TITLE: 10/17 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Commissioning
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 20mph Gusts, 13mph 3min avg
Primary useism: 0.05 μm/s
Secondary useism: 0.23 μm/s
QUICK SUMMARY:
Lockloss from SQZrs PSAM activity.
https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1413215714
Relocking notes:
I had IMC Locking issues before entering into Initial_Alignment.
And then I had IMC Locking Issues in SR2 Alignment as well making Initial_Alignment incredibly difficult to Get into and Complete.
Sheila asked me to just take the IMC to Offline and wait until the PSL glitches stopped so we waited abotu 20 minutes.
Took ISC_LOCK back to down and started a Manual Initial_Alignment @ SR2 Align.
Reached Nominal Low Noise at 18:51 UTC
Commissioning activities started with:
- Josh's Osem injections Josh [Elenna requests start with PR3]
- 10 minutes CPS diff off in low noise [Jim]
- Noise propagation injections [Elenna]: Jitter and intensity injections with carm on one sensor [30 minutes, including retuning jitter injection to reach high frequencies]
- Contrast defect Elenna [20 minutes]
- 1 hour step PSAMs with ASC on [Vicky, Camilla]
- Check filter cavity detuning
- HAM1 injections [20 minutes] Sheila, Jim
- Injections for Brice:
- 3 different frequency lines into DARM
- Lines into LSC channels: DARM, SRCL and MICH (all at same sampling rate)
- Lines into DARM and two others at a different sampling rate: CHARD and DHARD
- Lines into 3 non-DARM channels (same sampling rate)
- Lines into 3 non-DARM channels (all different sampling rates)
