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2. Error analysis for the Global Positioning System - Wikipedia

   en.wikipedia.org/wiki/Error_analysis_for_the...

   When taken together, autonomous civilian GPS horizontal position fixes are typically accurate to about 15 meters (50 ft). These effects also reduce the more precise P(Y) code's accuracy. However, the advancement of technology means that in the present, civilian GPS fixes under a clear view of the sky are on average accurate to about 5 meters ...

3. GPS week number rollover - Wikipedia

   en.wikipedia.org/wiki/GPS_week_number_rollover

   The GPS week number rollover is a phenomenon that happens every 1,024 weeks, which is about 19.6 years. The Global Positioning System (GPS) broadcasts a date, including a week number counter that is stored in only ten binary digits , whose range is therefore 0–1,023.

4. Global Positioning System - Wikipedia

   en.wikipedia.org/wiki/Global_Positioning_System

   Clock synchronization: the accuracy of GPS time signals (±10 ns) [114] is second only to the atomic clocks they are based on, and is used in applications such as GPS disciplined oscillators. Disaster relief/emergency services: many emergency services depend upon GPS for location and timing capabilities.

5. Strava is an accurate GPS tracking app with plenty of social ...

   www.aol.com/strava-accurate-gps-tracking-app...

   I’ve always enjoyed exploring new ways to track my activity. There’s nothing like strapping on a new wearable or loading up a new app before hitting the road. I’m all for this relatively new ...

6. GPS signals - Wikipedia

   en.wikipedia.org/wiki/GPS_signals

   GPS encodes this information into the navigation message and modulates it onto both the C/A and P(Y) ranging codes at 50 bit/s. The navigation message format described in this section is called LNAV data (for legacy navigation). The navigation message conveys information of three types: The GPS date and time, and the satellite's status.

7. Real-time locating system - Wikipedia

   en.wikipedia.org/wiki/Real-time_locating_system

   Current location-tracking technologies can be used to pinpoint users of mobile devices in several ways. First, service providers have access to network-based and handset-based technologies that can locate a phone for emergency purposes. Second, historical location can frequently be discerned from service provider records.

8. Physicists construct the most accurate clock the world has ...

   www.aol.com/news/2013-05-29-worlds-most-accurate...

   Calling a clock the most accurate ever may sound like hyperbole, but physicists at the National Institute of Standards and Technology in Boulder, Colorado have built a pair of devices that can ...

9. Pseudorange - Wikipedia

   en.wikipedia.org/wiki/Pseudorange

   The accuracy of quartz clocks in general is worse (i.e. more) than one part in a million; thus, if the clock hasn't been corrected for a week, the deviation may be so great as to result in a reported location not on the Earth, but outside the Moon's orbit. Even if the clock is corrected, a second later the clock may no longer be usable for ...