Aalto-1, multi-payload CubeSat: In-orbit results and lessons learned

TL;DR

This paper presents the in-orbit performance, challenges, and lessons learned from the Finnish CubeSat Aalto-1, highlighting its partial success in spectral imaging, radiation monitoring, and plasma braking experiments despite attitude control issues.

Contribution

It provides new insights into the operational experiences and technical challenges of a multi-payload CubeSat in orbit, including lessons for future small satellite missions.

Findings

AaSI and RADMON acquired valuable measurements despite attitude issues.

EPB was successfully commissioned but tether deployment failed.

The satellite partly fulfilled its mission objectives.

Abstract

The in-orbit results and lessons learned of the first Finnish satellite Aalto-1 are briefly presented in this paper. Aalto-1, a three-unit CubeSat which was launched in June 2017, performed AaSI (Aalto Spectral Imager), Radiation Monitor (RADMON), and Electrostatic Plasma Brake (EPB) missions. The satellite partly fulfilled its mission objectives and allowed to either perform or attempt the experiments. Although attitude control was partially functional, AaSI and RADMON were able to acquire valuable measurements. EPB was successfully commissioned but the tether deployment was not successful.