Spectral response of the stereo imaging channel of SIMBIO-SYS on-board the ESA BepiColombo Mission

A. Slemer; V. Da Deppo; E. Simioni; P. Chioetto; P. Zuppella; C. Re; G. Aroldi; M. Dami; D. Borrelli; I. Ficai Veltroni; L. Tommasi; M. Teresa Capria; G. Naletto; R. Mugnuolo; M. Amoroso; G. Cremonese

doi:10.1117/12.2528797

9 September 2019 Spectral response of the stereo imaging channel of SIMBIO-SYS on-board the ESA BepiColombo Mission

A. Slemer, V. Da Deppo, E. Simioni, P. Chioetto, P. Zuppella, C. Re, G. Aroldi, M. Dami, D. Borrelli, I. Ficai Veltroni, L. Tommasi, M. Teresa Capria, G. Naletto, R. Mugnuolo, M. Amoroso, G. Cremonese

Author Affiliations +

Proceedings Volume 11115, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts IX; 1111514 (2019) https://doi.org/10.1117/12.2528797
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States

Abstract

The STereoscopic imaging Channel (STC) is one of the three channels of SIMBIO-SYS instrument, whose goal is to study the Mercury surface in visible wavelength range. The SIMBIO-SYS instrument is on-board of ESA Bepicolombo spacecraft. STC is a double wide angle camera designed to map in 3D the whole Mercury surface. The detector of STC has been equipped with six filters: two panchromatic and four broad band. The panchromatic filters are centred at 700 nm with 200 nm of bandwidth, while the broad band ones have bandwidth of 20 nm and are centred at 420, 550, 750 and 920 nm, respectively. In order to verify the relative spectral response of each STC sub-channel, a spectral calibration has to be performed during the on-ground calibration campaign. The result consists in the transmissivity curve of each filter of STC as function of wavelength. The camera has been illuminated with a monochromator coupled with a diffuser and a collimator. The images have been acquired by changing the wavelength of the monochromator in the range correspondent to the filter bandwidth. The background images have been obtained by covering the light source and have been used to calculate and subtract the dark signal, fixed pattern noise (FPN) and ambient effects.

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A. Slemer, V. Da Deppo, E. Simioni, P. Chioetto, P. Zuppella, C. Re, G. Aroldi, M. Dami, D. Borrelli, I. Ficai Veltroni, L. Tommasi, M. Teresa Capria, G. Naletto, R. Mugnuolo, M. Amoroso, and G. Cremonese "Spectral response of the stereo imaging channel of SIMBIO-SYS on-board the ESA BepiColombo Mission", Proc. SPIE 11115, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts IX, 1111514 (9 September 2019); https://doi.org/10.1117/12.2528797

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