Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Switzerland has sent its first satellite into space

25.09.2009
The Indian launcher Polar Space Launch Vehicle took off at 8:22 a.m. - Swiss time. Twenty minutes later, the SwissCube was ejected from the nose cone of the rocket at an altitude of around 720 kilometers. At 9:37 a.m. the first ever signals sent from a Swiss satellite in space were picked up from Stanford (California). Mission accomplished.

Students and professors have been working very hard during the last three and a half years in order to send the concentrated cube of high technology into space. The SwissCube satellite is only 10 cubic centimeters in size and weighs a light 820 grams.

It is equipped with a telescope to fulfill its mission of observing airglow. Airglow is a luminescent phenomenon in the planetary atmosphere caused by cosmic rays striking the upper atmosphere and chemiluminescence caused mainly by oxygen and nitrogen reacting with hydroxyl ions at heights of a few hundred kilometers. The satellite should allow students and researchers to better understand the phenomenon, especially during day and night cycles.

But the real goal of the SwissCube project is more pedagogic that atmospheric. Almost 200 students working closely with experienced researchers from the EPFL and several other technical schools and departments have collaborated on the project. From the conception, through the design, and finally the fabrication of the Swiss spatial sparkler—these young engineers have had the unique opportunity of participating in a space project from the first brainstorming sessions to the data collection once in orbit. This educational model focuses on cross-platform collaboration from A-Z, and apart from ensuring an exceptional finished product, prepares students for the work world in a way that sets it apart from similar attempts at other technical universities that often buy a prefabricated CubeSat kit. Furthermore, keeping to a strict budget helps students learn how to deal with monetary constraints once in the work world.

A low-cost and innovative satellite

Ruag Space, the Loterie romande, and the Swiss government contributed to the majority of the project's financing with several Swiss enterprises contributing the rest. With the exception of a small involvement by the German company EADS-Astrium, the project was a wholly Swiss collaboration. In sum, the total cost of the project is 600,000 Swiss francs (400,000 Euro), including the launching; surprisingly little when compared to the high cost of most satellites, or even other student based projects.

The most difficult technical aspect is found in its extremely small size. Brutal variations of temperature (-50°C to over 70°C) as well as solar radiation and spatial vacuum subject the material to the toughest conditions. Vibrations caused by the launching do not allow for the smallest error in welding. For each component, engineers and students had to run a series of fastidious tests in order to ensure their durability.

The size and budget constraints have led to several innovations that may be used in future commercial satellites. For example, the engineers had to develop a more efficient system of copper contacts connecting the solar cells to the walls of the satellite to conduct electricity to the interior. By playing with the size, form, and spacing of these contacts, the team developed a new method which is both efficient and inexpensive.

The SwissCube mission should last between three months and one year. Traveling at over seven kilometers a second, the satellite will complete a full rotation of the earth every 99 minutes. Once or twice a day, the EPFL and the HES-SO in Fribourg, Switzerland, will receive radio transmission from the SwissCube—allowing for only 10 minutes to deliver complex information: telescope images, temperature measurements as well as scientific data about airglow. These data will be indispensable for preparing future Swiss satellites, for there will be, without a doubt, more than just one Swiss satellite orbiting the earth in the upcoming years.

Maurice Bourgeaud | EurekAlert!
Further information:
http://www.epfl.ch

More articles from Physics and Astronomy:

nachricht Breakthrough with a chain of gold atoms
17.02.2017 | Universität Konstanz

nachricht New functional principle to generate the „third harmonic“
16.02.2017 | Laser Zentrum Hannover e.V.

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: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Biocompatible 3-D tracking system has potential to improve robot-assisted surgery

17.02.2017 | Medical Engineering

Real-time MRI analysis powered by supercomputers

17.02.2017 | Medical Engineering

Antibiotic effective against drug-resistant bacteria in pediatric skin infections

17.02.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>