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Re: gpsrinex epoch timestamps look wrong


From: Gary E. Miller
Subject: Re: gpsrinex epoch timestamps look wrong
Date: Tue, 28 Apr 2020 17:08:48 -0700

Yo Greg!

On Tue, 28 Apr 2020 08:29:42 -0400
Greg Troxel <address@hidden> wrote:

> > I looked at the old RINEX I managed to get throug NRCAN last year
> > and that seems to have the same issue, and yet they processed it
> > using the fractional timestamps.
> >
> > If we assume for a moment that they do not require the timestamps
> > to be perfeclty on top of the second, but they need them to be close
> > to 30 seconds apart, then maybe the code in gpsrinex.c which selects
> > which observations to save should take the fraction into account
> > so that instead of:  
> 
> FWIW, I have been recording raw .ubx from an M8T, on an Emlid Reach,
> and using their provided rtklib RINEX converter, resulting in 1s data
> interval, and have processed that via NRCAN in both static and
> kinematic mode with no issues.

Can you provide the .ubx and RINEX?  That gives us a known good .ubx and
we can compare RINEX files.

RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        address@hidden  Tel:+1 541 382 8588

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