http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 14.20Change: 0.11
R/$ = 11.08Change: 0.00
Au 1216.40 $/ozChange: -0.63
Pt 1339.00 $/ozChange: 4.00
 
 
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?








Start
 
End
 
 
And must exclude these words...
Close Main Search
Close Main Login
My Profile News Alerts Newsletters Logout Close Main Profile
 
Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science and Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Tenders Suppliers Directory Research Jobs Announcements Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Jul 10, 2009

Another radio telescope being established in SA

Back
Engineering|Oxford|Africa|Education|Jet Propulsion Laboratory|Jodrell Bank|PROJECT|SKA South Africa|System|Systems|Telkom|Africa|South Africa|Hartebeesthoek Radio Astronomy Observatory|Owens Valley Observatory|Control Systems|Electronics|Satellite Tracking Dishes|Systems|Telecommunications Giant|Sky|Northern Cape|Owens Valley|Charles Copley|Justin Jonas|Oliver King|Power|California|Radio Astronomy Observatory|Microwave
Engineering||Africa|Education|PROJECT|System|Systems||Africa|||Systems||||Power|||
engineering|oxford|africa-company|education-company|jet-propulsion-laboratory|jodrell-bank|project|ska-south-africa|system|systems-company|telkom|africa|south-africa|hartebeesthoek-radio-astronomy-observatory|owens-valley-observatory|control-systems|electronics|satellite-tracking-dishes|systems|telecommunications-giant|sky-music-group|northern-cape|owens-valley|charles-copley|justin-jonas|oliver-king|power|california|radio-astronomy-observatory|microwave
© Reuse this



The South African dish of the interna- tional C-Band All Sky Survey (C-Bass) radio astronomy project has now been erected in the Karoo at Klerefontein, near Carnarvon, in the Northern Cape province. South African telecommunications giant Telkom effectively donated two 7,6-m-diameter dishes for the local component of C-Bass, to promote science and education in this country.

“They were satellite tracking dishes and their control systems have had to be modified to make them suitable for use as radio telescopes. “The first dish is at the Hartebeesthoek Radio Astronomy Observatory (HartRAO), where it is being used to develop control systems. “It is much more convenient to do this prototyping at HartRAO, because it has the necessary workshops and technicians,” explains Square Kilometre Array (SKA) South Africa associate director: science and engineering Professor Justin Jonas. “Eventually, this dish will be used for outreach programmes.”

The second dish is the one that has been set up at Klerefontein and this will be the operational dish. Technical staff from HartRAO gave extensive assistance in the establishment of this dish at its Karoo site.The Klerefontein dish will become opera- tional when it is fitted with its receiver and its recording system.

The receiver is being developed by Oxford University, with support from the University of Manchester (the latter is a world-renowned centre for radio astronomy, operating the famous Jodrell Bank observatory). One of those involved in developing the receiver is a South African, Oliver King, who is an MSc graduate of Rhodes University (a former student of Jonas) and now doing a PhD at Oxford. The recording electronics are being developed by the California Institute of Technology (Caltech). The receiving and recording systems will first be installed on the California dish of C-Bass, and debugged there. “The South African dish should be fully operational by the middle of next year,” reports Jonas.

C-Bass comprises two radio telescopes, one each in the southern and northern hemispheres. Klerefontein is the southern hemisphere dish; the northern hemisphere dish is at the Owens Valley observatory, in California.

The dish for the California telescope was also, effectively, donated to the project, this time by the world-renowned Jet Propulsion Laboratory (JPL) – this dish is a different design to the South African ones. Founded by Caltech in the 1930s, the JPL is today managed by Caltech on behalf of the US National Aeronautics and Space Administration (Nasa). JPL’s main mission is to build and operate Nasa’s robotic planetary and interplanetary space probes.

The South African element of C-Bass is managed by another Rhodes MSc graduate, Charles Copley, and falls under SKA South Africa, as does South Africa’s MeerKAT radio telescope array project. Indeed, Klerefontein is the support base for MeerKAT, and the MeerKAT infra- structure team used their recently acquired mobile cranes to set up the C-Bass dish. SKA South Africa is a business unit of the National Research Foundation, which, in turn, is an agency of the Department of Science and Technology.

Overshadowed by MeerKAT and by the giant international SKA project, C-Bass is still an important programme. It seeks to create a precise map of the galaxy in the C-band of the electromagnetic spectrum. The C-band lies in the microwave section of the spectrum, spanning wavelengths from 3,75 cm to 7,5 cm and frequencies from 8 GHz to 4 GHz (the shorter the wavelength, the higher the frequency). C-Bass will measure the total power and linear polarisation (that is, are the radio waves vertical or horizontal relative to the receiver?) of the C-band radiation reaching earth.

This work will also support the analysis of data from the European Space Agency’s Planck space telescope, which was launched on May 14.
Planck will measure, with unpreceden- ted precision, minute fluctuations in the cosmic microwave background (CMB) radiation. The CMB was generated by the Big Bang that created our universe and is, so to speak, a faint echo of that event. To be able to precisely identify the CMB in the data from Planck, scientists will have to be able to very accurately ‘subtract’ the ‘foreground’ radiation from our galaxy. C-bass will provide data needed to do this subtraction.

Edited by: Martin Zhuwakinyu
© Reuse this Comment Guidelines (150 word limit)
 
 
 
 
 
 
 
 
Other Science and Technology News
Following the release of her ground-breaking research into the way in which local exporters assessed foreign markets, the World Trade Organisation (WTO) has formally honoured North-West University (NWU) Professor Wilma Viviers as one of seven global candidates for...
Defence industrial cooperation between South Africa and Brazil was highlighted at the recent III Brazil Defence Industrial Base Show (III Mostra BID-Brasil, as it is known in Portuguese), held in Brazil’s capital city, Brasília. The Brazilian Ministry of Defence (MD)...
The University of Cape Town (UCT) has maintained its upward trend in the yearly Quacquarelli Symonds (QS) World University Rankings, moving up four places to 141 for the 2014/15 ranking cycle. The QS World University Rankings compare the top 800 institutions around...
More
 
 
Latest News
President Jacob Zuma would next month officially launch the Dube Tradeport, in Durban, as an industrial development zone (IDZ), the Department of Trade and Industry (DTI) announced on Friday. At the launch event, which was scheduled to take place on October 7, the...
JSE-listed York Timber Holdings on Friday said it expected its operating profit for the year ended June 30 to be between 25% and 30% lower than that of the prior year. As a result of the lower operating profit, combined with a 1% increase in the company’s biological...
Engineering solutions provider ELB Group has reported an 18% increase in turnover for the year, boosting overall income, from R1.9-billion in 2013, to R2.3-billion for the 12 months ended June 30. Describing this as “a satisfactory result, given the current difficult...
More
 
 
Recent Research Reports
 
 
 
 
This Week's Magazine
MANUFACTURING CAPABILITY Reliable Transformers designs and manufactures dry-type and oil-filled power and distribution transformers up to 3.5 MVA
While Ekurhuleni-based transformer manufacturer Reliable Transformers currently designs, manufactures and tests its products according to the SANS 780 specifications for distribution transformers and other applicable transformer specifications, it is working towards...
GHAREEB SAAD Kaspersky Lab products contain strong heuristics engines that monitor suspicious file execution to detect attacks
Global endpoint security solutions company Kaspersky Lab has introduced new measures to prevent cyber criminals from accessing sensitive data, alongside its malware-signature and heuristic device analysis detection methods. Threats to mobile devices have increased...
MICHAEL FLETCHER Real-time information available to government when citizens use publicly funded Wi-Fi networks will enable it to communicate with citizens and provide services
To ensure uptake and a positive impact, Wireless Fidelity (Wi-Fi) networks in cities must be provided at schools, community centres and commercial centres to enable citizens and government to access information that will improve access to and delivery of services....
Eco-estate Monaghan Farm, located near Lanseria airport, north-west of Johannesburg, has taken a new approach to modern living and sustainability with its 517 ha development, dedicated to farm living.
Forklift and lift-truck distributor Goscor Lift Hi-Reach launched the Genie SX-180, the tallest self-propelled super boom in Africa, in Johannesburg last month. “As the official distributor of the well-known Genie range of equipment in Southern Africa, we are pleased...
 
 
 
 
 
 
 
 
 
Alert Close
Embed Code Close
content
Research Reports Close
Research Reports are a product of the
Research Channel Africa. Reports can be bought individually or you can gain full access to all reports as part of a Research Channel Africa subscription.
Find Out More Buy Report
 
 
Close
Engineering News
Completely Re-Engineered
Experience it now. Click here
*website to launch in a few weeks