ITF found in LOW_NOISE_3 and in Science Mode. It unlocked at 2:44 UTC due to an earthquake (2:33 UTC, M 6.5 - 36 km NNE of Olonkinbyen, Svalbard and Jan Mayen), due to its influence it's was possible to relock the cavities until 3:20 UTC. After a brief alignment of the End Mirrors, it was possible to relock at the first attempt, ITF back in Science Mode from 4:14 UTC.

Guard Tours (UTC)
21:30 - 22:13
0:14 - 0:51
3:29 - 4:09