B3 Non-refereed conference proceedings
Hyperspectral imaging of asteroids using an FPI-based sensor (2021)

Lind, L., Laamanen, H., & Pölönen, I. (2021). Hyperspectral imaging of asteroids using an FPI-based sensor. In S. R. Babu, A. Hélière, & T. Kimura (Eds.), Sensors, Systems, and Next-Generation Satellites XXV (Article 118580F). SPIE. Proceedings of SPIE : the International Society for Optical Engineering, 11858. https://doi.org/10.1117/12.2599514

JYU authors or editors

Publication details

All authors or editors: Lind, Leevi; Laamanen, Hannu; Pölönen, Ilkka

Parent publication: Sensors, Systems, and Next-Generation Satellites XXV

Parent publication editors: Babu, Sachidananda R.; Hélière, Arnaud; Kimura, Toshiyoshi

Place and date of conference: Online, 13.-24.9.2021

Journal or series: Proceedings of SPIE : the International Society for Optical Engineering

ISSN: 0277-786X

eISSN: 1996-756X

Publication year: 2021

Publication date: 12/09/2021

Number in series: 11858

Article number: 118580F

Publisher: SPIE

Publication language: English

DOI: https://doi.org/10.1117/12.2599514

Publication open access: Not open

Publication channel open access:

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/77887

Abstract

The compositions of asteroids are of interest for the planetary sciences, mining, and planetary defense. The main method for evaluating these compositions is reflectance spectroscopy. Spectroscopic measurements performed from Earth can not resolve how different materials are distributed on the asteroids, making flyby-- and rendezvous missions necessary for obtaining detailed information. Using the CubeSat platform could reduce the costs of these missions, but it also sets constraints on the payload mass and volume. One small and light instrument capable of producing spatially resolved spectral data is a hyperspectral imager based on the Fabry-Perot interferometer. We propose a method of calculating reflectance data from hyperspectral radiance images of an asteroid and a computationally evaluated incident spectral radiance. The proposed method was tested in laboratory conditions with inconclusive results. The obtained reflectances differed from reference measurements, but we believe this was caused by improper calibration of the used imager rather than errors in the method itself.

Keywords: imaging; hyperspectral imaging; asteroids; satellites (technical object)

Free keywords: hyperspectral imaging; imaging spectroscopy; asteroid; reflectance imaging; CubeSat; FPH

Contributing organizations

Related projects

Ministry reporting: Yes

Reporting Year: 2021