Miniature spectral imager in-orbit demonstration results from Aalto-1 nanosatellite mission

Jaan Praks*, Petri Niemela, Antti Näsilä, Antti Kestila, Nemanja Jovanovic, Bagus Riwanto, Tuomas Tikka, Hannu Leppinen, Rami Vainio, Pekka Janhunen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

9 Citations (Scopus)


This paper provides a summary of Finnish Aalto-1 CubeSat mission results so far, and concentrates especially on the results achieved with it's miniature hyperspectral camera for Earth Observation. The Aalto-1 satellite is a multipayload nanosatellite with total mass of 4 kg. It features three different scientific payloads, all built for in-orbit technology demonstration. The main payload of the mission is a tiny hyperspactral camera AaSI, especially built for CubeSat satellite. The spectral camera is based on Fabry-Perot interferometric spectral filter technology and it is capable to measure freely adjustable spectral channels. The mass of the camera is only 592 grams. Additionally, the satellite features a deorbiting experiment and a radiation monitor instrument. The satellite platform has three-axis stabilization, two channel communication system and powerful on-board computer. The Aalto-1 satellite was launched on 23 June 2017 and the first image with the AaSI camera was acquired on 5 July 2017. By May 2018 the satellite has taken several images and spectral images and achieved the most important mission goals. The Aalto-1 mission results demonstrated for the first time in-orbit that a miniature Fabry-Perot spectral camera for Earth Observation can be successfully operated in space.

Original languageEnglish
Title of host publication IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium
Number of pages4
ISBN (Electronic)978-1-5386-7150-4
ISBN (Print)978-1-5386-7151-1
Publication statusPublished - 2018
MoE publication typeA4 Article in a conference publication
EventInternational Geoscience and Remote Sensing Symposium - Valencia, Spain
Duration: 22 Jul 201827 Jul 2018
Conference number: 38

Publication series

NameIEEE International Symposium on Geoscience and Remote Sensing IGARSS
ISSN (Print)2153-6996
ISSN (Electronic)2153-7003


ConferenceInternational Geoscience and Remote Sensing Symposium
Abbreviated titleIGARSS
Internet address


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