Hi Antonio, that's right. The closer epoch t is to TOE, the better that specific ephemeris set is able to describe the satellite orbit. As far as I understand, at least :)
Eugenio 2012/10/3 António Pestana <[email protected]> > Hi Eugenio > > Thanks. If I understand you correctly, it doesn't matter if TOE is before > or after the epoch t. Am I right? > > Regards > > Antonio > > > 2012/10/3 Eugenio Realini <[email protected]> > >> 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. >> >> Cheers, >> Eugenio >> >> >> 2012/10/1 António Pestana <[email protected]>: >> > 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 >> > >> > _______________________________________________ >> > This message is sent to you from [email protected] mailing list. >> > Visit http://lists.osgeo.org/mailman/listinfo/foss-gps to manage your >> > subscription >> > For more information, check http://wiki.osgeo.org/wiki/FOSS-GPS >> > >> _______________________________________________ >> This message is sent to you from [email protected] mailing list. >> Visit http://lists.osgeo.org/mailman/listinfo/foss-gps to manage your >> subscription >> For more information, check http://wiki.osgeo.org/wiki/FOSS-GPS >> > > > _______________________________________________ > This message is sent to you from [email protected] mailing list. > Visit http://lists.osgeo.org/mailman/listinfo/foss-gps to manage your > subscription > For more information, check http://wiki.osgeo.org/wiki/FOSS-GPS > >
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