TITLE: 05/14 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Wind
SHIFT SUMMARY:
Locks:

The first lockloss was at 18:26 following a 16:22 hour lock with observing until 15:35 UTC.

Locklosses at: 22:12, 22:04, 21:59, 21:53, 21:50, 21:36, 21:32, 21:25, 21:12,21:09, 21:03, 19:36, 19:28, 19:21, 18:51 (all UTC) all assumed due to the same issue. Troubleshooting the issue is described below.

Manual Touching:

• BS P
• SRM P/Y
• SR2 (to align SRM)
• ALS P/Y X/Y

Troubleshooting:

1. Failed initial alignment: there was a failed initial alignment (assumed) due to an ALS X issue. The issue is tricky to trend due to Beckhoff error trending problems (I am told) - but the ALS X guardian was bouncing to fault every so often and unable to offload to get past initial alignment - this seems to be fixed by an IX alignment during the last initial alignment.
2. SRM misalignment (see below).
3. OM misalignment: This was TJs suggestion since we had issues trending DRMI. Trending the OMs and checking the OSEM values - it seems that this is not the issue.
4. Wind: Wind speeds are showing as 20-40 MPH for the entirety of the locking difficulty sometimes flashing yellow above the nominal (green) indicator - this is from the PEM weather overview
5. SR3 was moved (back) yesterday due to it being moved the day before because of temp excursions. Since IFO was stuck at the same spot, this was the initial assumption for the issue but upon trending the same channels, we found it was not and that the OPLEVs were in the right spot. (it was not touched either).

SRM Misalignment:

The problem is that the SRC1 Pitch was heavily misaligned (either due to the failed initial alignment or prior). Upon using the usual troubleshooting page, the "misaligned?" checker showed that nothing was super misaligned since the last 24 hrs. However, when we trended the SRM P/Y channels, we saw that the SRC1 P/Y were not converging at all and was heavily misaligned. Figuring that this was an issue with the failed initial alignment, we tried another initial alignment. This time, guardian got stuck at align SRC so we took it into our own hands and did a manual SRC alignment per the initial alignment checklist. We had to move SRM by a lot (see screenshot) due to it being kicked badly right after the failed initial alignment (one could only assume this is what caused it to terribly misalign though this is unknown). After this was tackled, initial alignment went fine and then we went onto normal locking. Now we are losing lock at ALS every single time due to what can only be assumed to be the wind or an actual fault/issue with ALSX (ALSY is fine and catches great every time). On the rare occasion that ALS offloads, we lose lock for no apparent reason when IR is found just as we are "supposed" to go continue (either at Check MICH or at DRMI 1F). SRM was badly railed and not converging properly. Now that it has been realigned, in theory everything should work when the wind dies down. Overall, might just be a natural issue (wind) messing with a very bad (now fixed) alignment issue. Since I'm operating tomorrow, I'll see if this is the case (given low wind).

Other:

Called TJ - helped troubleshooting.

Got Called by Sheila who also helped with troubleshooting and suggesting going to down (along with Jenne later) until the wind dies down.

Huge thank you to Elenna who came in and continued troubleshooting with me. She also informed/taught me which confusions were valid and which were NOS (new operator syndrome). This was all on her own time during the weekend after giving a tour - thanks!

LOG: