Fig. 2From: Augment BeiDou real-time precise point positioning using ECMWF dataBeiDou-only PPP solutions at station NNOR on February 15, 2016 [day of year (DOY) 44 of 2016]. Blue denotes the standard PPP solution, green represents the ECMWF-augmented PPP solution with analysis data, and red stands for the ECMWF-augmented PPP solution with prediction dataBack to article page