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:
| Requirement | Preliminary result | |
| Longitudinal | 0.4 µm | 0.436 µm |
| Pitch | 1 µrad | 0.201 µrad |
| Yaw | 1 µrad | 0.360 µrad |
| Requirement | Preliminary result | |
| Longitudinal | 0.5 µm/s | 0.448 µm/s |
| Pitch | / | ~0.39 µrad/s |
| Yaw/ | / | ~0.31 µrad/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.
