HIPPARCOS minor planets: first step towards the link between the HIPPARCOS and the dynamical reference frames.

Details HIPPARCOS minor planets: first step towards the link between the HIPPARCOS and the dynamical reference frames. HIPPARCOS minor planets: first step towards the link between the HIPPARCOS and the dynamical reference frames.

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...304..176b&link_type=abstract

Astronomy and Astrophysics, v.304, p.176

Astronomy and Astrophysics

Astrophysics

6

Astrometry, Minor Planets, Methods: Data Analysis

Scientific paper

The observations of minor planets are of particular interest for determining a possible rotation between the Hipparcos and the dynamical reference frames. In order to evaluate these unknowns, Hipparcos data are compared to the values calculated from the equations of motion. The satellite's observations are related to intermediate reference frames called Reference Great Circle (RGC). In the case of a minor planet only the abscissa along a given RGC can be observed. The associated equations of condition involve in addition the orbital elements and dynamical parameters (such as masses of minor planets, etc.). For the minor planets, the accuracy of the satellite observations is quite better than the ground-based one. So, an improved determination of the unknowns under study can be expected. In this paper, the problem of the stability of a classical least squares solution is studied. Due to correlations, the system of normal equations is highly ill-conditioned. A statistical methodology is being constructed for a better determination of the parameters of interest. It is tested on the preliminary Hipparcos data. Singular value analysis and principal components regression are performed.

Affiliated with

Also associated with

No associations

Rating

HIPPARCOS minor planets: first step towards the link between the HIPPARCOS and the dynamical reference frames. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with HIPPARCOS minor planets: first step towards the link between the HIPPARCOS and the dynamical reference frames., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and HIPPARCOS minor planets: first step towards the link between the HIPPARCOS and the dynamical reference frames. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1252079