orbit determination


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orbit determination

The derivation of the orbit of a celestial object, such as a comet, from several observations of its position by using the laws of celestial mechanics. At least three observations are needed to determine the orbital elements and many methods have been used.
References in periodicals archive ?
Vallado and Carter showed that highly accurate orbit determination is possible with dense observation data for 120 s (a few hundred observations per satellite pass) [13].
Li et al., "Comparison analyses on the 150 x 150 lunar gravity field models by gravity/topography admittance, correlation and precision orbit determination," Advances in Space Research, vol.
Our interest is to understand how sensitive the orbit determination is to the ocean tides and how precisely the ocean tides should be modeled.
Each least squares orbit determination run was initialized using the JSpOC TLE, and each came to a convergence with close resemblance to the TLE.
A modellization piece that is often used in precise orbit determination is given by the socalled empirical accelerations.
Psiaki, "Tests of magnetometer/sun-sensor orbit determination using flight data," Journal of Guidance, Control, and Dynamics, vol.
Section 2 describes the methodology of GPSR based orbit determination; Section 3 is a brief introduction of the disturbance mathematical model; Section 4 legends the orbit determination algorithm description; Section 5 describes the GPS measurement models; description of OP algorithm settings is included in Section 6; and Section 7 offers the conclusion.
Desde su creacion, los Centros de Analisis (CA) encargados del calculo de orbitas del IGS son el Center for Orbit Determination in Europe (CODE); el Natural Resources Canada (NRCan); European Space Operations Centre (ESA/ESOC); el GeoForschungsZentrum (GFZ); el Jet Propulsion Laboratory (JPL); el Massachusetts Institute of Technology (MIT); el NOAA National Geodetic Survey (NOAA/NGS); el Scripps Orbit and Permanent Array Center-Scripps Institute of Oceanography (SOPAC-SIO); el United States Naval Observatory (USNO).