GPS Data Availability - Positions, Clock Readings etc.

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Discussion Overview

The discussion centers around the availability of GPS data, specifically focusing on positions, clock readings, and raw satellite data. Participants explore where to find such data and express varying levels of familiarity with GPS technology.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant inquires about the availability of any GPS data, including positions and clock readings.
  • Several participants suggest that GPS data can be accessed through personal devices like phones.
  • Another participant seeks clarification on whether the original poster is looking for raw satellite data or an understanding of how GPS works.
  • A participant expresses interest in obtaining raw GPS satellite data to plot satellite positions and compare them with numerical solutions of Kepler and Schwarzschild orbits.
  • One participant shares a link to a resource that provides an introduction to GPS observables, noting that it is somewhat outdated but comprehensive.
  • Another participant provides a link to a Google search for ephemeris data related to GPS.

Areas of Agreement / Disagreement

Participants generally agree that GPS data can be accessed through various means, but there is no consensus on the specific types of data available or how to obtain raw satellite data. The discussion remains unresolved regarding the accessibility of the desired data.

Contextual Notes

There are limitations in the discussion regarding the specific types of GPS data that can be accessed and the conditions under which it may be available. Some participants express uncertainty about the availability of raw data.

Who May Find This Useful

Individuals interested in GPS technology, data analysis, or those seeking to understand the workings of GPS systems may find this discussion relevant.

Matter_Matters
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Hi there! Does anyone know where data from the GPS is available? Any data at all - positions. clock readings anything like that. Many thanks!
 
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Your phone.
 
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Vanadium 50 said:
Your phone.
..GPS satellite data
 
##^{50}V\ ## reply is the kind I had in mind (but refrained from...). But MM deserves better: if only he/she gave us a bit more context: you want to look at the raw satellite data with some kind of receiver ? Or you want to know how it all works in detail ?

I'm inclined to ask: what did you NOT find with google ?
 
BvU said:
##^{50}V\ ## reply is the kind I had in mind (but refrained from...). But MM deserves better: if only he/she gave us a bit more context: you want to look at the raw satellite data with some kind of receiver ? Or you want to know how it all works in detail ?
I'm looking for raw data for the GPS satellites. So, if for example I had data in regards to satellite positions I could plot the data. Then compare with numerical solutions of Kepler and Schwarzschild orbits. Along these kind of lines but by no means restricted to that.
Google hasn't revealed much in terms of actual data. I'm quite new to the GPS so I'm not entirely sure the data is even accessible.
 
I liked http://web.ics.purdue.edu/~ecalais/teaching/geodesy/GPS_observables.pdf as intro. Gov is pretty old, but quite comprehensive.
 
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