TITLE: 04/28 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 135Mpc
QUICK SUMMARY:
LOCK #1:
- Stuck at green arms with X locked, Y struggling since 13:20UTC, adjusted ETMY & TMSY (mostly TMSY)
- Went through CHECK_MICH after AS AIR image looked terrible at DRMI, then through PRMI
- Lost lock at ENGAGE_ASC @ 16:00UTC, not sure why, LSC_PR_GAIN signal dropped right before the loss
LOCK #2:
- Had to intervene at FIND_IR and tap the DIFF_OFFSET a few times (step size of 10)
- Back to NLN @ 16:54UTC, NLN_CAL_MEAS @ 17:02UTC for a quick measurement
- Intent Observe at 17:13 UTC!
- Lockloss @ 17:20UTC, there was a SEI spike at the same time. Possibly from the traffic circle work at the rt 240 & 10 intersection
LOCK #3:
- Both arms went through increase flashes, Xarm couldn't catch, reduced power threshold from 0.9 to 0.8 in ALS_ARM.py then it caught after reloading the node
- NLN @ 18:38, observing and commissioning off and on for CAL work by Jeff, Evan, and Elenna
- In Observing 19:22UTC, out 19:28UTC
- In Observing 19:29UTC, out 19:43UTC
- In Observing 19:56UTC, out 20:04:22UTC
- In Observing 20:04:38UTC, out 20:48UTC
- In Observing 20:23UTC, out 21:48UTC
- In Observing 22:13UTC, out 22:35
- In Observing 22:36UTC
- PCALY_OFS_PD kept saturating, Jeff tried to lower the PCALY_DARM gain
LOG:
| Start Time |
System |
Name |
Location |
Lazer_Haz |
Task |
Time End |
| 19:56 |
LVEA |
LASER HAZARD |
LVEA |
YES |
THE LVEA IS LASER HAZARD |
10:54 |
| 15:54 |
|
Corey |
Ends |
N |
Parts drop off |
16:50 |
| 16:15 |
EE |
Fil |
MidY |
N |
Roll up the door |
17:15 |
| 16:37 |
FAC |
Mitch |
MidX |
N |
Put up a sign |
17:10 |
| 16:48 |
FAC |
Tyler |
Mech room |
N |
Drop off a few palets gently |
17:48 |
| 17:18 |
VAC |
Gerardo |
MidX |
N |
Hepta pump work back @ 22:00 |
19:48 |
| 18:33 |
VAC |
Janos |
Optics lab |
N |
|
19:25 |
| 21:49 |
CAL |
Elenna |
CR |
N |
HAM1 FF loop test |
22:08 |
| 22:08 |
CAL |
Elenna |
CR |
N |
Jitter noise injection |
22:11 |
| 22:22 |
VAC |
Gerardo |
MidY |
N |
Parts pickup |
Ongoing |
| 22:59 |
CAL |
Elenna |
CR |
N |
Test new HAM1 FF loop |
23:59 |
|