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Aalto-1 is a Finnish research nanosatellite, created by students of Aalto University. Based on the CubeSat architecture, it was originally scheduled to be launched in 2013, it was launched on 23 June 2017. It is Finland's first student satellite project and indigenously-produced satellite.[1] As of 2021, the satellite is operational.[2]

Aalto-1

Aalto-1 flight model in March 2016.
Mission type	Technology demonstration
Operator	Aalto University
COSPAR ID	2017-036L
SATCAT no.	42775
Website	wiki.aalto.fi/display/SuomiSAT/Aalto-1+nanosatellite+project
Mission duration	2 years (planned) 4 years, 11 months and 26 days (in progress)
Spacecraft properties
Spacecraft type	CubeSat
Bus	3U CubeSat
Manufacturer	Aalto University
Launch mass	4 kg (8.8 lb)
Dimensions	10 × 10 × 34 cm (3.9 × 3.9 × 13.4 in)
Power	4.8 watts
Start of mission
Launch date	23 June 2017, 03:59 UTC
Rocket	Polar Satellite Launch Vehicle (PSLV-C38)
Launch site	Satish Dhawan Space Centre, First Launch Pad (FLP)
Contractor	Indian Space Research Organisation
Entered service	24 July 2017 (first image)
Orbital parameters
Reference system	Geocentric orbit
Regime	Low Earth orbit
Perigee altitude	505 km (314 mi)
Apogee altitude	505 km (314 mi)
Inclination	97.44°
Period	90.0 minutes
Instruments
Imaging Fabry-Pérot Spectrometer Compact Radiation Monitor Electrostatic Plasma Brake
Aalto nanosatellite Series Aalto-2 →

Project history

The Aalto-1 project began in 2010 with a feasibility study, which was conducted as part of a university course on space technology.[3] The study was followed by the publication of a preliminary design in 2011.[3] A critical design review (CDR) of the satellite was conducted in 2012.[3] In all, over 80 students of Aalto University's School of Electrical Engineering were involved in the project.[4]

Design

The solar-powered CubeSat - based satellite will weigh approximately 4 kg (8.8 lb),[3] and has 3 main payloads: a miniature Fabry-Pérot spectrometer, designed by VTT Technical Research Centre,[5] a RADMON-radiation detector developed by University of Helsinki and University of Turku for the study of solar wind conditions in the Earth orbit (and to study the radiation environment in general), and an electric sail (dubbed a "brake tether"), which is designed for an atmospheric entry at the end of its 2-year operational lifespan,[6] with the intent of avoiding the creation of space junk.[3]

Launch

Originally the satellite was to be launched by a Falcon 9 launch vehicle, but the launcher suffered multiple delays due to the accidents that plagued the Falcon 9 in 2015 and 2016. The launch was removed from the Falcon 9, and Aalto-1 was launched on 23 June 2017 by PSLV-C38 launch vehicle from India.

References

External links

• Official website (in Finnish and English)
• Launch website (in Finnish and English)

На других языках

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- [en] Aalto-1

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[ru] Aalto-1

Aalto-1 — финский искусственный спутник Земли, созданный студентами университета Аалто. Аппарат был запущен 23 июня 2017 года из космического центра имени Сатиша Дхавана с помощью ракеты-носителя PSLV и служит для отработки новых технологий на базе платформы наноспутников CubeSat.

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