Jason-2 Precise Orbit Determination Using DORIS RINEX Phase Data

The new DORIS observations in RINEX format are now available with dual fre-quency phase and pseudo-range measurements. Due to shorter distribution latency with re-spect to the older MVR data in doris2.2format, this RINEX DORIS data can be widely used in LEO medium orbit determination. With analyzing the phase observation equation, this pa-per has proposed two different methods to correct the main receiver clock error, thus reali-zing the Jason-2POD based on DORIS phase data. The research shows that 1cm radial orbit precision can be achieved by using fitted receiver clock offset correction or frequency offset correction. And by weakening the high-order receiver clock error, applying the fitted clock offset correction can further improve the orbit precision.