Evaluating the accuracy of ionospheric range delay corrections for navigation at low latitude

The simulated ionospheric range delay correction applied to geodetic positioning is analysed at different levels of ionospheric activity as well as to solstices and equinoxes. The large errors of the ionospheric correction on geodetic positioning are obtained in high solar activity during the equinox. This work shows that the accuracy achieved using simulated data at low latitude is similar to the accuracy reported using real data at mid latitude.