[Ling-Wei, Yun-Jing]

The interferometer tried to relock at 17:42 JST.

The interferometer was relocked at 18:45. The corresponding NS-NS binary range and IMC output power are respectively 2.9 kpc and 4.4 w. It was unlocked at 20:38 JST, and the final corresponding NS-NS binary range and IMC output power are respectively 197.9 kpc and 4.5 w. The duration time for this lock is 1 hour 53 min 17 sec. The interferometer was relocked at 21:39 JST until 22:45 JST. During this locked state the high frequency part of sensitivity curve became better than the best one (Feb. 20th, 541kpc/1.4?). The corresponding best sensitivity is 260.3 kpc. The duration time for this lock is 1 hour 7 min 15 sec.

The centering control of laser beam is disable at 22:27 JST, the LSC_LOCK Guardian in low noise state.

The value of K1: ALS-Y_ARM_INPUT_OUT is a little bit low this evening, the value sometimes decreased to 0.63.

Figures:

Fig. 1: The DARM (current) sensitivity curve at locked status at 21:39 JST.

Fig. 2: The interferometer status at 21:39 JST.