Russian GLONASS offline for 11 hours

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In summary, the Russian GLONASS system experienced a major disruption for 11 hours on April 2, rendering it unusable to all receivers. The cause of this disruption is still unknown, but it has been restored to full and correct service. The GLONASS satellites are used for positioning, navigation, and timebase services, similar to the US GPS system. There is speculation that the disruption could have been caused by a software update or hacking.
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nsaspook
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http://gpsworld.com/glonass-gone-then-back/

In an unprecedented total disruption of a fully operational GNSS constellation, all satellites in the Russian GLONASS broadcast corrupt information for 11 hours, from just past midnight until noon Russian time (UTC+4), on April 2 (or 5 p.m. on April 1 to 4 a.m. April 2, U.S. Eastern time). This rendered the system completely unusable to all worldwide GLONASS receivers. Full and correct service has now been restored.
Bad software update?
 
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1. What is Russian GLONASS?

Russian GLONASS (Global Navigation Satellite System) is a navigation system developed by Russia to provide global positioning and timing services.

2. How does Russian GLONASS work?

Russian GLONASS works by using a network of satellites to transmit signals to receiving devices on the ground. These devices use the signals to determine their location, velocity, and time.

3. Why was Russian GLONASS offline for 11 hours?

The exact reason for the 11-hour outage is not known, but it is believed to be due to a technical malfunction or maintenance work on the system.

4. What impact did the 11-hour outage have?

The outage had a significant impact on users who rely on Russian GLONASS for navigation and timing services. It also affected industries such as transportation, telecommunications, and emergency services.

5. Is Russian GLONASS reliable?

Overall, Russian GLONASS is considered to be a reliable navigation system, but like any technology, it is not immune to occasional technical issues or maintenance work that can cause temporary outages.

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