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EXC Recovery(20240404)
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 * Suspension health check (Takahashi, Ushiba)
  * A01: Cable check
   * https://klog.icrr.u-tokyo.ac.jp/osl/?r=28840 -> please update.
   * Other data are expected to be normal.
  * A02 Porality Check
   * impossible to change. so no problem.
   * Cable disconnection happened, but they were recovered.
   * Replaced magnets was checked by TF etc.
   * https://klog.icrr.u-tokyo.ac.jp/osl/?r=29100
  * A03 Rubbing Check
   * https://klog.icrr.u-tokyo.ac.jp/osl/?r=29100
  * A04: Range and Calibration
   * The stepper motor range was checked.
   * Calibration will be the same.
  * A05: Watchdog Setting: Skip
  * A06: Height Measurement
   * Done: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28780
   * Setpoint change after the height setting. So the height could be changed.
   * If we believe LVDT values, we believe the height would not change in the orders of mm.
  * A08: Calibration:skip
  * A09: Spectrum(spectra of IM/MN photosensors.)
   * OK https://klog.icrr.u-tokyo.ac.jp/osl/?r=29102
   * OK https://klog.icrr.u-tokyo.ac.jp/osl/?r=29107
  * A10: Transfer Function
   * OK as modeling: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29100, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29106
   * Phase delay in R -> R, but no such delay in other DoFs. The data in the air tends to have such phase delay in the DoFs. No influence on IFO/Sensitivity.
   * BF resonance has changed from 0.3 to 0.6Hz. Assuming this changes, the TF can be explained. https://klog.icrr.u-tokyo.ac.jp/osl/?r=28990, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29106
   * We need change the filter shape according to these changes. UGF was set around 0.01Hz. So a fine tune is necessary.
 * Oplev Check (Yokozawa, Akutsu)
  * MN: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28905
  * TM: Easy to find. SI should be cared. Will be don in Monday.
  * PF: Easy to find. SI should be cared. Will be don in Monday.
 * Green flash at REFL and Trans PD
  * REFL: OK
  * TMSX: No beam on PD. will be done on Monday. No CCD and PD at present.
  * Flash can be seen in Tcam.
 * X-Pcal homeworks
  * The spec loss at PBS can be comparable with the mysterious loss: Loss of power of ~ 4 %: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29081
  * Cleaning inside was done: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29091

 *Windows Cleaning
  * Done: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28976, 
  * Blanck ports: 
  * check whether bolts have holes or not.

 * Tcam (Yokozawa and ChenDan, and Yamamoto)
  * Consistent with CAL data: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28830
  * Grenn image can be seen.
  * No problems from the Pcal side.

 * TMSX optical system (Akutsu and his selected persons)

 * Baffle PDs (Yokozawa and his selected persons): 
  * Check on Monday.
  * A power supplier is ready? 

 * NAB, WAB (Akutsu)
  * NAB: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28757
  * WAB: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28758, https://klog.icrr.u-tokyo.ac.jp/osl/?r=28627

 * Vacuum system (Kimura-san / Uchiyama-kun and their selected persons)
  * tie rod adjustment between EXC and TMSX to avoid stress when the only EXC side is pumped down.
  * Replaced flange
  * Nasty air parts were replaced.
  * Vacuum alert recovery after pumping down.
  * GV interlock will be tried after pumping down.
  * The broken cc-10 was replaced.
  * N2 purge is necessary for EXV.

 * Cryo-system (Kimura-san and his selected persons)
  * All temp signals are obtained?
  * Connector change is required for the heat link suspensions.
  * Cryocon alert to slack after cooling.
  * No interlock for TMP around the Cryostat.