Dmass and Koji
Last night we engaged the MZ and the ISS paths with the analog servos.
When I went to the lab, the MZ was locking but the ISS was oscillating at around 70kHz.
We reduced the gain of the last stage by a factor of 3, the oscillation was removed.
Dmass planned a comprehensive set of the measurements and is expected to reveal it on the e-log.
These are the measurements I have planned, in order: