Study of the 4179 Toutatis Asteroid

Details Study of the 4179 Toutatis Asteroid Study of the 4179 Toutatis Asteroid

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007dps....39.2007q&link_type=abstract

American Astronomical Society, DPS meeting #39, #20.07; Bulletin of the American Astronomical Society, Vol. 39, p.448

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Scientific paper

From August 13th -2004 to September 27th of the same year we had a lot of photos taken and we made precision differential photometry (hundredths of magnitute resolution) during several nights. It was obtained the Toutatis Asteroid's luminous curve, which made its maximum approach towards the Earth (0.0104 A.U) in September 29th -2004 and reached a magnitude of the order of 8.9 in September 28th -2004. This asteroid has a rotation movement very complex around two axis that can be owing to a past collision with another body. Its main period has been estimated by other authors in 7 days, 48 minutes. Astrometry was carried out, and we calculated the orbital elements. It was designed a computing program on Visual Basic 6.0, and the results we got were the following: semimajor axis = 2.527 AU, eccentricity = 0.629, orbital inclination = 0.464 degrees, longitude of the ascending node = 124.235 degrees, argument of perihelion = 278.783 degrees, longitude = 67.04 degrees. Besides, from the phase curve (absolute magnitude VS phase angle) it was obtained an asteroid's coefficient equal to 0.02 absolute magnitude/ degree.

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