Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Aalto-1 satellite sends first image -- the camera developed by VTT

01.08.2017

The photograph was taken with the VTT Technical Research Centre of Finland developed hyperspectral camera's secondary camera.

Launched on the morning of 23 June from India, the Aalto-1 satellite's first month in space has gone according to plan.

'We have run checks on the majority of the satellite's systems and found that the devices are fully functional,' Aalto University's Professor Jaan Praks, who is heading the satellite project, explains.


The image shows the Danish coast as well as a portion of the Norwegian coastline.

Photo: Aalto University, VTT and Aalto-1 team

'We have also downloaded the first image sent by Aalto-1, which is also the first ever image taken from a Finnish satellite. It was taken while on orbit over Norway at an altitude of about 500 kilometres. The image shows the Danish coast as well as a portion of the Norwegian coastline.

The photograph was taken by the secondary camera for the VTT-developed hyperspectral camera. The secondary camera faces the same direction as the main hyperspectral camera, but it has a slightly broader view angle to support, the analysis of the hyperspectral camera's images.

'On the basis of this first image, the system works as planned. The main hyperspectral camera will be tested later this week,' Research Scientist Antti Näsilä from VTT says.

Unlike traditional cameras, which measure three colours, the hyperspectral camera is able to measure dozens of freely selected narrow color channels. For this reason, it can be utilised for example in surveying forest types, algae and vegetation and as a tool in geological research.

The Aalto-1 satellite is also carrying a radiation monitor jointly constructed by the Universities of Helsinki and Turku and a Plasma Brake built by the Finnish Meteorological Institute. When the time comes, the brake will allow the satellite to slow down and fall into the Earth's atmosphere where it will burn to dust, ensuring that it will not be left behind as space debris.

'The plasma brake has naturally not been tested yet. However, we have used the radiation monitor to measure an area of high radiation called the South Atlantic Anomaly,' Petri Niemelä Manager of the Otaniemi base station, which is overseeing the operations of the satellite, explains.

A year of measurements

Jaan Praks emphasises that although the functionality of the technology has been demonstrated, the satellite mission itself is only in its early stages. The plan is to collect data and images over the course of several months or even an entire year. The mission schedule also includes stabilising of the satellite's attitude.

'Until now, we have allowed the satellite to slowly tumble as this is ideal with regard to spacecraft temperature management. So far, the satellite's internal temperature has remained wonderfully between zero and 25 Celsius for the duration of its mission, alternating according to whether the the satellite has been in shade or light.'

From Aalto University's and Finland's perspectives space research prospects are bright. Nanosatellites developed by numerous start-ups as well as a third Aalto satellite, i.e. the Suomi 100, are to be launched into space this year.

'Finland now has the opportunity to register its first space device in the UN's international Register of Objects Launched into Outer Space,' Mr Praks notes.

###

Upload photo: http://www.vttresearch.com/media/news/aalto-1-satellite-sends-first-image

Further information:

VTT Technical Research Centre of Finland
Antti Näsilä, Research Scientist
Tel. +358 40 671 6266
antti.nasila@vtt.fi

Jaan Praks
Professor, project director
Aalto University
Tel. +358 50 420 5847
jaan.praks@aalto.fi

Antti Kestilä
Head of the Aalto-1 mission operations
Aalto University
Tel. +358 44 238 3164
antti.kestila@aalto.fi

Petri Niemelä Head of the Otaniemi ground-station station
Aalto University
Tel. +358 50 400 4246
petri.niemela@aalto.fi

Media Contact

Antti Näsilä
antti.nasila@vtt.fi
358-406-716-266

 @VTTFinland

http://www.vtt.fi/?lang=en

Antti Näsilä | EurekAlert!

Further reports about: Aalto-1 satellite VTT early stages hyperspectral satellite space research

More articles from Physics and Astronomy:

nachricht Researchers discover link between magnetic field strength and temperature
21.08.2018 | American Institute of Physics

nachricht Smallest transistor worldwide switches current with a single atom in solid electrolyte
17.08.2018 | Karlsruher Institut für Technologie (KIT)

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: It’s All in the Mix: Jülich Researchers are Developing Fast-Charging Solid-State Batteries

There are currently great hopes for solid-state batteries. They contain no liquid parts that could leak or catch fire. For this reason, they do not require cooling and are considered to be much safer, more reliable, and longer lasting than traditional lithium-ion batteries. Jülich scientists have now introduced a new concept that allows currents up to ten times greater during charging and discharging than previously described in the literature. The improvement was achieved by a “clever” choice of materials with a focus on consistently good compatibility. All components were made from phosphate compounds, which are well matched both chemically and mechanically.

The low current is considered one of the biggest hurdles in the development of solid-state batteries. It is the reason why the batteries take a relatively long...

Im Focus: Color effects from transparent 3D-printed nanostructures

New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference

Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

LaserForum 2018 deals with 3D production of components

17.08.2018 | Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

 
Latest News

A paper battery powered by bacteria

21.08.2018 | Power and Electrical Engineering

Protein interaction helps Yersinia cause disease

21.08.2018 | Life Sciences

Biosensor allows real-time oxygen monitoring for 'organs-on-a-chip'

21.08.2018 | Medical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>