Point positioning with modern GPS signals with GipsyX

Since the initial operating capability of the GPS constellation in the early 1990s, geodetic applications have relied on a mix of C1, P1, L1, P2, and L2 signals. Since April of 2014, Block IIF satellites have been transmitting a new civilian signal in the L5 frequency band and both Block IIF and IIR-M satellites have been transmitting a new civilian code on L2. In a parallel development, the RINEX 3 convention began development in the mid-00's in order to deal with the increasing number of available signals and constellations. 2014 also marked the beginning of regular availability for RINEX3 files, and by 2016 over 100 sites produced such files. In this presentation, we present the results of point positioning several geodetic GNSS sites using several different combinations of modern and legacy signals over at least one year of data using the GipsyX software package. We will compare the stability of daily point positions as well as look for systematic differences in position using the new signals. We will also run a comparison of those signals for a kinematic point positioning example.