Problem: Vignetting by Fold Mirror 1
Manifestation:
- WFS pupil image not fully illuminated when field-steering significantly off-axis. Reproducable behaviour regardless of position on-sky.
Solution/Recovery:
- Mirror mount(s)/support structures re-engineered during 2020--2021.
Change Log:
- 2022-07-12: Updated.
- 2020-11-25: First version.