jeffrey.bartlett@LIGO.ORG - posted 18:30, Friday 17 May 2019 - last comment - 19:07, Friday 17 May 2019(49320)
Accept SDF Diffs
Accepted the following SDF differences after relocked at NLN.
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The SR2 and RM OPTICALIGN can be unmonitored since they change every lock. The ASC-X and ASC-Y changes are permanent.
The ALS Y diode current nominal value was changed because the current of diode 2 is drifting. It would be a good idea to look at a trend if this and see if the same environmental change that impacted the PSL is having an impact on the ALS lasers.
I don’t know what the ASC input matrix change is. If those are the matrix elements for a loop which is not on (Inp2, DC5 or DC7) they don’t matter. Otherwise it’s concerning.