== Actuator efficiencies ==

|| '''Date'''           || '''BS'''       || '''ITMX''' || '''ITMY'''   || '''ETMX''' || '''ETMY'''   || '''PRM''' || '''klog''' ||
|| '19/11/26 Free swing || 6.02e-11       || -          || 1.71e-12^※1^ || -          || 6.05e-12^※1^ || -         || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=11754|#11754]] ||
|| '20/02/18 Free swing || (6.02e-11)^※2^ || -          || -            || -          || -            || 1.01e-9   || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=13020|#13020]] ||
|| '20/04/07 Pcal       || -              || -          || -            || 4.66e-12   || 4.03e-12     || -         || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14073|#14073]] ||
|| '20/04/16 Pcal       || -              || -          || -            || 4.71e-12   || 4.06e-12     || -         || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14194|#14194]] ||
|| '20/04/21 Free swing || 5.63e-11       || 5.17e-12   || 5.84e-12     || 4.46e-12   || 3.45e-12     || -         || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14554|#14554]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14265|#14265]] ||
|| '20/04/21 Pcal       || -              || -          || -            || 4.59e-12   || 3.91e-12     || -         || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14260|#14260]] ||
|| '20/06/16 Free swing || 6.28e-11       || -          || -            || -          || -            || -         || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14557|#14557]] ||
|| '20/06/17 Free swing || (6.28e-11)^※2^ || -          || -            || -          || -            || 2.98e-9   || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14555|#14555]] ||

  * f^-2^ m/ct
  * ※1: Before replacement of coil drivers
  * ※2: Referred to the previous measurement

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== Actuator efficiencies ratio ==
|| '''Date''' || '''ITMX/BS''' || '''ITMY/BS''' || '''EMTX/ITMX''' || '''ETMY/ITMY''' || '''PRM/BS''' || '''klog''' ||
|| '20/02/18  || -             || -             || -               || -               || 11.6         || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=13020|#13020]] ||
|| '20/04/21  || 0.09186       || 0.1037        || 0.8623          || 0.5912          || -            || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14265|#14265]] ||
|| '20/06/17  || -             || -             || -               || -               || 47.5         || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14555|#14555]] ||


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== 2nd Engineering run (2019/7/13) ==

|| ||||'''contrast'''||'''optical gain (cnt/m)'''||
||'''Before'''||||78.2%||2.63e8||
||'''After'''||||64.3%||2.18e8||