Paper
27 August 2022 CubeSpec: optical payload design
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Abstract
CubeSpec is an ESA in-orbit-demonstration mission, based on a 6U CubeSat, targeting high-resolution astronomical spectroscopy. It is developed and funded in Belgium and scheduled for launch at the end of 2024. The CubeSpec payload consists of an off-axis Cassegrain telescope with a rectangular aperture (186x82mm2 ) and a prism cross-dispersed echelle spectrograph. The telescope aperture almost completely covers the surface area of 2 CubeSat units and the entire optical system fits in 4 units (10x20x20cm) of the spacecraft. CubeSpec delivers a spectral resolution of R=55000 and covers the wavelength range from 420 to 620 nm. Furthermore, it is equipped with a fine-guidance system based on a fast beam-steering mirror and a fine-guidance sensor that provide accurate centering of the source image on the spectrograph slit to compensate for spacecraft pointing jitter. In this contribution, we present the optical design of the CubeSpec payload.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gert Raskin, Jeroen de Maeyer, Bart Vandenbussche, Dominic Bowman, Jan Goris, Maarten Kempenaers, Jacob Pember, Pierre Royer, Job Schuermans, Andrew Tkachenko, Dirk Vandepitte, Wim De Munter, Jelle Lanting, and Hugues Sana "CubeSpec: optical payload design", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 121802Z (27 August 2022); https://doi.org/10.1117/12.2630480
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KEYWORDS
Mirrors

Telescopes

Spectrographs

Sensors

Space operations

Stars

Zerodur

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