== Weekly PEM meeting == * 2025/11/28(Fri) 17:00- * Regular meeting * Zoom2 : https://zoom.us/j/6676627462 ==== General announcement ==== * O4c [[https://observing.docs.ligo.org/plan/|url]] * Finished * Re-start --(4th June)-- 11th June end --(7th Oct.)-- 18th Nov. ==== Meeting and Conference issue ==== * Expand chief meeting * 9th Dec. * KAGRA F2F meeting * 12/15-17 @ South Korea * [[https://dac.icrr.u-tokyo.ac.jp/KAGRA/KSC/f2f/2025%20December|url]] * KIW13 * 12/18,19(+20) * [[https://indico.kgwg.org/event/173/|url]] * Other meetings [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/DAWG/conferences|url]] If you have some presentations about PEM related, please contact to me. ==== Business travel ==== * To Kamioka * Kaku and Abe (11/16-21) * From Kamioka * ==== Jarnal paper issue ==== [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Reports/JurnalPaperIssue|Details are here!]] * Non-linear ICA paper * SEO agreed * arXiv submission * Submission to PTEP * Schumann Resonance paper * Long term observation, seasonal variance * Amplified inside the mine * Others * O4(a+c) PEM paper * Start to investigate the topics * Microseism with machine learning * 1 Hz seismic motion paper * Sunil-san's result? ==== General issue ==== * LVK status * LIGO will continue the silent run(observation run?) after the commissioning work * KAGRA also keep IFO until warming up * KAGRA schedule * 11/18-11/20 Calibration * 11/25 - 12/05 PEM injection(TMSX, TMSY), TF measurements * 11/08 start the warming up * Keep the IFO as much as possible to evaluate the Q values with temperature * No special VIS tuning with changing the temperature * Finesse measurements * During warming up, laser characterization * New year : finished the warming up * Test for the high power operation * 4th March Scheduled black put * Prepare for the several PEM measurements * March : SRM replacements * April - : RSE commissioning ==== Progress report ==== * Nishizawa, Taruya, Himemoto * Water Newtonian noise * Schumann Resonance * Kaku * Magnetic field analysis * Abe * Parameter estimation of the schumann resonance * Murofushi * Earthquake and GIF analysis * Obara * Earthquake and suspension * Ohashi * Microseismic noise with machine learning * Kume, Ueno * Noise subtraction * Yokozawa * Lightening and blasting list up * Ground motion * Washimi * Newtonian noise ==== 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]]