Full report available here.

Summary:

• Daily observing duty cycle: 66.7%, 32.1%, 61.5%, 57.7%, 70.6%, 82%, 75.1%. Week average: 63.7%
• Range typically hovered between 150-160 Mpc, occasionally pushing a few Mpc above 160
  • Thursday Apr 18 saw abnormally low sensitivity in the middle of the day, unclear why it happened but was fixed after switching FD squeezing off/on
• Occasional high winds throughout the week which depressed sensitivity or led to lock-losses/difficulty re-locking. Microseism mostly calm throughout week
• Nearby earthquake on UTC April 20 did not cause lock-loss
• On Sunday noticed increased rate of glitches near 4 kHz, difficult to spot in a spectrogram
  • Generated omegscans which show that the glitch time/frequency structure does not extend down to lower frequencies
• Saw high-frequency broadband noise on some days lasting about 1 hr after the start of each lock segment, intermittent noise at ~33 Hz potentially related to ground vibrations in CS
• Several summary page (range, strain) plots on Friday Apr 19 are blank after 6:30 UTC due to frame issues