Since the situation of ground motion changed (Fig.1.) in 17th Nov. 03:00:00 (UTC) (larger microseismic motion), I divided into two period.
Quiet micro seismic motion
1. OMC DCPD oscillation with about 40 Hz (Fig.2.)
Sometimes they were detected before the lock loss, the oscillation of OMC DCPD started 30 - 40 Hz and locked loss happened.
That may be happened by the instability of the controls, but reason was unclear
#1608, #1617,
2. OMC very fast saturation (Fig.3.)
They were also detected in several times, the reason was unclear
#1609, #1610, #1611, #1612, #1613, #1615,
3. POP PDA1 RF45 I saturation (Fig.4.)
#1614, #1616, #1618
Large micro seismic motion
1. OMC DCPD oscillation with about 40 Hz (Fig.2.)
Sometimes they were detected before the lock loss, the oscillation of OMC DCPD started 30 - 40 Hz and locked loss happened.
That may be happened by the instability of the controls, but reason was unclear
#1623, #1626, #1627, #1628, #1631, #1632, #1633,
2. OMC very fast saturation (Fig.3.)
They were also detected in several times, the reason was unclear
3. POP PDA1 RF45 I saturation (Fig.4.)
#1619, #1621, #1624, #1630, #1634, #1637
4. OMC DCPD several drift (Fig.5.)
Due to the several reason, OMC DCPD drifted and then locked loss happend, similar situation with 30 Hz oscillation?
#1620, #1625, #1629, #1635, #1636,
5. Nearby earthquake (1-30 Hz ground motion)
#1622,
All logs can be found in txt file.
