GNSS Compare: software to compare the performance of Galileo signals (gnss-compare.readthedocs.io)

It would be interesting to view a skyplot of the GPS satellite trajectories, or at the least output the Dilution of Precision values comparing GPS with GPS+Galileo. This would help to illustrate the effect of additional satellites on measurement geometry, and thus on the precision of the output PVT solution.

It would be nice to compare with the hardware position estimator from the same GPS raw data.