Abstract
We consider the perturbations on near-earth asteroid orbits due to various forces stemming from solar radiation. We find that the existence of precise radar astrometric observations at multiple apparitions, spanning periods on the order of 10 years, allows the detection of such forces on bodies as large as kilometer across. Indeed, the perturbations are so substantial that certain of the forces can be essential to fit an orbit to the observations. In particular, we show that the recoil force of thermal radiation from the asteroid, known as the Yarkovsky effect, is the most important of these unmodeled perturbations. We also show that the effect of reflected light can be important if even moderate albedo variations are present, while moderate changes in oblateness appear to have a far smaller effect. An unexpected result is that the Poynting—Robertson effect, typically only considered for submillimeter dust particles, could be observable on smaller asteroids with high eccentricity, such as 1566 Icarus. Finally, we also study the possibility of improving the orbit uncertainty through well-timed optical observations which might help in better detection of these nongravitational perturbations.
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References
Burns, J. A., Lamy, P. L. and Soter, S.: 1979, ‘Radiation forces on small particles in the solar system’, Icarus 40, 1–48.
De Angelis, G.: 1995, ‘Asteroid spin, pole and shape determinations’, Planet. Sp. Sci. 43, 649–682.
Hudson, R. S., Ostro, S. J., Jurgens, R. F. et al.: 2000, ‘Radar observations and physical model of asteroid 6489 Golevka’, Icarus 148, 37–51.
Kocifaj, M. and Klacka, J.: 1999, ‘Real dust particles and unimportance of the Poynting—Robertson effect’, http://xxx.lanl.gov/astro-ph/9910042
Rubincam, D. P.: 1995, ‘Asteroid orbit evolution due to thermal drag’, J. Geophys. Res. 100, 1585–1594.
Veeder, G. J., Hanner, M. S., Matson, D. L., Tedesco, E. F., Lebofsky, L. A. and Tokunaga, A. T.: 1989, ‘Radiometry of near-earth asteroids’, Astron. J. 97, 1211–1219.
Vokrouhlickÿ, D.: 1998a, ‘Diurnal Yarkovsky effect as a source of mobility of meter-sized asteroidal fragments. I. Linear theory’, AandA 335, 1093–1100.
Vokrouhlick, D.: 1998b, ‘Diurnal Yarkovsky effect as a source of mobility of meter-sized asteroidal fragments. II. Non-sphericity effects’, AandA 338, 353–363.
Vokrouhlick, D.: 1999, ‘A complete linear model for the Yarkovsky thermal force on spherical asteroid fragments’, AandA 344, 362–366.
Vokrouhlick, D. and Farinella, P.: 1998, ‘The Yarkovsky seasonal effect on asteroidal fragments: a nonlinearized theory for the plane-parallel case’, Astron. J. 116, 2032–2041.
Vokrouhlick, D. and Farinella, P.: 1999, ‘The Yarkovsky seasonal effect on asteroidal fragments: a nonlinearized theory for spherical bodies’, Astron. J. 118, 3049–3060.
Vokrouhlick, D., Milani, A. and Chesley, S. R.: 2000, ‘Yarkovsky effect on small near-earth asteroids: mathematical formulation and examples’, Icarus 148 118–118(Paper I).
Vokrouhlick, D. and Milani, A.: 2000, ‘Direct solar radiation pressure on orbits of small near-earth asteroids: observable effects?’, AandA 362, 746–755 (Paper I I ).
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© 2001 Springer Science+Business Media Dordrecht
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Vokrouhlický, D., Chesley, S.R., Milani, A. (2001). On the Observability of Radiation Forces Acting on Near-Earth Asteroids. In: Pretka-Ziomek, H., Wnuk, E., Seidelmann, P.K., Richardson, D.L. (eds) Dynamics of Natural and Artificial Celestial Bodies. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-1327-6_16
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DOI: https://doi.org/10.1007/978-94-017-1327-6_16
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