The Rapid products are the results of offline analysis on the orbits and the clock of the GPS and QZSS　satellites and the earth rotation parameter(ERP). The rapid products are to be released approximately 1 day later. Please note that the difference may increase during the events such as an attitude maneuvering. They are lists data below.

(1)Rapid orbit

the orbits and the clock for each satellite at each given time. Consult the sp3c format for more information. In the products, "Time System" (Line13 Columns10-12) indicates "QZS", the time system that is identical to the GPST with a difference of a few nanoseconds. Besides please note that the navigation messages are compliant with GPST.

(2)Rapid clock

the clock for satellites and monitoring station. The data format is Clock Rinex 3.02.

(3)Daily final ERP

Information about earth rotation parameter. The data format is IGS ERP format(version 2)