Publications (4)
Optical alignment of contamination-sensitive Far-Ultraviolet spectrographs for Aspera SmallSat mission
Aafaque R. Khan, Erika Hamden, Haeun Chung +48
Aspera is a NASA Astrophysics Pioneers SmallSat mission designed to study diffuse OVI emission from the warm-hot phase gas in the halos of nearby galaxies. Its payload consists of…
Tiny Observatory for Telescope Optimization (TOTO): testing algorithms for autonomous on-orbit alignment for space-based telescope systems
Solvay A. Blomquist, Sanchit Sabhlok, Hyukmo Kang +11
The paper describes the Tiny Observatory for Telescope Optimization (TOTO), an optical testbed used to evaluate autonomous alignment algorithms—Stochastic Parallel Gradient Descent…
Testing of machine learning wavefront sensing algorithms on the Tiny Observatory for Telescope Optimization (TOTO) testbed
Sanchit Sabhlok, Solvay A. Blomquist, Maggie Y +16
The paper evaluates a machine‑learning based wavefront sensing algorithm on the Tiny Observatory for Telescope Optimization (TOTO) testbed, comparing its low‑order Zernike coeffici…
FIREBall-2: flight preparation of a proven balloon payload to image the intermediate redshift circumgalactic medium
Vincent Picouet, David Valls-Gabaud, Bruno Milliard +19
FIREBall-2 is a stratospheric balloon-borne 1-m telescope coupled to a UV multi-object slit spectrograph designed to map the faint UV emission surrounding z~0.7 galaxies and quasar…