Full magnetic mapping ITF 18W and tuned for O4 this time, for all locations the small coil is alighned with the markers opened door TCS room about 8:30 UTC monitor INF_TCSroom_TE glitch at 8:40 UTC TCS room with Ilaria: point absorber setup around 8:50 - switched off 4 devices: point absorbe NI power supply point absorber NI pre-amp point absorber pico-motors driver, thorlab module tri-axis piezo controller (piezo driver laser CO2) magnetic injections coil current monitor ENV_TCS_MAG_COIL_CURR_MON DAC channel ENV_NOISE_TCSroom glitch at 8:59:40 (to be checked) glitch at 9:04:45 9:16 Fabio goes to LowNoise3_SQZ (request by Fiodor) TCS_PR_CHROCC_V_OUT is decreasing ..... rom 2.87 to 2.85 V, is it a Problem? Ilaria contacted, then Piernicola glitch (small) at 9:19:30 glitch at 9:29:27 glitch at 9:29:59 glitch 9:53:37 glitch 10:18:20 ... glitch 11:31 glitch 11:56:46 WI tower coil axis EW sweep 2.5V, 1 - 600 Hz, 300s start 9:41:13 stop 9:48:37 we observe some excess noise fluctuating below 40Hz ... it is due to us! (amplifier produces a broadband noise (altrady noticed) coil axis NS start 9:50:27 stop 9:56:24 coil axis VERT start 9:58:01 stop 10.04.53 NI tower sweep 5V, 1-600Hz, 300s coil axis EW start 10:13:12 stop 10:20:29 coil axis NS start 10:21:22 stop 10:28:04 coil axis VERT start 10:29:40 stop 10:35:06 BS tower sweep 5V, 1-600Hz, 300s coil axis EW (we see an effect!) start 10;36:34 stop 10:44:17 coil axis NS start 10:45:01 stop 10:50:22 coil axis VERT start 10:51:30 stop 10:57:19 Left TCS room door open EEroom monitor ENV_IB_MAG_COIL_CURR_MON SIB1 tower (West side) sweep 1-600Hz, 5V, 300s coil axis EW start 11:13:47 (resonance peaks are more evident here) stop 11:19:35 coil axis NS start 11:20:24 stop 11:27;06 coil axis VERT start 11:28:25 stop 11:33:46 DET EEroom SDB1 tower (East side) sweep 1-600Hz, 5V, 300s coil axis EW start 11:51:24 (resonances peaks are evident here) stop 11:56:46 coil axis NS start 11:58:27 (resonances are well evident aslo here) stop 12:04:14 12:04:45 unlock .... NE suspension unlocked, seems and ENV noise (ACC) some seconds before coil axis VERT start 14:25:17 stop 14:31:25 approx. 13:30 UTC - phyiscally disconnected all cables from point absorber device on NI tower base 13:57 new lock - low noise 3 14:22:40 glitch (!) WE building ENV_WEB_MAG_SMALL_COIL_CURR_MON ENV_NOISE_WEB 14:48:19 ITF unlock because of NE: same kind of noise in ENV_ACC sensors further unlocks associated to NEB noise We stop here with injections and go to NEB to inspect Test Acoustic colored injections in CEB AcousticInjectionsCEB started at 16:42:41 %