TY - GEN
T1 - Kinematic and highly reduced-dynamic LEO orbit determination for gravity field estimation
AU - Jäggi, A.
AU - Beutler, G.
AU - Bock, H.
AU - Hugentobler, U.
PY - 2007
Y1 - 2007
N2 - Kinematic positions of low Earth orbiting satellites equipped with spaceborne GPS receivers are widely used as input for subsequent gravity field estimation procedures. Positions relying on reduceddynamic orbit determination, however, are often considered as inappropriate for this task, because they depend to some extent on the gravity field model underlying the orbit estimation. We review the principles of reduced-dynamic orbit determination and give the mathematical background for a very efficient estimation scheme of reduced-dynamic satellite trajectories using least-squares methods. Simulated as well as real data from the CHAMP GPS receiver are used to show the equivalence of kinematic and reduceddynamic orbits in the kinematic limit and to present a highly reduced-dynamic orbit determination scheme as an alternative to kinematic point positioning.
AB - Kinematic positions of low Earth orbiting satellites equipped with spaceborne GPS receivers are widely used as input for subsequent gravity field estimation procedures. Positions relying on reduceddynamic orbit determination, however, are often considered as inappropriate for this task, because they depend to some extent on the gravity field model underlying the orbit estimation. We review the principles of reduced-dynamic orbit determination and give the mathematical background for a very efficient estimation scheme of reduced-dynamic satellite trajectories using least-squares methods. Simulated as well as real data from the CHAMP GPS receiver are used to show the equivalence of kinematic and reduceddynamic orbits in the kinematic limit and to present a highly reduced-dynamic orbit determination scheme as an alternative to kinematic point positioning.
KW - Kinematic orbit determination
KW - Low Earth orbiter
KW - Reduced-dynamic orbit determination
UR - https://www.scopus.com/pages/publications/84884359276
U2 - 10.1007/978-3-540-49350-1_52
DO - 10.1007/978-3-540-49350-1_52
M3 - Conference contribution
AN - SCOPUS:84884359276
SN - 9783540493495
T3 - International Association of Geodesy Symposia
SP - 354
EP - 361
BT - Dynamic Planet
T2 - IAG Symposium on Dynamic Planet: Monitoring and Understanding a Dynamic Planet with Geodetic and Oceanographic Tools
Y2 - 22 August 2005 through 26 August 2005
ER -