Design of a CCD camera prototype for the Earth 2.0 Mission

Hui Wang; Hongfei Zhang; Cheng Chen; Qi Feng; Jie Zhu; Jun Zhang; Jian Wang; Hui Zhang; Yan Li; Jian Ge

doi:10.1117/12.2629172

27 August 2022 Design of a CCD camera prototype for the Earth 2.0 Mission

Hui Wang, Hongfei Zhang, Cheng Chen, Qi Feng, Jie Zhu, Jun Zhang, Jian Wang, Hui Zhang, Yan Li, Jian Ge

Proceedings Volume 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave; 121804C (2022) https://doi.org/10.1117/12.2629172
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

Earth 2.0 is a Chinese space satellite mission that uses the transit and microlensing methods to search for exoplanets, especially Earth-sized terrestrial planets, including habitable terrestrial planets around sun-like stars. The satellite will work in the halo orbit of the Sun-Earth L2 point for at least 4 years, and is expected to find about 20 Earth like planets in the 4-year observation period. In this paper a CCD camera prototype based on a 4kx4k CCD250 detector for early technology demonstration and high-accuracy photometric performance verification is introduced. The key performance indicators such as readout noise, gain, and linearity of the camera are tested, and the test results will be described.

Citation Download Citation

Hui Wang, Hongfei Zhang, Cheng Chen, Qi Feng, Jie Zhu, Jun Zhang, Jian Wang, Hui Zhang, Yan Li, and Jian Ge "Design of a CCD camera prototype for the Earth 2.0 Mission", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 121804C (27 August 2022); https://doi.org/10.1117/12.2629172

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