for the three locks since last night, h1 gets to 140Mpc and then starts to nosedive in range over the first 15-20min of lock. For the 3rd lock, this happened---basically a big noise hump in DARM would grow and grow (from 10-60Hz). I waited for the SQZ ASC to happen (it did, but I also think the squeezer lost lock---that was different from last night's lock and the lock at the beginning of the shift). So I was waiting for the SQZ to relock so I could resest the SQZ ASC, but then there was a lockloss.
Naoki suggested for the next lock, to preemptively Reset AS42 (per 71083). So I did this as soon as the Squeezer was Squeezing and all Guardians were GREEN. To get to Observing I had to ACCEPT a list of OFFSET SDF diffs (attached), and then went to OBSERVING.
But as I was typing this alog, sadly H1 lost lock after only 10min (or 4min of Observing).
Here is the output from the "Reset AS42" SQZ script:
Measuring SQZ-ASC offsets for NO SQZ
Should measure 2 groups of PDs
Group 1/2
Getting 30 second averages for
ASC-AS_A_RF42_I1_IN1 ASC-AS_A_RF42_I2_IN1 ASC-AS_A_RF42_I3_IN1
ASC-AS_A_RF42_I4_IN1 ASC-AS_A_RF42_Q1_IN1 ASC-AS_A_RF42_Q2_IN1
ASC-AS_A_RF42_Q3_IN1 ASC-AS_A_RF42_Q4_IN1 ASC-AS_B_RF42_I1_IN1
ASC-AS_B_RF42_I2_IN1 ASC-AS_B_RF42_I3_IN1 ASC-AS_B_RF42_I4_IN1
ASC-AS_B_RF42_Q1_IN1 ASC-AS_B_RF42_Q2_IN1 ASC-AS_B_RF42_Q3_IN1
ASC-AS_B_RF42_Q4_IN1
Old ASC-AS_A_RF42_I1_OFFSET = 48.252395
H1:ASC-AS_A_RF42_I1_OFFSET => 47.062751
Old ASC-AS_A_RF42_I2_OFFSET = -29.095423
H1:ASC-AS_A_RF42_I2_OFFSET => -29.656943
Old ASC-AS_A_RF42_I3_OFFSET = 49.376151
H1:ASC-AS_A_RF42_I3_OFFSET => 49.50388
Old ASC-AS_A_RF42_I4_OFFSET = 16.231802
H1:ASC-AS_A_RF42_I4_OFFSET => 16.948327
Old ASC-AS_A_RF42_Q1_OFFSET = -81.218349
H1:ASC-AS_A_RF42_Q1_OFFSET => -81.802258
Old ASC-AS_A_RF42_Q2_OFFSET = -29.347291
H1:ASC-AS_A_RF42_Q2_OFFSET => -28.219137
Old ASC-AS_A_RF42_Q3_OFFSET = -22.684637
H1:ASC-AS_A_RF42_Q3_OFFSET => -21.010318
Old ASC-AS_A_RF42_Q4_OFFSET = 2.736944
H1:ASC-AS_A_RF42_Q4_OFFSET => 3.590791
Old ASC-AS_B_RF42_I1_OFFSET = 20.348398
H1:ASC-AS_B_RF42_I1_OFFSET => 30.834787
Old ASC-AS_B_RF42_I2_OFFSET = -37.929373
H1:ASC-AS_B_RF42_I2_OFFSET => -43.953578
Old ASC-AS_B_RF42_I3_OFFSET = 17.551322
H1:ASC-AS_B_RF42_I3_OFFSET => 16.432402
Old ASC-AS_B_RF42_I4_OFFSET = 14.89816
H1:ASC-AS_B_RF42_I4_OFFSET => 21.895527
Old ASC-AS_B_RF42_Q1_OFFSET = -76.727676
H1:ASC-AS_B_RF42_Q1_OFFSET => -75.207585
Old ASC-AS_B_RF42_Q2_OFFSET = -57.735805
H1:ASC-AS_B_RF42_Q2_OFFSET => -59.515349
Old ASC-AS_B_RF42_Q3_OFFSET = -3.275448
H1:ASC-AS_B_RF42_Q3_OFFSET => -3.740753
Old ASC-AS_B_RF42_Q4_OFFSET = -40.558952
H1:ASC-AS_B_RF42_Q4_OFFSET => -39.252392
Set "NO SQZ" offsets AS_A and AS_B RF42 WFS at GPS = 1385617774.0