6533b7d8fe1ef96bd126b655

RESEARCH PRODUCT

Orbit determination and errors of a star catalogue

J. M. Martinez GonzalezA. López GarcíaA. Ortiz GilJ. Chernetenko

subject

PhysicsSystematic errorSpherical coordinate systemAstronomyA* search algorithmAstronomy and AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsStar cataloguelaw.inventionSpace and Planetary SciencelawOrbit (dynamics)Astrophysics::Earth and Planetary AstrophysicsOrbit determinationAstrophysics::Galaxy Astrophysics

description

Abstract We obtain Ceres orbit taking into account all perturbations and applying correction of phase effect to observations. More than 3000 observations have been used and the results agree with other determinations. We have also investigated the influence of systematic errors of a star catalogue on the observations and its effect on final elements. To that aim, a simulation procedure has been applied to Ceres observations, including different laws for errors of star catalogue versus spherical coordinates. The best relations have been applied to real observations of Ceres, in order to obtain elements and star catalogue corrections. Preliminary results of these calculations are presented.

https://doi.org/10.1016/0032-0633(93)e0030-g