Radar observations of Itokawa in 2004 and improved shape estimation
Author
Ostro, Steven J.Benner, Lance A. M.
Magri, Christopher
Giorgini, Jon D.
Rose, Randy
Jurgens, Raymond F.
Yeomans, Donald K.
Hine, Alice A.
Nolan, Michael C.
Scheeres, Daniel J.
Broschart, Stephen B.
Kaasalainen, Mikko
Margot, Jean-Luc
Issue Date
2005-01-01
Metadata
Show full item recordCitation
Ostro, S. J., Benner, L. A., Magri, C., Giorgini, J. D., Rose, R., Jurgens, R. F., ... & Margot, J.-L.. (2005). Radar observations of Itokawa in 2004 and improved shape estimation. Meteoritics & Planetary Science, 40(11), 1563-1574.Publisher
The Meteoritical SocietyJournal
Meteoritics & Planetary ScienceAdditional Links
https://meteoritical.org/Abstract
We present June 2004 radar images of asteroid 25143 Itokawa (1998 SF36) that improve upon the longitude-latitude coverage of images obtained in 2001 by Ostro et al. (2004) and use the 2001-2004 data to refine that papers constraints on Itokawas shape. The 2004 images, the first of the asteroids southern side, look distinctly different from the 2001 images, revealing leading edges that are much more curved and rugged than the nearly convex leading edges seen at northern latitudes in 2001. Itokawa is shaped like a slightly asymmetrical, bent, lumpy ellipsoid with dimensions along the principal axes within 10% of 594 x 320 x 288 m. To illustrate the uncertainty space associated with shape reconstruction from images with suboptimal orientational coverage, we present two alternative three-dimensional models of the object.Type
Articletext
Language
enISSN
1945-5100ae974a485f413a2113503eed53cd6c53
10.1111/j.1945-5100.2005.tb00131.x