TITLE: 05/20 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 130Mpc
SHIFT SUMMARY:
Locking:
- H1 was relocking itself at start of shift; NLN reached @ 15:40 and Observing @ 16:00
- During this lock, Robert was changing the air handler fan speed at EY
- Lockloss @ 20:20, DCPD saturation. Cause not obvious, but it does look similar to the lockloss early this morning in that the only indicator is a DCPD saturation and nothing else jumps out
- Reacquiring was relatively simple. CHECK_MICH_FRINGES was needed for PRMI locking; NLN reached @ 22:00 and Observing @ 22:23
Other:
- The control room has been noticably warm today compared to other areas of the OSB. Robert confirmed that the appropriate supply fan is running (further evidenced by other rooms being much cooler), but thermostats show the control room temperature at 76 degF (5 degF above their setpoint)
- Throughout the day, the top monitor of nuc30 has been turning off for about 30 seconds before coming back on, now having both monitors mirrored (this problem first noted by Austin last night). This was happening every 10-20 minutes; I could temporarily fix it by logging into the nuc and un-mirroring the displays. Restarting the nuc did not fix the issue (tagging CDS)
- While I was checking on some temperatures around site, I noticed both racks in the MSR are on the rise, especially rack 1 (trend attached). Maybe this is fine, but I thought it was worth noting
LOG:
| Start Time |
System |
Name |
Location |
Lazer_Haz |
Task |
Time End |
| 17:12 |
PEM |
Robert |
EY |
- |
Changing EY AHU speeds |
19:12 |