Research Trip to NRC HAA

As a member of the GPI2.0 CAL2 team, Duan Li visited the NRC Herzberg Astronomy and Astrophysics Research Centre (HAA) last week. She worked with William Thompson and Christian Marois, and conducted wavefront sensing and control experiments (e.g. speckle nulling) on SPIDERS (Subaru Pathfinder Instrument for Detecting Exoplanets & Retrieving Spectra).

JOSA A paper published

“Image plane wavefront sensing and Kalman filtering for automated alignment of off-axis aspherics” by Duan Li and Dmitry Savransky has been published in the Journal of the Optical Society of America A and is available here. The paper presents an automated alignment technique on a double off-axis parabolic mirror system, with high accuracy and robustness to uncertainties.

SIOS Lab at the 73rd International Astronautical Congress

Grace Genszler presented a talk on her paper “Fuel-Optimal Formations for Telescope-Starshade Observatories in Lunar Space” and a poster on a mission design concept titled “HADES: A SmallSat Mission to Characterize Radio Foregrounds in the Lunar Environment” from Cornell’s SmallSat Mission Design School at this year’s 73rd International Astronautical Congress in Paris. She was one of 88 students from around the world sponsored by the International Space Education Board to attend the conference.