Abstract:Using IGS data and products the forecasted ephemeris accuracy and the forecasted clock correction accuracy as well as the standard single point positioning accuracy during 1995 to 2010 is analyzed. These analyses show that all the accuracy trend to increase gradually, such as the forecast ephemeris accuracy (SISRE) is below 2 m, and the predicted clock correction accuracy is (6-20)×10 -9 s, the standard positioning accuracy is 1.0-7.0 m in the horizontal and 2.5-27.0 m in the vertical.
Wang Aisheng,and Wang Fei. ON GPS FORECASTING EPHEMERIS AND CLOCK CORRECTION ACCURACY AND EFFECTS ON STANDARD POINT POSITIONING[J]. jgg, 2012, 32(6): 76-80.