I prepared the script to show the list of lockloss time from the LSC_LOCK guardian state including OBSERVATION. When you run the script, the list will be shown (Fig).

• The script is /users/yuzu/lockloss/lockloss_time.py.
• Due to the recent update of SYS_LOCKLOSS (klog), we can obtain the lock duration after 2025/1/19. To fill the duration before the 2025/1/19, I generated the segment files to satisfy K1:GRD-LSC_LOCK_STATE_N == 9990 and transfered to Kamioka computer. The script reads that segment files.