After rough going with H1 after the 6.3 Canada EQ from last night (I had many locklosses and issues ranging from not being able to find IR, lots of Saturations, ASC not being happy, etc.....all was logged to the best of my abilities in the Ops Survey).
IMs Restored
- Followed suggestion of restoring the IMs (since it looks like HAM ISIs were tripped causing IMs to have alignment shifts....see Niko's alog with input from Cheryl).
- Ran an alignment after IM restoration.
- Made it to NLN on first attempt with no issues!
SDF Diffs (see 1st attachment)
A few items kept me from immediately going to OBSERVING. First off were SDF Diffs:
1) Obviously we had new IM biases: I accepted these
2) SEI PROC Diffs for CPS Diff stuff from the new SEI_DIFF node: I accepted these
Then there was a "Not OK" Guardian Node for the Intent Bit related to the (once again) SEI_DIFF....
SEI_DIFF Guardian Node Prevented Observing
Since microseism has been gradually increasing since yesterday, I took SEI DIFF from the CORNER CPS state (NOMINAL State for this node) to the DOWN state while locking earlier today. Unfortunately, since DOWN isn't the NOMINAL state, this Guardian came up in the list of "NOT OK" Guardian Nodes for the Intent Bit (see 2nd attachment). I don't know how to change the NOMINAL state, so I intentionally called shenanigans, and:
- Took SEI_DIFF to CORNER_DIFF_CPS (this gave us "OK" guardians)
- Then I did the trick of turning OFF the DIFF_CONTROL_BIT which is the button on the bottom right of the OUTPUT LIMITERS medm (off of ISI_CONFIG medm).
This then gave me a new list of SDFs for the SEI PROC. I just went ahead and ACCEPTED these. (maybe we should Firstly NOT MONITOR all channels related to this new system since this will be a state which changes with weather. Secondly, we should add the SEI_DIFF guardian nodeto the "Exclude List" (TJ thought it might have already been added, but it isn't), since it's NOMINAL state will change from OFF to whatever state (i.e. CORNER_DIFF_CPS) we want when microseism is low.
