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Virtual Observatory brings astronomy big data to all

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Big telescopes are no longer the primary aspiration for budding astronomers. Welcome to the era of big data in astronomy.

By “mining” the huge amount of astronomical data online, astronomers can now do cutting edge science without ever setting foot in an actual telescope observatory. This is not just huge for the astronomy field, but the principles developed within astronomy can be applied in just about any industry that deals with big .

The Virtual Observatory (VO) provides tools and protocols that facilitate access to online collections of astronomical data. These enable astronomers to work just as well in a small rural university, or even at home, as in an international observatory or large research university – provided they have access to the Internet and a good scientific education. It also adds value to expensive infrastructure by allowing data to be used and reused many times.

The first meeting of the International Virtual Observatory Alliance (IVOA) to take place on the African Continent is currently under way at the Stellenbosch Institute of Advanced Study (STIAS). It presents an opportunity to showcase developments surrounding astronomy in this country.

The meeting was preceded by an educator workshop on Virtual Observatory tools and applications, hosted by the South African Astronomical Observatory (SAAO) last week. Following the meeting, a workshop will be held at the University of Zululand in Kwa-Zulu Natal for university students and lecturers.

The objective of the IVOA meeting is to provide a semi-annual venue for discussion and development of virtual observatory standards and VO-based applications. It also provides a formal opportunity for face-to-face meetings of the IVOA Executive and the various working groups.

The meeting was opened by the CEO of the National Research Foundation (NRF), Dr Molapo Qhobela, who in his introductory remarks expressed his delight that South Africa is hosting the first IVOA Interoperability meeting in Africa. This meeting is attended by over 90 registered participants from different astronomy institutes and observatories across the globe.

Kevin Govender, from the International Astronomical Union (IAU) Office of Astronomy for Development (OAD), is among the plenary speakers in the education session on Friday, and will explore the role of virtual observatory tools in education and development.  Christophe Arviset (European Space Agency) is the Chair of IVOA Executive. Local organization of the meeting is by Prof Patricia Whitelock from the South African Astro-informatics Alliance (SA3) and colleagues.

The Virtual Observatory (VO) is an international astronomical community-based initiative. It aims to allow global electronic access to astronomical data archives from space and ground-based observatories. It is a collection of tools for accessing and visualizing multi-wavelength data that collectively provide a scientific environment, rather than a physical observatory.

A vast array of astronomical data-sets are already available at all wavelengths and many more are on the way. Amongst the largest will be SKA at radio wavelengths and the Large Scale Synoptic Survey Telescope at optical wavelengths. These very large databases will be archived and, through the VO, made accessible in a systematic and uniform manner to realise the full potential of the existing and future observing facilities.

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When will we stop calling them phones?

If you don’t remember when phones were only used to talk to people, you may wonder why we still use this term for handsets, writes ARTHUR GOLDSTUCK, on the eve of the 10th birthday of the app.

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Do you remember when handsets were called phones because, well, we used them to phone people?

It took 120 years from the invention of the telephone to the use of phones to send text.

Between Alexander Graham Bell coining the term “telephone” in 1876 and Finland’s two main mobile operators allowing SMS messages between consumers in 1995, only science fiction writers and movie-makers imagined instant communication evolving much beyond voice. Even when BlackBerry shook the business world with email on a phone at the end of the last century, most consumers were adamant they would stick to voice.

It’s hard to imagine today that the smartphone as we know it has been with us for less than 10 years. Apple introduced the iPhone, the world’s first mass-market touchscreen phone, in June 2007, but it is arguable that it was the advent of the app store in July the following year that changed our relationship with phones forever.

That was the moment when the revolution in our hands truly began, when it became possible for a “phone” to carry any service that had previously existed on the World Wide Web.

Today, most activity carried out by most people on their mobile devices would probably follow the order of social media in first place – Facebook, Twitter, Instagram and LinkedIn all jostling for attention – and  instant messaging in close second, thanks to WhatsApp, Messenger, SnapChat and the like. Phone calls – using voice that is – probably don’t even take third place, but play fourth or fifth fiddle to mapping and navigation, driven by Google Maps and Waze, and transport, thanks to Uber, Taxify, and other support services in South Africa like MyCiti,  Admyt and Kaching.

Despite the high cost of data, free public Wi-Fi is also seeing an explosion in use of streaming video – whether Youtube, Netflix, Showmax, or GETblack – and streaming music, particularly with the arrival of Spotify to compete with Simfy Africa.

Who has time for phone calls?

The changing of the phone guard in South Africa was officially signaled last week with the announcement of Vodacom’s annual results. Voice revenue for the 2018 financial year ending 31 March had fallen by 4.6%, to make up 40.6% of Vodacom’s revenue. Total revenue had grown by 8.1%, which meant voice seriously underperformed the group, and had fallen by 4% as a share of revenue, from 2017’s 44.6%.

The reason? Data had not only outperformed the group, increasing revenue by 12.8%, but it had also risen from 39.7% to 42.8% of group revenue,

This means that data has not only outperformed voice for the first time – as had been predicted by World Wide Worx a year ago – but it has also become Vodacom’s biggest contributor to revenue.

That scenario is being played out across all mobile network operators. In the same way, instant messaging began destroying SMS revenues as far back as five years ago – to the extent that SMS barely gets a mention in annual reports.

Data overtaking voice revenues signals the demise of voice as the main service and key selling point of mobile network operators. It also points to mobile phones – let’s call them handsets – shifting their primary focus. Voice quality will remain important, but now more a subset of audio quality rather than of connectivity. Sound quality will become a major differentiator as these devices become primary platforms for movies and music.

Contact management, privacy and security will become critical features as the handset becomes the storage device for one’s entire personal life.

Integration with accessories like smartwatches and activity monitors, earphones and earbuds, virtual home assistants and virtual car assistants, will become central to the functionality of these devices. Why? Because the handsets will control everything else? Hardly.

More likely, these gadgets will become an extension of who we are, what we do and where we are. As a result, they must be context aware, and also context compatible. This means they must hand over appropriate functions to appropriate devices at the appropriate time. 

I need to communicate only using my earpiece? The handset must make it so. I have to use gesture control, and therefore some kind of sensor placed on my glasses, collar or wrist? The handset must instantly surrender its centrality.

There are numerous other scenarios and technology examples, many out of the pages of science fiction, that point to the changing role of the “phone”. The one thing that’s obvious is that it will be silly to call it a phone for much longer.

  • Arthur Goldstuck is founder of World Wide Worx and editor-in-chief of Gadget.co.za. Follow him on Twitter on @art2gee and on YouTube
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MTN 5G test gets 520Mbps

MTN and Huawei have launched Africa’s first 5G field trial with an end-to-end Huawei 5G solution.

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The field trial demonstrated a 5G Fixed-Wireless Access (FWA) use case with Huawei’s 5G 28GHz mmWave Customer Premises Equipment (CPE) in a real-world environment in Hatfield Pretoria, South Africa. Speeds of 520Mbps downlink and 77Mbps uplink were attained throughout respectively.

“These 5G trials provide us with an opportunity to future proof our network and prepare it for the evolution of these new generation networks. We have gleaned invaluable insights about the modifications that we need to do on our core, radio and transmission network from these pilots. It is important to note that the transition to 5G is not just a flick of a switch, but it’s a roadmap that requires technical modifications and network architecture changes to ensure that we meet the standards that this technology requires. We are pleased that we are laying the groundwork that will lead to the full realisation of the boundless opportunities that are inherent in the digital world.” says Babak Fouladi, Group Chief Technology & Information Systems Officer, at MTN Group.

Giovanni Chiarelli, Chief Technology and Information Officer for MTN SA said: “Next generation services such as virtual and augmented reality, ultra-high definition video streaming, and cloud gaming require massive capacity and higher user data rates. The use of millimeter-wave spectrum bands is one of the key 5G enabling technologies to deliver the required capacity and massive data rates required for 5G’s Enhanced Mobile Broadband use cases. MTN and Huawei’s joint field trial of the first 5G mmWave Fixed-Wireless Access solution in Africa will also pave the way for a fixed-wireless access solution that is capable of replacing conventional fixed access technologies, such as fibre.”

“Huawei is continuing to invest heavily in innovative 5G technologies”, said Edward Deng, President of Wireless Network Product Line of Huawei. “5G mmWave technology can achieve unprecedented fiber-like speed for mobile broadband access. This trial has shown the capabilities of 5G technology to deliver exceptional user experience for Enhanced Mobile Broadband applications. With customer-centric innovation in mind, Huawei will continue to partner with MTN to deliver best-in-class advanced wireless solutions.”

“We are excited about the potential the technology will bring as well as the potential advancements we will see in the fields of medicine, entertainment and education. MTN has been investing heavily to further improve our network, with the recent “Best in Test” and MyBroadband best network recognition affirming this. With our focus on providing the South Africans with the best customer experience, speedy allocation of spectrum can help bring more of these technologies to our customers,” says Giovanni.

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