Reports until 15:30, Thursday 04 August 2016
H1 General
cheryl.vorvick@LIGO.ORG - posted 15:30, Thursday 04 August 2016 - last comment - 16:01, Thursday 04 August 2016(28872)
Ops Day Summary:

State of H1: OMC alignment work with IR beam started today, other parasitic work continues

 

Assistance: Stefan, Kiwamu, Sheila, JeffK

 

Alignment issue encountered and resolved:

 

Alignment of the IR beam to the OMC took a 200urad change in SR2 pitch, which Stefan and Kiwamu tracked down to a change on SR3 pitch driven by the cage servo, which read OSEM values.  

 

The SR3 OSEMs had gotten some extra light and the servo moved the optic. Reseting SR3 restored the alignment to the OMC with only a reasonable (much less that 200urad) change on SR2.

 

OMC issue encountered and resolved:

 

Koji was unable to change the output of OMC-PZT2, which Sheila tracked down to a dependency on PZT1.  Once the setting for PZT1 was changed, it was possible to manually control PZT2.

 

Activity: all times UTC

 

15:00-19:00:

everyone back for lunch ~19:00-20:00

 

20:00-23:00

 

Currently: - people at these locations

Currently: - issues with H1

Comments related to this report
travis.sadecki@LIGO.ORG - 16:01, Thursday 04 August 2016 (28874)

Log for last half hour of the day:

22:35 Dave restarting EY SUS front end

22:40 I reset ETMy, TMSy, and EY ISI watchdogs

22:43 TJ to HAM 6 to deliver CDS laptop

22:47 Jason and Nutsinee out of LVEA