Fig. 1From: Functional model modification of precise point positioning considering the time-varying code biases of a receiverTime-varying of P1 (blue lines) and P2 (green lines) receiver code biases of ALIC (left column) and MTDN (right column) on day 002 in 2017 and day 005 in 2018, respectively, as estimated by the MPPP, and their ionosphere-free (gold lines) and GF (purple lines) combinations. The red lines depict intraday temperature valuesBack to article page