Performance of Real-Time PPP for UTC(k) Time Transfer

SummaryWe compare time transfer UTC(ORB) – UTC(JV) between real-time PPP (Precise Point Positioning) and post-processed PPP used by BIPM in the computation of TAI. We find close to identical stabilities and sub-ns variation in differenced time-transfer estimates. Moreover, the stability of real-time PPP clock bias estimates are an order of magnitude improved over stand-alone receiver operation for observation intervals up to 10 000 s.