Circular and zero-inclination solutions for optical observations of Earth-orbiting objects

Details Circular and zero-inclination solutions for optical observations of Earth-orbiting objects Circular and zero-inclination solutions for optical observations of Earth-orbiting objects

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010cemda.106..157f&link_type=abstract

Celestial Mechanics and Dynamical Astronomy, Volume 106, Issue 2, pp.157-182

Astronomy and Astrophysics

Astronomy

3

Situational Awareness, Orbit Determination, Space Debris, Admissible Region

Scientific paper

Situational awareness of Earth-orbiting particles is important for human extraterrestrial activities. Given an optical observation, an admissible region can be defined over the topocentric range/range-rate space, with each point representing a possible orbit for the object. However, based on our understanding of Earth orbiting objects, we expect that certain orbits in that distribution, such as circular or zero-inclination orbits, would be more likely than others. In this research, we present an analytical approach for describing the existence of such special orbits for a given observation pass, and investigate topological features of the range/range-rate space by means of singularities in orbital elements.

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