Reports until 23:20, Saturday 29 July 2017
H1 SUS
patrick.thomas@LIGO.ORG - posted 23:20, Saturday 29 July 2017 - last comment - 21:52, Sunday 30 July 2017(37880)
Violin mode damping filter settings before the Montana earthquake 
I used Conlog to find the violin mode damping filter settings at July 6 2017 06:00:00 UTC. According to the summary pages we were locked and in observing at that time. According to the USGS the 5.8 Montana earthquake occurred July 6 2017 06:30:17 UTC.

I have double checked the gains and degrees of freedom. It might be worth double checking the filters, as these were less straightforward to find.

ETMX
Filters, Gain, DOF
Mode 1: 505.587 +60deg 100dB, +5, P
Mode 2: 505.707 +60deg 100dB, 0, P
Mode 3: 505.707-505.710 100dB, +10, P
Mode 4: 505.805 +60deg 100dB, -89.9315, P
Mode 5: 506.922 100dB, +3, P
Mode 6: 507.159-507.194 +60deg 100dB 'N507.391,506.922', -100, P
Mode 7: 507.194New +60deg 100dB, +15, P
Mode 8: 507.391 100dB, +5, P
Mode 9: -60deg 100dB 1004.537, +1, P
Mode 10: BB1003.6-1003.9 -60deg 100dB, +3, P

ETMY
Filters, Gain, DOF
Mode 1: 100dB 1009.44-1009.49, +15, P
Mode 2: 508.010 100dB, -40, P
Mode 3: 508.146New 100dB, -20, P
Mode 4: 508.206New +60deg 100dB, -20, P
Mode 5: 508.220 +60deg 100dB, -40, P
Mode 6: 508.289N +60deg 100dB +12deg, +500, P
Mode 7: 508.585 +60deg 100dB, -60, P
Mode 8: 508.661 +60deg 100dB, -500, P
Mode 9: -60deg 100dB 1009.02, 0, P
Mode 10: 100dB +30deg5k 4735, 0, P

ITMX
Filters, Gain, DOF
Mode 1: 500.05 +60deg 100dB, +50, P
Mode 2: 500.212 100dB, +100, P
Mode 3: 501.091 -60deg 100dB, +100, P
Mode 4: 501.208 100dB, +10, P
Mode 5: 501.256 100dB, +100, P
Mode 6: 501.452 100dB, +100, P
Mode 7: 502.621 240dB, +50, P
Mode 8: 502.744 +60deg 240dB, +10, P
Mode 9: -60deg 100dB 992.43, -10, P
Mode 10: -60deg 100dB 994.277, -10, P

ITMY
Filters, Gain, DOF
Mode 1: 501.606 -60deg 100dB, +20, P
Mode 2: 501.680 -60deg 100dB, +200, P
Mode 3: 501.749 100dB, +200, P
Mode 4: 501.811 100dB N501.749, -100, P
Mode 5: 503.007 +60deg 100dB, +100, P
Mode 6: 503.12 -60deg 100dB, -20, P
Mode 7: 504.804 +60deg 100dB, +500, P
Mode 8: 504.875 -60deg 100dB, -50, P
Mode 9: -60deg 100dB 994.646, +10, P
Mode 10: -60deg 100dB 998.81, -10, P
Comments related to this report
patrick.thomas@LIGO.ORG - 21:52, Sunday 30 July 2017 (37892)SUS
Link 

It seems that the following changes in violin mode damping have occurred from the observing stretch immediately before the Montana earthquake to the current observing stretch that started July 31 2017 02:16:53 UTC:

I think the angle labeled 310 deg on G1602364-v1 should be labeled 300 deg?

I have attached screenshots of the current filter mode settings so this can be more easily double checked.

ETMX
Mode 4: -G +60 P -> +G -60 L,P,Y (240 deg P -> 300 deg L,P,Y)
Mode 7: +G +60 P -> -G 0 Y (60 deg P -> 180 deg Y)
Mode 10: -60deg -> -60deg1k

ETMY
Mode 5: -G +60 P -> +G +60 L (240 deg P -> 60 deg L)

ITMX
Mode 1: +G +60 -> +G 0 (60 deg -> 0 deg)
Mode 3: P -> L

ITMY
Mode 3: +G 0 P -> -G 0 Y (0 deg P -> 180 deg Y)
Mode 4: -G 0 -> -G +60 (180 deg -> 240 deg)
Mode 6: -G -60 -> +G +60 (120 deg -> 60 deg)
Mode 9: changed filter from 994.646 to 991.75
Mode 10: -G -60 P -> +G -60 Y (120 deg P -> 300 deg Y)
Images attached to this comment