Abstract
The equations introduced in this paper are aimed to gain accuracy in the determination of the motion of middle size space objects with respect to space based APT laser systems; therefore, they can be used for these systems to engage cataloged space debris objects whose size ranges between 1 and 10 cm. The equations are derived under the assumption that the framework of the Earth surrounding space is post-Newtonian and, unlike the standard p-N equations, they are valid for distant targets. Further, their time validity is also substantially larger than that of the standard equations. The reason is that they include non-linear terms that model the Earth tidal potential along the lines joining the systems and the targets. The equations are derived in local Cartesian orbital coordinates; therefore, they are primarily adapted for use with inertial-guided systems.
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Notes
- 1.
We make the speed of light, c, and the universal gravitational constant, G, equal to 1, so that all magnitudes with dimension are given in seconds. Thus, m, the mass of the Earth, which is 1.479 × 10−11 approx., and the semi-major axes of the debris objects e.g. in LEO orbits, which range between 2.258 × 10−2 and 2.792 × 10−2 approx., give that ε is of the order of 10−9.
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Gambi, J.M., García del Pino, M.L., Rodríguez-Teijeiro, M.C. (2017). Non-linear Post-Newtonian Equations for the Motion of Designated Targets with Respect to Space Based APT Laser Systems. In: Quintela, P., et al. Progress in Industrial Mathematics at ECMI 2016. ECMI 2016. Mathematics in Industry(), vol 26. Springer, Cham. https://doi.org/10.1007/978-3-319-63082-3_73
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