[time-nuts] GNSS sky view

Magnus Danielson magnus at rubidium.dyndns.org
Mon Aug 13 08:24:29 UTC 2018


Plot code and carrier phase residues alongside that.

Cheers,
Magnus

On 08/12/2018 06:30 AM, Mark Sims wrote:
> In preparation for CSRS-PPP's upcoming upgrade to their precise positioning service  I recently got in a new 8 channel GNSS antenna amplifier/splitter that does GPS L1/L2, Glonass, Galileo, Beidou.  I connected one channel to a Ublox M8T and enabled GPS, SBAS, Glonass, and Galileo.
> 
> Attached is a plot of the sky view.  It was tracking 28 satellites with usable signals.  There were actually 38 satellites visible.  If Great Britain gets kicked out of Galileo and goes ahead with their plan to do their own GNSS system, we're gonna need a bigger sky ;-)
> 
> I also recently added a feature to Lady Heather that lets you select a specific satellite and plot its azimuth, elevation, and signal level over time.   Attached is a plot of GPS PRN6 from horizon to horizon.   With my antenna location (horrible) anything below 25 degrees is really bad.  Once you get above 35 degrees things really settle down.
> 
> 
> 
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