== KAGRA Commissioning status at DET meeting == * Date : 2022/06/20 === Overall schedule === * (In case of no trouble) * 6/20 - 6/24 Leak of End Y * 6/27 - Repair the leak point and start the pumping down * 6/20 - 7/1 Suspension commissioning Type-Bp * 7/4 - 7/8 Interferometer commissioning * 7/11 - 7/22 Suspension commissioning Type-B * 7/25 - 7/29 Acceptance check * 8/1 - Closing the center area * Mid size baffle installation * ISS installation * High power laser installation * (LVK information) * O4a will start March 2023 [[https://observing.docs.ligo.org/plan/|web]] === Progress of commissioning === * Y arm commissioning * IY leak test done [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21135|klog#21135]] * IY oplev windshield installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21192|klog#21192]] * End Y : Start the leak (very slowly to avoid the dust.) * 1 week leaking, fixing early next week [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21191|klog#21191]] * Center area commissioning * MICH fringe detected ([[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21149|klog#21149]]) * Mirror cleaning(first contact) and mid-size baffle installation * PR2 : Installed * SR2 : Installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20205|cleaned]] * BS : Installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20857|cleaned]] * PRM : Installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20702|cleaned]] * PR3 : Installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21082|cleaned]] * SR3 : Not yet [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21212|cleaned]] * SRM : Not yet (When replacement?) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21208|cleaned]] * Others * ITMX glitch from ADC [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21185|klog#21185]] * PR traverser limit switch install * Green related work === Interesting data === * X arm cavity * Both IR and GR * Y arm commissioning * Both IR and GR * Center area commissioning * Main IR * IMC (Input Mode Cleaner) * ASC (Alignment Sensing and Control) done * Long term stability check * Beam power, beam position, oplev monitoring * Glitch investigation * Temperature dependence * Relationship between PSL room * With PEM channels * (Hammering test?)