Exactly what data is sent from a GPS satellite to a GPS receiver? I think there is multiple types of data, since when I start up a GPS receiver, it takes some time before it becomes useful.

But a gps receiver uses the time it takes to receive a sattelite signal to determine the distance to that satellite. Even minor errors in the time of your gps receiver will cause huge errors and therefore a …

7 According to Wikipedia's article on GPS, Each GPS satellite continuously broadcasts a navigation message... Each complete message takes 750 seconds (12 1/2 minutes) to complete. My …

Aug 22, 2023 · I am trying to compare TLE derived x,y,z positions of a GPS satellite with those derived from precise GPS ephemerides (NGA). However, I am having some trouble getting the coordinate …

Jun 25, 2020 · My 2 cents on your questions: All Global Navigation Satellite Systems (GNSS) have ground track repeating with a time that varies according to the GNSS. Evidence of this for GPS, …

Dec 17, 2020 · 2 Is it possible to calculate the uncertainty in a GPS measurement at a given point at a given time by taking into account the number and positioning of the GPS satellites overhead? People …

Jun 4, 2015 · 30 If my understanding is correct, a GPS satellite produces a pretty simple signal which is basically composed of its location and its time. Given 4 of these signals, then one can uniquely solve …

I have heard that the GPS system is more accurate, and less accurate on some specific hours on the day. If this is true, how can I get the information on when GPS is more or less accurate at my lo...

Dec 5, 2016 · This gentleman here can compute the location of a GPS satellite given receivers location, satellite elevation and azimuth. I want to merely do the reverse, given satellite location (from …

Jan 31, 2025 · Is the question can be deducted to why GNSS satellite's elliptical orbit is predictable for only up to 4 hours? Looks like it has something with predicting time offsets: "Broadcast ephemerides …