Finland’s first scientific satellite, Foresil-1, was ready for space

Finland's first scientific satellite, Foresil-1, was ready for space

While the satellite is the largest milk tank, it will take on two independent scientific devices developed by the Center of Excellence. Found: Mikko Raskinen / Aalto University

Foresil-1, the first satellite from the Finnish Center of Excellence in Research of Sustainable Space, is ready for space.

“With the help of long -term funding from the Academy of Finland, we have created the first science project in Finland, which aims to develop sustainable space technology,” said Professor Minna Palmroth from the University of Helsinki, the head of the Center. of honor.

The tour will start from Otaniemi in Espoo in a few days. The first release will be in Berlin, Germany, where the satellite will be connected to the launch adapter. Foresil-1 will be provided with its rocket selected by German broadcaster EXOLaunch. In the summer, the satellite will be launched aboard a SpaceX Falcon 9 spacecraft from the center at Cape Canaveral in Florida, US.

Satellite systems and scientific equipment have been built and built at Foresil-1 in Finland. The Center of Excellence studies astronomical conditions and uses this research to develop satellites that last longer in harsh weather conditions. It is headed by the University of Helsinki and Aalto University, the University of Turku and the Finnish Meteorological Institute. Teams from the Finnish Meteorological Institute and the University of Turku are responsible for the scientific instruments and their measurements.

The Aalto University team was responsible for mission planning and satellite construction. The company has developed a new satellite platform that opens in its facility. The satellite platform and subsystems, such as the control system, radio, computer, frame, antennas, status sensors, bags and solar panels, could be used in future Finnish satellite missions. Satellite software will be provided as an open-source program.

According to Associate Professor Jaan Praks from Aalto University, the satellite’s reliability and longevity have been significantly improved by shielding its spacecraft from space radiation more than previous smaller satellites.

“Several development models of the satellite have been built into the project, and the performance of the systems has been verified through a number of tests in conditions such as high vibration, vacuum and low temperatures. adapter, which will then be connected to the Falcon 9 rocket at the launch site in Cape Canaveral, ”Praks said.

The satellite will be maintained and operated by Otaniemi National Park, which tracks the Aalto-1 and Suomi100 satellites. The site activities are built on solutions and software developed at Aalto University.

Leading the Finnish knowledge in a solid package

While the satellite is the size of a milk tank, it will carry two independent scientific devices developed by the Center of Excellence: the PATE particle telescope, which studies the Earth’s near -Earth environment, and a plasma box, to bring the satellite out of orbit.

The plasma box was tested on the Aalto-1, but further improved performance reliability. The brake is expected to significantly reduce the amount of air debris in orbit by slowing the satellite down, so it will fall back into the air, where smoke will rise. It usually takes years for satellites to be lost and returned to space, but with plasma capture, the process can be delayed by only two months.

“The plasma tank is working on the design and our tests, but its braking force has not been measured in the air,” said Director Pekka Janhunen from the Finnish Meteorological Institute.

The goal of the PATE particle scale, developed at the University of Turku, is to help researchers better understand the radiation environment of the atmosphere and thus increase the life of satellites there.

“More accurate measurements from the PATE manufacturer will help us determine how electrons emit radiation particles into the atmosphere. With this knowledge, we can develop satellites that can withstand in space radiation and takes longer to work in space, ”says Professor. Rami Vainio from the University of Turku.


Aalto-2 no longer responds to commands


Presented by Aalto University

Directions: Finland’s first science satellite, Foresil-1, ready for space (2022, April 12) downloaded on 13 April 2022 from https://phys.org/news/2022-04-finland-science -satellite-forresail-ready.html

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