Feeds

10,000 km road trip proves Galileo satnav works, says ESA

Even with only four birds flying, Europe's GPS alternative won't let you get lost

3 Big data security analytics techniques

Europe's alternative to the USA's global positioning system (GPS) may only have four satellites in orbit, but European Space Agency (ESA) officials are confident that constellation delivers a valid service.

ESA boffins revealed this week that since March 2013 test vehicles around the world have run tests to determine the accuracy of positions returned by Galileo satellites in what was called the “ In-Orbit Validation (IOV) phase” of testing. More than 10,000 kilometres of driving later, “Many terabytes of IOV data were gathered,” according to Marco Falcone, ESA’s Galileo system manager, and once they had been analysed the data showed that “Galileo’s observed dual-frequency positioning accuracy is an average 8 m horizontal and 9 m vertical, 95% of the time. Its average timing accuracy is 10 billionths of a second”.

The tests also showed that 77 per cent of simulated distress locations could be located to within two kilometres and 95 per cent to within five kilometres. Alerts reached Galileo's mission control in 90 seconds, nicely below the design requirement of ten minutes.

All of which is apparently more than good enough for the applications Galileo's backers have in mind.

That's good news because six new Galileo satellites are due to go aloft in 2014, and will now do so safe in the knowledge that the project's design is valid. Galileo's plan calls for a constellation of 30 satellites by the end of the decade. ®

Top three mobile application threats

More from The Register

next story
So, just how do you say 'the mutt's nuts' in French?
Vital linguistic question interrupts LOHAN spaceplane mission
95 floors in 43 SECONDS: Hitachi's new ultra-high-speed lift
Guangzhou skyscraper denizens to hold on to hats
Most Americans doubt Big Bang, not too sure about evolution, climate change – survey
Science no match for religion, politics, business interests
KILLER SPONGES menacing California coastline
Surfers are safe, crustaceans less so
Discovery time for 200m WONDER MATERIALS shaved from 4 MILLENNIA... to 4 years
Alloy, Alloy: Boffins in speed-classification breakthrough
LOHAN and the amazing technicolor spaceplane
Our Vulture 2 livery is wrapped, and it's les noix du mutt
Liftoff! SpaceX Falcon 9 lifts Dragon on third resupply mission to ISS
SpaceX snaps smartly into one-second launch window
STEALTHY NANOROBOTS dress up as viruses, prepare to sneak into YOUR BODY
Cloaking techniques nicked from viruses tackle roadblocks on way to medical frontier
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Mainstay ROI - Does application security pay?
In this whitepaper learn how you and your enterprise might benefit from better software security.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.