-san * 37 Hz glitch * It detected in OMC signal [[ https://klog.icrr.u-tokyo.ac.jp/osl/?r=25106|klog25106]] * 37 Hz and its harmonics frequency excited * Seeing in hveto analysis(?) * The reason is not understand yet * Lock loss investigation * Ongoing * Silent run * Night silent run restarted. * 出張PEM injection ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14016|planning form]]) * ==== Jurnal paper issue ==== [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Reports/JurnalPaperIssue|Details are here!]] * Micro seismic analysis (Hoshino) * Submit to CPC soon * [[https://ja.overleaf.com/project/627270d6b67cab411d1c7d32|Overleaf]] * Acoustic reverberation time paper (Washimi+) * Suspend * Re-measurement before O4? * Tonga GIF paper * Referee comments ==== Preparation for O4 ==== * Environment will be fixed today * Turned off the cooler and heater at the same time * High resolution heater * Finalize the PEM installation * Accelerometer to C chamber and TMS table (Maybe postpone after O4a, lower priority) * Microphone to C chamber (Maybe postpone after O4a, lower priority) * Investigation of the PEM injection * Tapping test is higher priority * Acoustic injection preparation * Output sound smaller compared from O3GK's * Magnetic injection * After O4a? * Voltmeter preparation * We made the PEM channel * K1:PEM-VOLT_{PSL,IMCREFL,REFL,ISS,AS}_TABLE_{GND,FLOAT,DIFF} * K1:PEM-VOLT_OMC_CHAMBER_{GND,FLOAT,DIFF} * AC power monitoring * Bought transreducer * Prepared * DC power monitoring * Arrived at Kamioka * After O4 * RF monitor with mokugo * Tiltmeter * RI detector * Newtonian noise * Discussion with DET members * Daily summary page PEM ==== Progress report ==== * Yuzurihara * Pastavi * Data Quality Report [[https://dcc.ligo.org/G2201168|slide]] * Data quality evaluation * Hoshino * Seismic motion analysis *Sato * Sound source analysid * Miyamoto * Weather analysis * Takatani * Calculation of Schumann resonance * Kume * Noise subtraction * Nishizawa * Water newtonian noise * Magnetic field analysis * Washimi * Daytime ground motion * Shaker injection OMC * Acoustic injection POP, REFL * Yokozawa * Morning silent run ==== Place for memo ==== * [[https://www.gw-openscience.org/O3/o3aspeclines/|Line noise list in O3a public data]] * [[https://pubplan.ligo.org/CW/KAGRA_VectorDM.html|Summary page for KAGRA O3 vector dark matter]]