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Reports until 00:00, Wednesday 31 July 2019
LHO General
patrick.thomas@LIGO.ORG - posted 00:00, Wednesday 31 July 2019 (50939)
Ops Eve Shift Summary
TITLE: 07/31 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 116Mpc
INCOMING OPERATOR: Jeff
SHIFT SUMMARY: Spent the majority of the shift working with Jeff K. attempting to recover from the ITM camera move.
LOG:

23:20 UTC Observing
23:48 UTC Lock loss
23:48 UTC Rick and company to optics lab
23:51 UTC Kyle back from mid stations
00:48 UTC Rick and company done in optics lab
01:18 UTC Timesh out of optics lab
04:01 UTC Observing
04:31 UTC GRB E345536. Fermi 586240252 TRIGGER_DUR:     0.016 [sec] Stand down
Set INJ_TRANS to INJECT_KILL
05:14 UTC Set INJ_TRANS to INJECT_SUCCESS
06:03 UTC SEI_CONF to EARTH_QUAKE for earthquake from El Salvador


Relock attempts: [Jeff K., Patrick T.]

1.
Ran CHECK_MICH_FRINGES and PRMI_ASC
Skipped SHUTTER_ALS
Lock loss from ENGAGE_ASC_FOR_FULL_IFO

2.
Lockloss from LOCKING_ARMS_GREEN, WFS drove ALS X off

3.
Turned off ALS X WFS DOF 1 PIT during LOCKING_ARMS_GREEN, waited for WFS to converge, then turned it back on
Skipped SHUTTER_ALS
Lock loss from ENGAGE_SOFT_LOOPS

4.
Lockloss from LOCKING_ARMS_GREEN, WFS drove ALS X off

5.
Turned off ALS X WFS DOF 1 PIT during LOCKING_ARMS_GREEN, waited for WFS to converge, then turned it back on
Stopped at DRMI_LOCKED_CHECK_ASC and moved ITMY in attempt to increase POP80. Increased by 1 count.
Skipped SHUTTER_ALS
Lock loss from ENGAGE_SOFT_LOOPS

6.
Setting camera references to current offsets
Running initial alignment
POP80 buildup now to 66
Lockloss from CARM_TO_TR

7.
Turned off ALS X WFS DOF 1 PIT during LOCKING_ARMS_GREEN, waited for WFS to converge, then turned it back on
Waiting longer for PRC2 Yaw to converge at DRMI_LOCKED_CHECK_ASC
Skipped SHUTTER_ALS
Lockloss from ENGAGE_SOFT_LOOPS

8.
Turned off ALS X WFS DOF 1 PIT during LOCKING_ARMS_GREEN, waited for WFS to converge, then turned it back on
Lockloss from CARM_TO_TR
FSS is red and TPD is flashing on ops overview. Hit DOWN and then INIT. TPD stopped flashing but FSS is oscillating. Eventually stopped oscillating on its own.

9.
Turned off ALS X WFS DOF 1 PIT during LOCKING_ARMS_GREEN, waited for WFS to converge, then turned it back on
Lock loss from ENGAGE_ASC_FOR_FULL_IFO. I think PRC2 Yaw is running away. I tried to turn it off and clear its history, but it ran away faster.

10.
Did not need to turn off ALS X WFS DOF 1 PIT during LOCKING_ARMS_GREEN.
Back to observing. Not sure what if anything did it. Keita stepped slowly through steps starting at PREP_ASC_FOR_FULL_IFO.
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