The AUSGeoid98 gravimetric quasigeoid model of Australia is augmented in the medium-and long-wavelength bands by removing its EGM96 basis and replacing this with GGM02C and EIGEN-GL04C, whose long wavelengths are derived from Gravity Recovery And Climate Experiment (GRACE) satellite gravimetry. No significant improvement over AUSGeoid98 is seen: agreements with GPS-levelling change from ±28 cm to ±27 cm (acknowledging distortions in the levelling); agreements with astrogeodetic vertical deflections do not change, remaining at about ±1 arc-second. While this removereplace approach is not theoretically exact, it is likely that errors in the terrestrial gravity data are contaminating these combined GRACE solutions in the medium wavelengths over Australia.