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19 November 2024 | Story Pat Lamusse | Photo Supplied
Space and satellites 2024
During the visit to the Naval Hill Planetarium, were from the left, Dr Mart-Mari Duvenhage and Prof Matie Hoffman from the UFS Department of Physics, Consul General Stephanie Bunce and Vanessa Toscano from the US Consulate, and Dinah Mangope from the Department of Physics.

A delegation from the United States (US) Consulate General in Johannesburg, including Consul General Stephanie Bunce and Public Affairs Officer, Vanessa Toscano, visited the Bloemfontein Campus of the University of the Free State (UFS). Consul General Bunce met with the acting Vice-Chancellor and Principal of the UFS, Prof Anthea Rhoda, and the Dean of the Faculty of Natural and Agricultural Sciences, Prof Paul Oberholster. The US delegation also visited the Naval Hill Planetarium.

The UFS recently received a grant from the US Embassy to fund a project to promote science education by highlighting the role of satellites in our lives. Colleagues from the Department of Physics had the opportunity to demonstrate first-hand how the planetarium technology will be used to implement the project, which poses the question – what if something happens in space that interferes with the thousands of satellites we use for communication, weather prediction, navigation, banking … surveillance?

Thanks to this grant, the UFS will explore these questions and contribute to space situational awareness (SSA) and space domain awareness (SDA). SSA involves knowledge about the orbits of spacecraft and space debris. SDA refers to the knowledge and understanding of all activities occurring within the space domain.

There are currently at least 10 000 active satellites in Earth orbit, most of which are in low Earth orbit (LEO). However, in addition to satellites, there are well over 45 000 objects larger than 10 cm in orbit, including more than 35 000 pieces of space debris, such as dead satellites, rocket bodies, and pieces from breakups and collisions. Since 1991, there have been at least six unintentional collisions between active satellites and space debris.

Space turned out to be not as big as once thought, especially not in low Earth orbit (LEO – altitude less than 2 000 km). To make things worse, there are plans to launch up to 100 000 new satellites into LEO over the next decade.

Prof Matie Hoffman from the UFS Department of Physics notes, “We live in an era when the space economy is growing fast and the number of objects in Earth orbit, including satellites and space debris, is increasing rapidly. This poses risks to operational satellites. Recent publicity around Elon Musk’s Starlink satellites has generated additional interest around this topic. It is important to raise awareness of the challenges, which will allow scientists to mitigate them.”

The project will involve expertise in optical satellite observations from the University of Michigan through Prof Patrick Seitzer, international patron of the Friends of Boyden Observatory, and the American Museum of Natural History (AMNH). The grant will fund planetarium upgrades that will enable education on space and satellites, as well as optical satellite observations from Boyden Observatory. Beneficiaries will include learners, higher education institutions (both locally and in the US), and the public. South African project partners will be the South African National Space Agency (SANSA), the Future African Space Explorers’ STEM Academy (FASESA), and satellite-related companies in South Africa.

The Boyden Observatory is ideally situated to provide valuable optical satellite observations in an area of the sky that is not accessible from existing satellite observing facilities, especially for objects in LEO. In fact, the first observation of space debris in geosynchronous orbit was from Boyden Observatory in 1967.

The project will be rolled out from the end of 2024, harnessing facilities at both Boyden Observatory and the Naval Hill Planetarium.

News Archive

Postdoc student broadens the interpretation of being productive
2013-09-16

 

Abdon Atangana
13 September 2013

Postdoc student Abdon Atangana (27) in the Institute for Groundwater Studies (IGS) brings a new dimension to the word ‘productive’. Since the beginning of this year he has published 23 articles in accredited journals. He is also guest editor in two reputed scientific journals.

Atangana – originally from Cameroon – enrolled at the UFS in 2009, finishing his BSc Honours in Applied Mathematics in one year. By the end of 2010 he could add MSc in Applied Mathematics to his CV. If this was not an accomplishment enough in itself, he passed both degrees cum laude. In 2011 he tackled his PhD in Geohydrology and submitted his final thesis in January 2013 – being the youngest PhD graduate at the Winter Graduation.

Besides his impressive publishing success, an additional 28 of his papers are currently under review by international journals in Applied Mathematics.

Atangana’s accomplishments in the publishing arena are phenomenal. He is lead guest editor for the special issue on Theory, Methods, and Applications of Fractional Calculus in The Scientific World Journal. He is also guest editor for the special issue on Analytical and Numerical Approaches for Complicated Nonlinear Equations in Abstract and Applied Analysis.Furthermore, he has been appointed on the editorial board of New Trends in Mathematical Sciences and is a reviewer for nine international accredited journals in Applied Mathematics.

This extraordinary academic has already presented papers on international conferences in America, Turkey and Thailand as well.

Atangana is truly the embodiment of the UFS’ core value of inspiring excellence.

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