<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>A model based on Helmert transformation is presented in reduced-dynamic Precise Orbit Determination(POD). As an implementation, a reduced-dynamic POD approach was developed. The approach includes two steps: firstly, kinematic POD and then reduced-dynamic POD. Based on the approach, a set of programs were developed. POD of CHAMP and GRACE was then carried out. Kinematic and reduced-dynamic POD for CHAMP and GRACE satellite over 2 weeks time show that reduced-dynamic orbits of CHAMP have a mean 3D RMS of 0.26 m compared to PSO orbit of GFZ, and the mean 3D RMS of GRACE-A has the same value compared to GNV1B orbit of JPL. The 3D RMS is reduced by up to 40% compared to kinematic solutions.</p></abstract>

A model based on Helmert transformation is presented in reduced-dynamic Precise Orbit Determination(POD). As an implementation, a reduced-dynamic POD approach was developed. The approach includes two steps: firstly, kinematic POD and then reduced-dynamic POD. Based on the approach, a set of programs were developed. POD of CHAMP and GRACE was then carried out. Kinematic and reduced-dynamic POD for CHAMP and GRACE satellite over 2 weeks time show that reduced-dynamic orbits of CHAMP have a mean 3D RMS of 0.26 m compared to PSO orbit of GFZ, and the mean 3D RMS of GRACE-A has the same value compared to GNV1B orbit of JPL. The 3D RMS is reduced by up to 40% compared to kinematic solutions.

Reduced-Dynamic Precise Orbit Determination for Low Earth Orbiters Based on Helmert Transformation

GeoForschungsZentrum Potsdam, Telegrafenberg A17, 14473 Potsdam, Germany

Department of Surveying and Geo-informatics, Tongji University, 200092 Shanghai, China

Artificial Satellites

A model based on Helmert transformation is presented in reduced-dynamic Precise Orbit Determination(POD). As an implementation, a reduced-dynamic POD approach...

Reduced-Dynamic Precise Orbit Determination for Low Earth Orbiters Based on Helmert Transformation

Publié en ligne: 23 juin 2008

Pages: 155 - 165

DOI: https://doi.org/10.2478/v10018-0008-008-x

Mots clés
Reduced-dynamic precise Orbit Determination, Helmert transformation, GPS, LEO

This content is open access.

Reduced-Dynamic Precise Orbit Determination for Low Earth Orbiters Based on Helmert Transformation

Publié en ligne: 23 juin 2008

Pages: 155 - 165

DOI: https://doi.org/10.2478/v10018-0008-008-x

Mots clésReduced-dynamic precise Orbit Determination, Helmert transformation, GPS, LEO

This content is open access.

Mots clés
Reduced-dynamic precise Orbit Determination, Helmert transformation, GPS, LEO