Group picture

The group observing the flight characteristics of a 3D-printed 67P/Churyumov-Gerasimenko model. From left to right: Markku Alho, Cyril Simon Wedlund, Esa Kallio and Sergey Dyadechkin

Professor Esa Kallio

Contact: esa.kallio(at), Office 2149, ELEC, Maarintie 8, Espoo
Esa Kallio

Working on: Planetary space plasma physics, space plasma instruments and numerical space plasma simulations

Space missions and instruments: Suomi 100 cubesat, JUICE/PEP instrument

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Research Fellow Riku Järvinen

Contact: riku.jarvinen(at), Office 2158, ELEC, Maarintie 8, Espoo

Working on: Solar wind interactions of terrestrial planets, atmospheric escape and global parallel hybrid modeling

Space missions and instruments: BepiColombo, Mars Express, MAVEN, Venus Express, Rosetta

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Publications (Finnish Meteorological Institute)

Also: Research Scientist at Finnish Meteorological Institute

Doctoral Candidate Leo Nyman

Contact: leo.nyman(at), Office 2174, ELEC, Maarintie 8, Espoo

Working on: Technologies and architectural research for space habitats. Coatings and materials for space structures. Lunar night-time survival. Folding telecommunication satellites.

Space missions and instruments: Aalto-1 Thermal Engineer

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Doctoral Candidate Olli Knuuttila

Contact: olli.knuuttila(at), Office 2174, ELEC, Maarintie 8, Espoo

Working on: Visual navigation algorithms to allow cost-efficient exploration of small solar system objects, on-orbit servicing, and space debris removal. A notable project has been to develop the visual navigation system for the APEX CubeSat that is part of the HERA mission to the binary-asteroid 65803 Didymos. Three complementary algorithms were adapted/proposed to be fused with the main navigation filter. The algorithms were 1) a standard far-range absolute navigation method based on the target brightness centroid, 2) a medium-range absolute navigation algorithm developed by me and based on synthetic photometric landmarks, and 3) a medium- to close-range relative navigation algorithm based on DT-SLAM. Current interests include the implementation of the algorithms in suitable hardware, adjusting and testing them for on-orbit servicing and space debris removal use cases, and developing a deep learning-based absolute navigation method that can successfully handle a "lost-in-space" situation. An extended interest area spans e.g. 3D-printing, image sensors, and stellar photography.

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Former group members

M.Sc. Markku Alho

Markku Alho

Working on: Hybrid model development, magnetic anomalies, visualization, energetic particles, Moon, Mars, Comets, site upkeep.

Dr. Sergey Dyadechkin

Sergey Dyadechkin

Working on: Hybrid model in spherical grid, PIC simulations, dust, Moon, Comets.

Dr. Cyril Simon Wedlund

Cyril Simon Wedlund

Cyril holds a PhD in Astrophysics from the University Joseph Fourier of Grenoble, France (2006). He is currently involved in the ESA Rosetta mission to comet 67P/C-G with emphasis on the interpretation of ion and plasma measurements from the RPC suite of instruments by use of global hybrid simulations. His interests range from the modelling of electron and proton precipitation of solar origin in the atmospheres of the Earth, Mars and Venus to the physico-chemical processes at the origin of airglow and aurora in the solar system, using space-born (Mars Express, Rosetta, Cluster, DMSP) and ground-based (EISCAT, ALIS) instrumentation. He loves photography, music, science fiction literature, aikido and archery.

Working on: Hybrid model development, Photochemistry/Ionosphere module, mass-loading, data analysis and interpretation, Comets, Mars.