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Featured researches published by Jouni Envall.


IEEE Aerospace and Electronic Systems Magazine | 2015

ESTCube-1 in-orbit experience and lessons learned

Andris Slavinskis; Mihkel Pajusalu; Henri Kuuste; Erik Ilbis; Tõnis Eenmäe; Indrek Sünter; Kaspars Laizans; Hendrik Ehrpais; Paul Liias; Erik Kulu; Jaan Viru; Jaanus Kalde; Urmas Kvell; Johan Kütt; Karlis Zalite; Karoli Kahn; Silver Lätt; Jouni Envall; Petri Toivanen; Jouni Polkko; Pekka Janhunen; Roland Rosta; Taneli Kalvas; Riho Vendt; Viljo Allik; Mart Noorma

In this article, we report on the in-orbit experience - an overview of ESTCube-1 operations from the launch until the experiment, as well as on lessons learned from five years of development and almost two years of operations. Lessons are identified from the point of view of system engineering, electrical engineering, mechanical engineering, software engineering, testing and measurements, payload, and management. Detailed flight results of ESTCube-1 will be provided in dedicated articles. We hope that other teams can benefit from our experience.


Proceedings of the Estonian Academy of Sciences | 2014

Design and pre-flight testing of the electrical power system for the ESTCube-1 nanosatellite

Mihkel Pajusalu; Erik Ilbis; Taavi Ilves; Mihkel Veske; Jaanus Kalde; Henri Lillmaa; Ramon Rantsus; Martynas Pelakauskas; Ahto Leitu; Kaupo Voormansik; Viljo Allik; Silver Lätt; Jouni Envall; Mart Noorma


Proceedings of the Estonian Academy of Sciences | 2014

Overview of electric solar wind sail applications

Pekka Janhunen; Petri Toivanen; Jouni Envall; S. Merikallio; G Montesanti; J del Amo; Urmas Kvell; Mart Noorma; S Lätt


arXiv: Instrumentation and Methods for Astrophysics | 2014

E-sail test payload of the ESTCube-1 nanosatellite

Jouni Envall; Pekka Janhunen; Petri Toivanen; Mihkel Pajusalu; Erik Ilbis; Jaanus Kalde; Matis Averin; Henri Kuuste; Kaspars Laizans; Viljo Allik; Timo Rauhala; Henri Seppänen; Sergiy Kiprich; Jukka Ukkonen; Edward Hæggström; Taneli Kalvas; Olli Tarvainen; Janne Kauppinen; Antti Nuottajärvi; Hannu Koivisto


arXiv: Instrumentation and Methods for Astrophysics | 2014

Electric solar wind sail applications overview

Pekka Janhunen; Petri Toivanen; Jouni Envall; S. Merikallio; Jose Gonzalez del Amo; Urmas Kvell; Mart Noorma


ieee aerospace conference | 2018

Crowdfunding for satellite development: ESTCube-2 case

Katrina Kalnina; Kadri Bussov; Hendrik Ehrpais; Triin Teppo; Silvia-Kristiin Kask; Merili Jauk; Andris Slavinskis; Jouni Envall


7th European Conference on Space Debris | 2017

ESTCube-2 plasma brake payload for effective deorbiting

Iaroslav Iakubivskyi; Hendrik Ehrpais; Andris Slavinskis; Henri Kuuste; Indrek Sünter; Erik Ilbis; Ervin Oro; Johan Kütt; Pekka Janhunen; Petri Toivanen; Jouni Envall


arXiv: Instrumentation and Methods for Astrophysics | 2016

CubeSat testing of Coulomb drag propulsion

Pekka Janhunen; Jouni Envall; Petri Toivanen; Timo Rauhala; Edward Hæggström; Tor-Arne Grönland


European Planetary Science Congress - DPS Joint Meeting 2011 - La Cité Internationale des Congrès Nantes Métropole, 02 – 07 October 2011, Nantes, France | 2011

Electric Solar Wind Sail in tailwind

Pekka Janhunen; S. Merikallio; Petri Toivanen; Jouni Polkko; Edward Hæggström; Henri Seppänen; Ristp Kurppa; Jukka Ukkonen; Tuomo Ylitalo; Sergiy Kiprich; Hannu Koivisto; Taneli Kalvas; Olli Tarvainen; Janne Kauppinen; Greger Thornell; Henrik Kratz; Johan Sundqvist; Tor-Arne Grönland; Håkan Johansson; Pelle Rangsten; Emil Vinterhav; Mart Noorma; Jouni Envall; Silver Lätt; Viljo Allik; Kaupo Voormansik; Urmas Kvell; Jean-Pierre Lebreton; Martti Hallikainen; Jaan Praks


32nd International Electric Propulsion Conference | 2011

Electric Solar Wind Sail Propulsion System Development

Pekka Janhunen; Petri Toivanen; S. Merikallio; Jouni Polkko; Edward Hæggström; Henri Seppänen; Risto Kurppa; Jukka Ukkonen; Tuomo Ylitalo; Sergiy Kiprich; Hannu Koivisto; Taneli Kalvas; Olli Tarvainen; Janne Kauppinen; Greger Thornell; Henrik Kratz; Johan Sundqvist; Tor-Arne Grönland; Håkan Johansson; Pelle Rangsten; Emil Vinterhav; Mart Noorma; Jouni Envall; Silver Lätt; Viljo Allik; Kaupo Voormansik; Urmas Kvell; Jean-Pierre Lebreton; Martti Hallikainen; Jaan Praks

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Petri Toivanen

Finnish Meteorological Institute

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S. Merikallio

Finnish Meteorological Institute

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Taneli Kalvas

University of Jyväskylä

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Hannu Koivisto

University of Jyväskylä

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Henri Seppänen

Helsinki Institute of Physics

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Janne Kauppinen

University of Jyväskylä

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