TITLE: 08/11 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 147Mpc
INCOMING OPERATOR: Ibrahim
SHIFT SUMMARY:
Power supply issues as soon as I walk in.
Viewports got covered by Robert.
Fil got the 18V power supply working again, and we started to relock but got stuck in AS Shutters because a PST driver was still not yet powered because it's breaker had tripped.
Alogs: 86290 & 86296
NLN reached by 17:21:50 UTC.
Comissioners Comissioned some Scattered Light Investigations and some quasi anti-SQZin.
Observing reached by 19:47:01 UTC
Dropped from Observing due to the SQZ_MAN going to NO_Squeezin at 21:33:42 UTC for some strange reason. Mystery!
Back to Observing at 21:38:43 UTC after requesting FDS.
Mystery solved! Ryan Short found out that when a Guardian node is stalled, the unstalling node calls a revive function which returns a node to the "Last Requested State".
And since we were now in a strange state that may wake up the OWL Operator....
We resolved it By:
UnManage H1 Manager.
Manual ISC_LOCK to Inject_Squeezing
Allow SQZ_MAN to reach FDS
Then Manual ISC_LOCK back to NLN.
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 19:33 | SAF | Laser HAZARD | LVEA | YES | LVEA is Laser HAZARD | 11:33 |
| 15:04 | PEM | Robert | LVEA | Yes | Closing View ports | 17:04 |
| 15:22 | Fast Shutter | Richard | Mech room Mez | n | Rebooting the Fast Shutter | 16:18 |
| 15:29 | EE | Fil | Mech Room Mez & LVEA HAM6 | N | Working on Fast Shutter & PZT power cycle | 17:29 |
| 15:35 | FAC | Kim & Nellie | Mid X Mid Y | N | Technical Cleaning Kim out @ 16:18UTC | 16:41 |
| 17:33 | Optics | Kieta | Optics Lab | Yes | Working in the Optics lab | 17:56 |
| 19:04 | VAC | Janos | MY | n | Closing valve | 19:21 |
| 19:38 | SPI | Jeff | Optics Lab | yes | SPI inventory check | 19:44 |
| 20:50 | Tour | Mike & Tour Group | Control Room & Overpass | N | Leading a tour | 22:50 |
| 22:27 | SPI | Jeff | Optics Lab | Yes | SPI Inventory | 00:27 |
| 23:06 | ISS | Camilla | Optics lab | Yes | Working on some optics in the lab. | 23:36 |