= DQ Shift checklist (2020 Apr 7-20) =


||<#AAFFC3 style="text-align:center; "> '''Task No.'''   ||<#AAFFC3 style="text-align:center; "> '''Theme''' ||<#AAFFC3 style="text-align:center; "> '''Substance''' ||
||1. || Check SummaryPage works or not                   || See https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/monitoring/ <<BR>>Status should be OK ||
||2. || Check Sensitivity & Binary range transition      || See https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/today/ <<BR>>When you find some transitions, post to [[http://klog.icrr.u-tokyo.ac.jp/osl/|klog]] ||
||3. || Check Duty Cycle      || See https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/day/$(date)/lock/ifo/, and post to [[http://klog.icrr.u-tokyo.ac.jp/osl/|klog]] ||
||4. || Check Spectral line noise (on one day before)                      || See https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/yesterday/detchar/fscan/ <<BR>>When you find new or disappeared lines, post line information (frequency, transition time, etc.) to [[http://klog.icrr.u-tokyo.ac.jp/osl/|klog]] ||
||5. || List Lockloss times                              || See https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/today/ <<BR>>We can get the GPS time list at lockloss (GPS end). See below for more challenging characterization.||
||6. || Check the input power|| The EPICS channel showing the input power is K1:LAS-POW_IMC_DC_OUT_DQ. Or note a rough number from SummaryPages => PSL => Summary||
||7. || DQ shift Reports || Post the findings on klog, for example, [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12282 | klog12282]]||

=== Additional DQ challenge 1: Lockloss investigation ===
 '''If you have an access to the control room machines or main data server''', please try to find the cause of lockloss by checking the following important channels! Many of the listed channels can be found in SummaryPages, however it might be difficult to look closer only with it.

 * Did any suspensions move drastically?
  * Check the following oplev channels:
   * K1:VIS-{PRM, PR2, PR3, BS, SR3, SR2, SRM, ITMX, ITMY, ETMX, ETMY}_TM_OPLEV_{PIT, YAW}_DIAG_DQ (urad) for large suspensions.
   * K1:VIS-{MCI, MCO, MCE, IMMT1, IMMT2, OMMT1, OMMT2, OSTM}_TM_OPLEV_{PIT, YAW}_OUT_DQ (not calibrated in urad except MCI, MCE, MCO) for type-C suspensions.
 * Did any error signals have obvious glitch or saturation?
   * Error signal channels are K1:LSC-{DARM, MICH, PRCL, MCL}_IN1_DQ. (This DQ channel existed since Apr 15)
 * Did the OMC DC signal (DARM error signal) have glitches or saturation?
   * Check K1:OMC-TRANS_DC_{A,B}_IN1_DQ
 * Was POP90I buildup (the sideband buildup within the power-recycling cavity, PRC) degrading before lockloss?
   * K1:LSC-POP_PDA2_RF90_I_NORM_DQ 
 * Which arm did start degrading first?
   * IR X buildup: K1:LSC-TR_X_NORM_OUT_DQ
   * IR Y buildup: K1:LSC-TR_Y_NORM_OUT_DQ
   * GR X buildup: K1:AOS-TMSX_GR_PDA1_OUT_DQ
   * GR Y buildup: K1:AOS-TMSY_GR_PDA1_OUT_DQ
 
 * Check Chihiro's glitch plot: https://gwdet.icrr.u-tokyo.ac.jp/~controls/GlitchPlot/index.html, and report any interesting findings on klog.