TITLE: 04/24 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: Ryan C - OWL CANCELLED
SHIFT SUMMARY:
IFO is LOCKING and in ENGAGE_DRMI_ASC
- Had an hour and 16 minutes of terrible range (125 MPc) observing time following fruitless bad alignment post-maintenance troubleshooting. Details of this troubleshooting are listed in alog 77368 and its comments.
- Naoki and Sheila tried improving the squeezing from around 4:25 - 5:25 UTC to no/poor avail.
- More work will be done tomorrow to see why H1 is in such a bad alignment.
- Jenne okayed keeping the Remote OWL off due to these issues unless "significant progress" was made - I was going to turn it on if we had stayed in observing but given the short observing time, bad range, short lock time and unstable auto-locking post lockloss, I will not be enabling the remote OWL. This is not mentioning the 21 (recorded) locklosses it took to reach this NLN Observing State
- IY Violin 6 (The very annoying one that needs 5 to damp with it) has been extremely high throughout this whole 16 hr+ lock acquisition
- Find SDF Diff Screenshots Below - there were 8 screens due to new offset settings that Jenne okayed for SDF change acceptance.
5:24 UTC - Reached NLN but waiting as SQZ team (Naoki) tries to better align squeezer
5:40 UTC - Observing
6:39 UTC - Lockloss DRMI
LOG:
Start Time |
System |
Name |
Location |
Lazer_Haz |
Task |
Time End |
00:18 |
STROLL |
Patrick |
MY |
N |
Walkin' |
01:26 |
01:26 |
PEM |
Robert |
LVEA |
N |
Ungrounding SUS Racks |
01:56 |