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Detector Operation (Operations Report)
Sposito - 23:00 Friday 17 August 2018 (42470) Print this report
Operator report - Afternoon shift 17/08

Today we had some problem in relocking the ITF due to some SSFS fault. This was caused by the LNFS, after fixed this issue ( 16.04 UTC just put LNFS in external mode), we menage to relock the ITF at LOW_NOISE 3 and the calibration shift finally started (see the dedicated entry for details). ~18.00 UTC Calibration activities ended so I stopped the Commissioning mode from ITF status and as agreed with the crew I relocked the ITF in LOW_NOISE 3 (18.48 UTC). 20.14 UTC ITF  unlocked and relocked at 20.28 UTC in LOW_NOISE.

ITF left in relocking mode LOW_NOISE 3 as requested by the crew

Vpm

18.53 UTC FbmStDy restarted after a crash

Comments to this report:
carbognani - 10:26 Saturday 18 August 2018 (42472) Print this report
This morning I found Metatron stuck for almost 4 hours trying to lock the first OMC (LOCKING_OMC1_B1s2_DC state). I brought it to DOWN and after collecting an unlock while engaging the SSFS the locking procedure went trough very quickly over the locking of both OMCs.

I leave the interferometer in LOW_NOISE_3 with the autorelock failsafe engaged (it must not have been engaged before).
Current Horizon around 14 Mps as it could be usually achieved yesterday at the beginning of every lock (Fig. 1)
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