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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

Research project gives insight into the world of the deaf

2005-11-30

Mr Akach in conversation (using sign language) with his assistant Ms Emily Matabane. Photo: Lacea Loader

UFS research project gives insight into the world of the deaf

The Sign Language Division of the University of the Free State’s (UFS) Department of Afro-Asiatic Studies and Language Practice and Sign Language has signed a bilateral research project with the universities of Ghent and Brussels to write a book on sign language.

“We want to compare the Belgium and South African sign languages with each other. The book will be about the deaf telling us about themselves and how they live. It will also focus on the use of story telling techniques and the grammar used by deaf people. We want to see if the hand forms and the grammatical markers and other linguistic features that deaf people from these two countries use are the same or not,” said Mr Philemon Akach, lecturer at the UFS Sign Language Division and coordinator of the research.

According to Mr Akach, the sign language community in South Africa, with about 600 000 deaf people who use South African Sign Language (SASL) as first language, is quite big. “Over and above the deaf people in South Africa, there are also the non-deaf who use SASL, like the children of deaf parents etc. This book can therefore be used to teach people about the deaf culture,” he added.

Another of Mr Akach’s achievements is his election as Vice-President of the newly established World Association of Sign Language Interpreters (WASLI). The association was established earlier this month during a conference in Worcester.

Mr Akach has been actively involved with sign language interpretation since 1986 and has been interpreting at the World Congress of the World Federation of the Deaf (WFD) since 1987. “My appointment as Vice-President of the WASLI is an emotional one. I have been involved with deaf people for so long and have been trying to create awareness and obtain recognition for sign language, especially in Africa,” said Mr Akach. WASLI is affiliated to the WFD.

According to Mr Akach there was no formal structure in the world to support sign language and sign language interpreters. “Now we have the backup of WASLI and we can convince governments in other African countries and across the world to support deaf people by supporting WASLI and therefore narrow the communication gap between the deaf and the hearing. My main aim as Vice-President is to endeavour for the recognition of sign language and spoken language interpreters as a profession by governments,” he said.

According to Mr Akach the formal training of interpreters is of vital importance. “Anybody who has a deaf person in his/her family and can communicate in sign language can claim that they are an interpreter. This is not true. It is tantamount to think that all mother tongue or first language speakers are interpreters. Likewise students who learn sign language up to whatever level and are fluent in signing, should still join an interpreter’s programme,” he said.

“Sign language interpreting is a profession and should be presented as an academic course alongside other spoken languages. The UFS has been taking the lead with sign language and spoken language interpretation and was the first university on the African continent to introduce sign language as an academic course,” he said.

“Although sign language has always been an unknown language to young people it has become quite popular in recent years. This year we had a total of 160 students at the Sign Language Section of the UFS and the numbers seem to increase steadily every year,” he said.

Mr Akach’s assistant, Ms Emily Matabane, is deaf and they communicate in sign language. Ms Matabane also handles the tutorials with students to give them hands-on experience on how to use sign language.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
30 November 2005

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