[FOSS-GPS] GPS orbits computations

Eugenio Realini eugenio.realini at gmail.com
Tue Oct 2 18:44:55 PDT 2012

Hi Antonio,

you should use the closest set in time available with respect to epoch
t. You can use the TOE (Time Of Ephemeris) for doing that.


2012/10/1 António Pestana <afsm.pestana at gmail.com>:
> I want to to compute the instantaneous position (GPS84) of a GPS satellite
> at a given epoch t (GPS time) using broadcast navigation data. I'm using
> RINEX 2.10 nav files. Often I have multiple ephemerides available for the
> same satellite. Which one should I use?
> Regards
> Antonio
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