High-precision square-root filter/smoother for near-singular system in estimation of terrestrial reference frame

Toshio Michael Chin1, Richard S Gross2, Michael B Heflin3, Claudio Abbondanza3, Jay W Parker4 and Xiaoping Wu2, (1)Jet Propulsion Laboratory, Pasadena, CA, United States, (2)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (3)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (4)NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States