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Space and satellites: awareness and observations

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

Universities can contribute to economic transformation

2010-01-27

At the lecture were, from the left: Prof. Neil Heideman (Acting Dean: Faculty of Natural and Agricultural Sciences), Prof. Hartmut Frank (University of Bayreuth, Germany), Prof. Bianchi and Prof. Jan van der Westhuizen (professor in Chemistry at the UFS).
Photo: Mangaliso Radebe

Universities have a role to play in economic transformation and industrial development according to Prof. Fabrizio Bianchi, the Rector of the University of Ferrara in Italy.

This was the core message of his lecture on the topic Globalisation, Agriculture and Industrial Development that he delivered at the University of the Free State.

He said after the collapse of the agricultural industry in Italy as a result of the subsidies that the farmers were receiving from the government, the university had to step in.

“This was meant to maintain high prices and maximize the production but in the long run this approach created problems because the farmers were no longer producing high quality products but large quantities in order to receive subsidies,” he said.

“The result was that the government itself had to destroy those poor quality products. This was a completely unreasonable way to manage the economy”.

He said they had to abandon that approach and concentrate on quality because they realized that Italy could not match the prices and the quantity, in terms of production, of countries like China and the USA.

He said “knowledge and human resources” were the key factors that could get them out of that crisis; hence they came up with what he called “the Made in Italy approach”.

“We were working on the idea that food is part of culture and that it is not just simply for refueling the body,” he said.

“One of the fundamental ideas was to come back to the idea that production is the centre of the development process.”

“Quality is a very complex, collective issue,” he said. “You cannot understand development if you do not understand that you have to base it on strong roots”.

This approach resulted in the formation of several companies with specialized niche markets producing high quality products.

His visit to the UFS coincided with that of the 1991 Nobel Laureate in Chemistry, Prof. Richard Ernst from Switzerland, who was also part of the fourth presentation of the Cheese fondue concept.

The main thrust of this concept is that technical advances alone are insufficient for an agreement to be reached on the minimum respect between the various groups and individuals within a society. It proposes that for this to be achieved there has to be a concurrent development of empathy and emotional synergy.

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za
27 January 2010

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