Menu
Russia's Glonass GPS system suffers major disruption

Russia's Glonass GPS system suffers major disruption

The glitch caused problems worldwide as many receivers use Glonass signals

A status page on the website of the Russian Federal Space Agency notes disruption to Glonass satellites on April 2, 2014

A status page on the website of the Russian Federal Space Agency notes disruption to Glonass satellites on April 2, 2014

Users of satellite navigation systems around the world were experiencing problems this week after Russia's Glonass satellite positioning system was hit by a major disruption.

So far, the cause of the problem is a mystery. It started around 9 p.m. GMT (5 p.m. Eastern Time) on Tuesday, when most of the 24 satellites that make up the Glonass constellation began broadcasting erroneous data about their locations. The ability of satellite positioning receivers to provide an accurate fix is tied to the accuracy of the signal from space, so the problem immediately affected users.

"We could see this happening all over the world," said Drew Davies, an operations executive at Canadian geo-services company Rx Networks and one of the first to spot the problem.

The U.S.' Navstar Global Positioning System (GPS), the best known system for navigation, was not directly affected. But many modern GPS receivers and smartphones also rely on Glonass signals for an accurate location fix, so the Russian glitch caused problems well beyond that country's borders.

The issues would have affected "urban canyons," for instance, or streets bordered by high-rise buildings that block out most of the sky. "If you can only see three GPS satellites, your phone might use a couple of Glonass satellites to get a location," Davies said.

While smartphone users had to put up with errors, some professional users were able to minimize the disruption.

"If you are unable to get a fixed position, deactivate the Glonass satellites on [your] receiver," Belgian geo-services company Coudere told its users.

A status graph on the website of Russia's Federal Space Agency confirmed the error impacted all Glonass satellites at some point, with the system finally returning to full health around 11 hours after the trouble began.

Despite the widespread disruption, the space agency has yet to provide details about what caused it.

"The likelihood is that bad ephemeris data was uploaded," said Davies, referring to the celestial data that satellites use to determine their position.

Satellite navigation systems are vitally important to the global economy. The logistics industry relies on satellite navigation to manage the global flow of goods, aircraft use it for navigation, and deep-sea oil rigs use it to maintain their position at sea. The time signals they provide also help numerous automated systems stay accurate.

Martyn Williams covers mobile telecoms, Silicon Valley and general technology breaking news for The IDG News Service. Follow Martyn on Twitter at @martyn_williams. Martyn's e-mail address is martyn_williams@idg.com

Subscribe here for up-to-date channel news

Follow Us

Join the New Zealand Reseller News newsletter!

Error: Please check your email address.

Tags Russian Federal Space Agencypopular sciencetelecommunicationsatellite

Featured

Slideshows

StorageCraft celebrates high achievers at its inaugural A/NZ Partner Awards

StorageCraft celebrates high achievers at its inaugural A/NZ Partner Awards

Revealed at a glitzy bash in Sydney at the Ivy Penthouse, the first StorageCraft Partner Awards locally saw the vendor honour its top-performing partners with ASI Solutions, SMBiT Pro, Webroot, ACA Pacific and Soft Solutions New Zealand taking home the top awards. Photos by Maria Stefina.

StorageCraft celebrates high achievers at its inaugural A/NZ Partner Awards
Kiwi resellers make a splash on Synnex and Lenovo RotoVegas road trip

Kiwi resellers make a splash on Synnex and Lenovo RotoVegas road trip

​Synnex and Lenovo hosted 18 resellers for an action-packed weekend adventure in RotoVegas, taking in white water rafting on the Kaituna River, as well as quad biking and dinner at Stratosfare​, overlooking Lake Rotorua at the top of Mount Ngongotaha​. Photos by Synnex.

Kiwi resellers make a splash on Synnex and Lenovo RotoVegas road trip
Show Comments