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Pole orientation and triaxial ellipsoid shape of (25143) 1998 SF36, a target asteroid of the MUSES-C* mission
Earth, Planets and Space volume 55, pages 341–347 (2003)
Abstract
The near-earth asteroid (25143) 1998 SF36 is a target body for the Japanese sample-return MUSES-C mission. We present here its pole orientation and triaxial ellipsoid shape, using light curve data obtained with three telescopes at Kiso, Mitaka, and Pic du Midi. The solution obtained for the pole orientation has ecliptic latitude λ = 320 ± 30° and ecliptic longitude β = —75 ± 12°. The estimated triaxial ellipsoid shape is a/b= 2.1 and b/c= 1.7 assuming m= 0.03, which is the coefficient of the empirical relation between the light curve amplitude and the phase angle for S-type asteroids (Zappalà et al., 1990). We also found m to be related to asteroid surface roughness, using a light curve simulator.
References
Binzel, R. P., A. S. Rivkin, S. J. Bus, J. M. Sunshine, and T. H. Burbine, MUSES-C Target Asteroid (25143) 1998 SF36: A Reddened Ordinary Chondrite, Meteoritics & Planetary Science, 36(8), 1167–1172, 2001.
Bowell, E. and K. Lumme, Colorimetry and Magnitudes of Asteroids, in Asteroids, Edited by T. Gehrels, pp. 132–169, University of Arizona Press, 1979.
Dermawan, B., T. Nakamura, H. Fukushima, H. Sato, F. Yoshida, and Y. Sato, CCD Photometry of the MUSES-C Mission Target: Asteroid (25143) 1998 SF36, Publications of the Astronomical Society of Japan, 54, 635–640, 2002.
Dotto, E., M. A. Barucci, and M. Fulchignoni, Ground-based Ida model comparison with the first Galileo image, Planet. Space Sci., 43(5), 683–689, 1995.
Farquhar, R., J. Kawaguchi, C. Russell, G. Schwehm, J. Veverka, and D. Yeomans, Space craft Exploration of Asteroids: The 2001 Perspective, in Asteroid III, Edited by W. F. Bottke, Jr., A. Cellino, P. Paolicchi, and R. P. Binzel, pp. 367–378, 2002.
Fujiwara, A., J. Kawaguchi, and K.T Uesugi, Role of asteroid sample return mission (MUSES-C) in asteroid research, Advances in Space Research, 2002 (submitted).
Hapke, B., Theory of Reflectance and Emittance Spectroscopy, Cambridge University Press, 1993.
Helfenstein, P. and J. Veverka, Physical characterization of asteroid surfaces from photometric analysis, in Asteroids II, Edited by Richard P. Binzel, T. Gehrels, M. S. Matthews, pp. 524–556, University of Arizona Press, 1989.
Karttunen, H. and E. Bowell, Modeling asteroid brightness variations. II—The interpretability of light curves and phase curves, Astronomy and Astrophysics, 208, 320–326, 1989.
Landolt, A. U., UBVRI photometric standard stars in the magnitude range 11.5–16.0 around the celestial equator, Astronomical Journal, 104, 340–371, 436–491, 1992.
Magnusson, P., Distribution of spin axes and senses of rotation for 20 large asteroids, Icarus, 68, 1–39, 1986.
Michaowski, T., W. Pych, J. Berthier, A. Kryszczynska, T. Kwiatkowski, J. Boussuge, S. Fauvaud, P. Denchev, and R. Baranowski, CCD photometry, spin and shape models of five asteroids: 225, 360, 416, 516, and 1223, Astronomy and Astrophysics Supplement, 146, 471–479, 2000.
Ohba, Y., Physical Model of (25143) 1998 SF36, The Target Asteroid of Sample Return Mission, MUSES-C—Estimation from Ground Observation and Simulation—, Master’s thesis, Univ. of Tokyo, 2002.
Ostro, S. J., L. A. M. Benner, M. C. Nolan, J. D. Giorgini, R. F. Jurgens, R. Rose, and D. K. Yeomans, Rader observations of Asteroid 25143 (1998 SF36), American Astronomical Society, DPS meeting, 33, 41.13, 2001.
Zappalà, V., A. Cellino, A. M. Barucci, M. Fulchignoni, and D. F. Lupishko, An analysis of the amplitude-phase relationship among asteroids, Astronomy and Astrophysics, 231, 548–560, 1990.
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Ohba, Y., Abe, M., Hasegawa, S. et al. Pole orientation and triaxial ellipsoid shape of (25143) 1998 SF36, a target asteroid of the MUSES-C* mission. Earth Planet Sp 55, 341–347 (2003). https://doi.org/10.1186/BF03351767
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DOI: https://doi.org/10.1186/BF03351767