With the combination of fine OL diagonalization (suppressed L motion to ~ 0.5 - 0.6 µm/s) and further improving OL wind shield, I successfully made a measurement that would prove that the SR2 satisfies the lock-acquistion phase requirements (almost satisfy observation phase requirements) (in particular longitudinal rms velocity). Here are the results:
|Longitudinal||0.4 µm||0.436 µm|
|Pitch||1 µrad||0.201 µrad|
|Yaw||1 µrad||0.360 µrad|
|Longitudinal||0.5 µm/s||0.448 µm/s|
The only requirement that hasn't been met is the longitudinal residual displacement for observation phase. It is limited by the microseismic peaks at 0.2 - 0.5 Hz and an anonymous peak at 0.4 Hz.