The Asteroid Spectral Imager (ASPECT) on the Milani CubeSat

Antti Näsilä; Tomáš Kohout; Maddalena Boselli; Janne Kuhno; Roberts Trops; Christer Holmlund; Rami Mannila; Harri Ojanen; Tahvo Havia; Hans Toivanen; Altti Akujärvi; Leevi Salonen; Timo Ihatsu; Antti Penttilä; Tomáš Kašpárek; Tuomas Tikka; Gábor Kovács; Balázs V. Nagy; David Korda; Margherita Cardi; Marco Pavoni; Daniele Calvi; Andrea Zanotti; Filippo Corradino; Hannah Goldberg; Michael Kueppers; Mario F. Palos

doi:10.1007/s11214-025-01193-3

The Asteroid Spectral Imager (ASPECT) on the Milani CubeSat

Antti Näsilä^*, Tomáš Kohout, Maddalena Boselli, Janne Kuhno, Roberts Trops, Christer Holmlund, Rami Mannila, Harri Ojanen, Tahvo Havia, Hans Toivanen, Altti Akujärvi, Leevi Salonen, Timo Ihatsu, Antti Penttilä, Tomáš Kašpárek, Tuomas Tikka, Gábor Kovács, Balázs V. Nagy, David Korda, Margherita CardiMarco Pavoni, Daniele Calvi, Andrea Zanotti, Filippo Corradino, Hannah Goldberg, Michael Kueppers, Mario F. Palos

^*Corresponding author for this work

BA6312 Microspectrometers

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Abstract

Flying on board the Milani CubeSat, The Asteroid Spectral Imager ASPECT is a hyperspectral camera which will measure the spectral characteristics of the Didymos asteroids. This paper describes science objectives of the mission, the operational principle of the camera and primary results of the test campaign. The ASPECT camera operates mainly in the near infrared wavelengths, covering the wavelength range of 650–1600 nm. In addition to the camera, there is a single point spectrometer covering the range of 1650–2500 nm. The instrument was qualified to the Hera environmental specification and the optical properties were cross-calibrated with other optical payloads on the Hera mission.

Original language	English
Article number	86
Journal	Space Science Reviews
Volume	221
Issue number	7
DOIs	https://doi.org/10.1007/s11214-025-01193-3
Publication status	Published - Oct 2025
MoE publication type	A1 Journal article-refereed

Funding

The ASPECT instrument was built under ESA contract 0111232456/51/NL/GLC-S-VTT (supported by other smaller ESA contracts), Academy of Finland project No. 335595, and within institutional support RVO 67985831 of the Institute of Geology of the Czech Academy of Sciences, the Czech-German common grant, funded by the Czech Science Foundation under the project 23 07633K and by the Deutsche Forschungsgemeinschaft under the project BE 5771/3-1 (eBer-23 13412).

Keywords

Asteroid
Hera
Hyperspectral
Milani

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Näsilä, A., Kohout, T., Boselli, M., Kuhno, J., Trops, R., Holmlund, C., Mannila, R., Ojanen, H., Havia, T., Toivanen, H., Akujärvi, A., Salonen, L., Ihatsu, T., Penttilä, A., Kašpárek, T., Tikka, T., Kovács, G., Nagy, B. V., Korda, D., ... Palos, M. F. (2025). The Asteroid Spectral Imager (ASPECT) on the Milani CubeSat. Space Science Reviews, 221(7), Article 86. https://doi.org/10.1007/s11214-025-01193-3

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title = "The Asteroid Spectral Imager (ASPECT) on the Milani CubeSat",

abstract = "Flying on board the Milani CubeSat, The Asteroid Spectral Imager ASPECT is a hyperspectral camera which will measure the spectral characteristics of the Didymos asteroids. This paper describes science objectives of the mission, the operational principle of the camera and primary results of the test campaign. The ASPECT camera operates mainly in the near infrared wavelengths, covering the wavelength range of 650–1600 nm. In addition to the camera, there is a single point spectrometer covering the range of 1650–2500 nm. The instrument was qualified to the Hera environmental specification and the optical properties were cross-calibrated with other optical payloads on the Hera mission.",

keywords = "Asteroid, Hera, Hyperspectral, Milani",

author = "Antti N{\"a}sil{\"a} and Tom{\'a}{\v s} Kohout and Maddalena Boselli and Janne Kuhno and Roberts Trops and Christer Holmlund and Rami Mannila and Harri Ojanen and Tahvo Havia and Hans Toivanen and Altti Akuj{\"a}rvi and Leevi Salonen and Timo Ihatsu and Antti Penttil{\"a} and Tom{\'a}{\v s} Ka{\v s}p{\'a}rek and Tuomas Tikka and G{\'a}bor Kov{\'a}cs and Nagy, \{Bal{\'a}zs V.\} and David Korda and Margherita Cardi and Marco Pavoni and Daniele Calvi and Andrea Zanotti and Filippo Corradino and Hannah Goldberg and Michael Kueppers and Palos, \{Mario F.\}",

year = "2025",

month = oct,

doi = "10.1007/s11214-025-01193-3",

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Näsilä, A, Kohout, T, Boselli, M, Kuhno, J, Trops, R, Holmlund, C , Mannila, R , Ojanen, H, Havia, T, Toivanen, H, Akujärvi, A , Salonen, L, Ihatsu, T, Penttilä, A, Kašpárek, T, Tikka, T, Kovács, G, Nagy, BV, Korda, D, Cardi, M, Pavoni, M, Calvi, D, Zanotti, A, Corradino, F, Goldberg, H, Kueppers, M & Palos, MF 2025, 'The Asteroid Spectral Imager (ASPECT) on the Milani CubeSat', Space Science Reviews, vol. 221, no. 7, 86. https://doi.org/10.1007/s11214-025-01193-3

TY - JOUR

T1 - The Asteroid Spectral Imager (ASPECT) on the Milani CubeSat

AU - Näsilä, Antti

AU - Kohout, Tomáš

AU - Boselli, Maddalena

AU - Kuhno, Janne

AU - Trops, Roberts

AU - Holmlund, Christer

AU - Mannila, Rami

AU - Ojanen, Harri

AU - Havia, Tahvo

AU - Toivanen, Hans

AU - Akujärvi, Altti

AU - Salonen, Leevi

AU - Ihatsu, Timo

AU - Penttilä, Antti

AU - Kašpárek, Tomáš

AU - Tikka, Tuomas

AU - Kovács, Gábor

AU - Nagy, Balázs V.

AU - Korda, David

AU - Cardi, Margherita

AU - Pavoni, Marco

AU - Calvi, Daniele

AU - Zanotti, Andrea

AU - Corradino, Filippo

AU - Goldberg, Hannah

AU - Kueppers, Michael

AU - Palos, Mario F.

PY - 2025/10

Y1 - 2025/10

N2 - Flying on board the Milani CubeSat, The Asteroid Spectral Imager ASPECT is a hyperspectral camera which will measure the spectral characteristics of the Didymos asteroids. This paper describes science objectives of the mission, the operational principle of the camera and primary results of the test campaign. The ASPECT camera operates mainly in the near infrared wavelengths, covering the wavelength range of 650–1600 nm. In addition to the camera, there is a single point spectrometer covering the range of 1650–2500 nm. The instrument was qualified to the Hera environmental specification and the optical properties were cross-calibrated with other optical payloads on the Hera mission.

AB - Flying on board the Milani CubeSat, The Asteroid Spectral Imager ASPECT is a hyperspectral camera which will measure the spectral characteristics of the Didymos asteroids. This paper describes science objectives of the mission, the operational principle of the camera and primary results of the test campaign. The ASPECT camera operates mainly in the near infrared wavelengths, covering the wavelength range of 650–1600 nm. In addition to the camera, there is a single point spectrometer covering the range of 1650–2500 nm. The instrument was qualified to the Hera environmental specification and the optical properties were cross-calibrated with other optical payloads on the Hera mission.

KW - Asteroid

KW - Hera

KW - Hyperspectral

KW - Milani

UR - https://www.scopus.com/pages/publications/105016740498

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DO - 10.1007/s11214-025-01193-3

M3 - Article

AN - SCOPUS:105016740498

SN - 0038-6308

VL - 221

JO - Space Science Reviews

JF - Space Science Reviews

IS - 7

M1 - 86

ER -

The Asteroid Spectral Imager (ASPECT) on the Milani CubeSat

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