Wrms of the height position time series from all VGOS sessions in solution S1 (ICRF3, ITRF2020) and in solution S2 (VIE2023-VG CRF, ITRF2020). In addition, wrms from solutions with VIE2023 TRF a priori are shown: S3 (ICRF3, VIE2023 TRF) and S4 (VIE2023-VG CRF, VIE2023 TRF). The lower plot depicts the difference in wrms computed as solutions with fixed ICRF3 minus solutions with fixed VIE2023-VG CRF.