TITLE: 04/24 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 65Mpc
INCOMING OPERATOR: TJ
SHIFT SUMMARY:
"No good h(t)" from beginning of current lock (6:42-11:24utc); everything looks good now. Knocked down 4.2kHz line while L1 was down. H1 has been locked for 8+hrs.
LOG:
- 10:12-11:12 GRB Stand Down
- 11:32-11:41: Out of OBSERVING
- A2L run (before & after measurement looks like it got worse. Will leave as is.)
- 4.25kHz Violin Harmonic peak at 6e-17 as seen on running DARM spectra (WITH FM9 [+30deg phase] engaged). Turned OFF FM9 & after 2min turned ON FM8 (-30deg). So went from +30deg to -30deg. Peak disappeared into noise floor. ACCEPTED SDF Diff.