TITLE: 11/06 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 148Mpc
INCOMING OPERATOR: Corey
SHIFT SUMMARY: We had 3 lock losses from Close_Beam_Diverters today. The first reminded us that the issue is still present, even though we didn't have a problem getting locked last night. For the second, we tried to delay when the OMC whitening came on, thinking it was getting engaged too soon while the beam diverters were closing. The third we spaced out when the beam diverters closed, so they wouldn't close all three at once. It lost lock just after the first one closed. We then relocked and went to observing with the beam diverters open, but this ended up being a rather short, 1hr, lock. On the final attempt of this shift, we tested out moving the beam diverters and ended up moving the ISC_LOCK state that closes them to just after engaging ASC for full IFO. We have been observing since. See alog87970 for more beam diverter investigations.
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 16:03 | FAC | Nellie | Opt Lab | n | Tech clean | 16:18 |
| 16:31 | FAC | Tyler, Apex | MY | n | LIGHT earth moving for CEBEX | 22:42 |
| 17:22 | FAC | Tyler, Rays | site | n | Septic tank inspection , pump. Staging closest to IFO | 19:42 |
| 17:38 | FAC | Randy | Xarm | n | BTE sealing | 18:38 |
| 18:49 | VAC | Janos | MY | n | Look at equipment | 19:49 |
| 21:29 | IO | Rahul | Opt Lab | LOCAL | JAC optics | 22:02 |
| 21:48 | - | Corey | Opt Lab | n | Optics cleaning | 00:02 |
| 21:51 | - | Ryan S | Opt Lab | n | Optics cleaning | 00:13 |
| 22:21 | - | Richard | LVEA | n | Look at door | 22:34 |
| 23:49 | IO | Rahul | Opt Lab | n | Parts | 23:50 |