ITF found in Troubleshooting mode since the previous shift.

At 5:30 UTC I contacted the ISYS on call to inform him that transmitted input power had jumped to 17.7 W.

We decided to recover first the transmitted input power and then face the locking troubles.

At 7:00 UTC Antonino started to work in Laser Lab and at 9:00 UTC the transmitted input power was back to its standard value (~19.5 W), see entry ITF input power tuning.

At 9:00 UTC we started the investigation about the locking troubles; in some way we reached LOW_NOISE_3_SQZ at 11:53 UTC, Science mode set at 12:02 UTC.

SUSP
WE LC open by the guardian at 6:19 UTC, 9:26 UTC, 11:03 UTC after ITF unlocks; properly closed.

Other
(19-09-2019 21:00 - 20-09-2019 12:00) The ITF unlocked at 21:00 UTC yesterday evening and it started to be unstable unlocking at various states; at the same time the transmitted input power jumped to 17.7 W.

ISC
(19-09-2019 22:00 - 20-09-2019 02:00) From remote
Status: Ended
Description: Locking troubles
(20-09-2019 06:00 - 20-09-2019 12:00) On site
Status: Ended
Description: locking troubles

ISYS
(20-09-2019 07:00 - 20-09-2019 09:00) On site
Status: Ended
Description: The transmitted input power jumped to 17.7 W.
Actions undertaken: Standard power recovered by Antonino