Reports until 21:06, Wednesday 29 March 2017
H1 General
nutsinee.kijbunchoo@LIGO.ORG - posted 21:06, Wednesday 29 March 2017 - last comment - 22:06, Wednesday 29 March 2017(35206)
Finally back to Observe

Nutsinee, Kiwamu (on email and phone)

 

INITIAL ALIGNMENT

MICH_DARK_LOCKED had a bit of an issue today. It wouldn't go dark no matter how good the alignment seemed. Kiwamu suggested I added 5 counts offset on MICH1. But I was coming back from SRC_ALIGN so I had 10W while attempted to lock MICH for the last time. It worked. Not sure what fixed it though. That 5 counts offset has been removed as soon as I got pass MICH.

 

Spent quite some time on SRC_ALIGN. It seems like every time ASC tried to engage it kicked SRM too hard and tripped the WD. Beam looked round and error signals looked fine (fluctuating around 0). Just when I decided to call Kiwamu ASC was able to engage.

 

LOCK ACQUISITION

OMC was a little shy. Needed to request READY_FOR_HANDOFF twice.

 

SDFs

Accepted a couple of SDFs (LSC-ASAIR and SUS_OMC) so I could flip the intent bit. Let us (ops) know if we should revert them back next time we loses lock.These are probably the left overs from PRMI work. See the attachment.

Images attached to this report
Comments related to this report
nutsinee.kijbunchoo@LIGO.ORG - 21:25, Wednesday 29 March 2017 (35207)

Lockloss 04:23

Stepped out to make coffee. PI rung up when I came back. Couldn't damp it in time.

nutsinee.kijbunchoo@LIGO.ORG - 22:06, Wednesday 29 March 2017 (35208)

05:05 UTC Back to Observe