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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

UFS implements paperless meeting system
2004-08-20

 

The Management Committee of the University of the Free State ’s (UFS) Executive Management recently entered the electronic environment of more effective and centralised meeting and decision-making administration by implementing ‘n computerised meeting system.

With this the UFS became the first higher education institution in the world to use the PARNASSUS-meeting management system. PARNASSUS , which refers to a mountain in the Greek mythology, is a licensed system from CIPAL in Belguim – a developer of software for a variety of applications.

“In stead of coming to a weekly management meeting with a file of documentation, each member now walks in with his/her laptop and the whole meeting procedure takes place electronically,” says Prof Sakkie Steyn, Registrar: General at the UFS.

At the same time the secretary registers the minutes point by point on the PARNASSUS programme. At the end of the meeting, after certain technical finishes are done, the minutes are distributed to members of the meeting and their secretaries/office managers. The draft minutes is also distributed to those who must implement decisions and prepare implementation steps. These staff members are given security clearance beforehand.

“The system is unique due to the fact that a translation engine has been built into the agenda and minute system. Agenda items can be submitted in Afrikaans and then automatically be translated in English by means of the interactive translation engine, or vice versa. The same principle applies to the minutes,” says Prof Steyn.

According to Prof Steyn the translation engine was develop with the expert assistance of the UFS’s Unit for Language Facilitation and Empowerment (ULFE). Word strings from previous minutes are now being added to the corpus of the translation engine.

“The system enables the secretary to continuously monitor which points are submitted for the agenda and if these points comply with the set standards namely clear recommendations, background and proposed implementation steps. The agenda is closed at a certain moment and no new points can then be added. The secretary does certain technical finished by means of a final classification of point and annexures. The draft agenda is then sent to the chairperson for approval, after which the agenda is electronically sent to members of the meeting and their secretaries/office managers for preparation,” says Prof Steyn.

“After the minutes have been approved at the next meeting, it is saved on the PARNASSUS decisions data base. The tracing of decisions made during previous meetings can be done by any person with the necessary security clearance. This is different from the past where stacks of documents had to be searched to find a decision,” says Prof Steyn.

According to Prof Steyn the secretariat and meeting administration services at the UFS has now entered a fully virtual and electronic environment. This will enhance effective decision making tremendously. “The PARNASSUS system saves us costs and time and the decentralisation of submissions to meetings lessens the work at centralised points,” says Prof Steyn.

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