jks

On the admin GPS tab the switch labeled "Plot Galileo?" determines if separate position solutions including Galileo, and not, are computed and displayed. But note that this only works if there are at least 4 sats of each category present (i.e. 4 Galileo, 4 Navstar/QZSS). On the new "Map" display different color pins will be used to show the differences. See the legend at the bottom of the map.

Sometimes when Galileo sats are used the positions don't agree with Navstar/QZSS (i.e. the green and red/yellow pins will be spaced some distance apart). This may be due to the well known false-peak locking issue with the Galileo waveform. We are still implementing a solution for this issue.

You can see from the orbital tracks why the shadow hole exists if you're located close enough to the poles. From the north pole all GPS sats would appear biased toward the south.

Due to QZSS I learned there is a difference between the terms geosynchronous and geostationary. 3 of the 4 QZSS sats trace the same figure-8 pattern on the Earth because they are geosynchronous (and have a high inclination). QZS-3 is truly geostationary (appears at a single point on the Earth) like the majority of the communications satellites.