Aalto-1, multi-payload CubeSat : Design, integration and launch
Praks, J., Mughal, M. R., Vainio, R., Janhunen, P., Envall, J., Oleynik, P., Näsilä, A., Leppinen, H., Niemelä, P., Slavinskis, A., Gieseler, J., Toivanen, P., Tikka, T., Peltola, T., Bosser, A., Schwarzkopf, G., Jovanovic, N., Riwanto, B., Kestilä, A., . . . Virtanen, A. (2021). Aalto-1, multi-payload CubeSat : Design, integration and launch. Acta Astronautica, 187, 370-383. https://doi.org/10.1016/j.actaastro.2020.11.042
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The design, integration, testing and launch of the first Finnish satellite Aalto-1 is briefly presented in this paper. Aalto-1, a three-unit CubeSat, launched into Sun-synchronous polar orbit at an altitude of approximately 500 km, is operational since June 2017. It carries three experimental payloads: Aalto Spectral Imager(AaSI), Radiation Monitor (RADMON) and Electrostatic Plasma Brake (EPB). AaSI is a hyperspectral imager in visible and near-infrared (NIR) wavelength bands, RADMON is an energetic particle detector and EPB is a de-orbiting technology demonstration payload. The platform was designed to accommodate multiple payloads while ensuring sufficient data, power, radio, mechanical and electrical interfaces. The design strategy of platform and payload subsystems consists of in-house development and commercial subsystems. The CubeSat Assembly, Integration & Test (AIT) followed Flatsat-Engineering-Qualication Model (EQM)-Flight Model (FM) model philosophy for qualification and acceptance. The paper briefly describes the design approach of platform and payload subsystems, their integration and test campaigns and spacecraft launch. The paper also describes the ground segment & services that were developed by Aalto-1 team. ...
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Additional information about fundingThe RADMON team thanks P.-O. Eriksson and S. Johansson at the Accelerator Laboratory, Åbo Akademi University, for operating the cyclotron. Testing work at the University of Jyvaskyla has been supported by the Academy of Finland under the Finnish Centre of Excellence Programms 2006–2011 and 2012–2017 (Project No:s 213503 and 2513553, Nuclear and Accelerator Based Physics), and by the European Space Agency (ESA/ESTEC Contract 18197/04/NL/CP). ...
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