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| * Crane inspection: Feb 22nd 11:30 - 12:30 |
Agenda/Minutes of the VIS Meeting on 2019/2/15
2019/2/15 13:30 -
Participants:
Progress report
Schedule Chart
Site work schedule: [[|XLSX]]
Type-A : (PDF/MPP)
Type-B: (PDF/MPP)
Type-C: (XLSX)
Type-A (Takahashi)
Past week report
Plan for coming weeks
Type B (Mark)
Report for week of 2/12 (February 12th)
- On Saturday we moved the vertical IM OSEMs in order to compensate for a large pitch in the IM introduced when the IR laser as aligned.
- I took transfer functions over the weekend and the system looks healthy.
- Although moving the OSEMs was done successfully, I accidentally pulled the cables and moved the flying saucer cable clamp set. I rotated it back judging the position by visual inspection, but an IM yaw drift appeared since then. It's moving with a speed of 0.2 urad/min.
- On Tuesday we moved the Im back to zero but the drift continued. At the time of writing these lines it is at -833 urad, with H2 and H3 at 93 um and 47 um and still drifting.
- On Saturday we connected the SRM geophones in-air cables and confirmed we had a signal.
- However, on Wednesday morning the geophones are not giving any signal. We cheked the master model channel and realized the problem was not the slave model. We suspect a hardware fault.
- I checked the in-air cables were connected.
- We released the SRM optical bench and wiped the places where sticky tape was used to fix support blocks.
- We wiped the SR2 optical bench and security structure. SR3 and SRM had been wiped by Hirose-san, Hirata-san and Fujii-kun.
- Terrence worked on splitting the real-time models for all the SR suspensions.
- Today the pumping down of the central area will begin around noon. We will monitor the four inverted pendulums
- We got rid of the cable reel used in the SR2 rack.
Plan for coming weeks
Type-Bp (Shoda)
Past week report
Plan for coming weeks
OMMT & OSTM (Ohishi)
Past week report
Plan for coming weeks
VIS electronics (Tanaka)
Past week report
Plan for coming weeks
Other site works
- Crane inspection: Feb 22nd 11:30 - 12:30
Safety
- Incidents:
- Foreseen risks
- Type-A:
- Type-B:
Discussion
Travel Plans
- Travel (Week of 2/18):
- Takahashi:
- Okutomi:
- Sato:
- Lucia:
- Fabian:
- Mark:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii:
- Tanioka:
- Tanaka:
- Terrence
- Travel (Week of 2/25):
- Takahashi:
- Okutomi:
- Sato:
- Lucia:
- Fabian:
- Mark:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii:
- Tanioka:
- Terrence
Next meeting
On 2019/2/22(Fri)