TITLE: 01/23 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 117Mpc
INCOMING OPERATOR: Corey
SHIFT SUMMARY: relocked first try, one break in Observe, ETMY violin modes 12, 18, 20 damped
LOG:
- 09:31:17 - H1 in NLN
- 09:41:23 - done testing ETMY mode 20 new filter
- 09:46:16 - done handling SDF diffs, H1 in Observe
- 11:00:39 - I clicked ETMY mode 12 -30deg phase filter, FM2, and that took H1 out of Observe, unmonitored FM2/3/4/5, -30, +30, -60, +60 deg
- 11:01:30 - H1 in Observe
- 14:45 - JeffB, Tyler, Chris, to mechanical room to move a chiller, rollup door at recieving
- 15:00 - chiller move complete
New Violin Damping: ETMY mode 20 - needs to be monitored by OPS
- current gains for ETMY modes 12, 18, and 20, which all effect each other
- mode 12: gain = 1
- mode 18: gain = 10
- mode 20: gain = 1, the new filter, in FM7, is currently damping, the old fiter is in FM1
- if there's a need to switch, ramp the gain to zero, switch, and raise the gain
- these are updated from my alog, alog 54667
- I believe that the filtering will be reset to nominal at relocking, since those switches are called out in the Violin guardian's lscparams file, but would be advisable to make sure
- new filters in ETMY modes 1 and 6, and ITMX mode 2, none are tested