Radar observations of Itokawa in 2004 and improved shape estimation
2005; Wiley; Volume: 40; Issue: 11 Linguagem: Inglês
10.1111/j.1945-5100.2005.tb00131.x
ISSN1945-5100
AutoresS. J. Ostro, Lance A. M. Benner, C. Magri, Jon D. Giorgini, Randy Rose, R. F. Jurgens, D. K. Yeomans, A. A. Hine, M. C. Nolan, Daniel J. Scheeres, Stephen B. Broschart, M. Kaasalainen, Jean‐Luc Margot,
Tópico(s)Astro and Planetary Science
ResumoMeteoritics & Planetary ScienceVolume 40, Issue 11 p. 1563-1574 Free Access Radar observations of Itokawa in 2004 and improved shape estimation Steven J. Ostro, Corresponding Author Steven J. Ostro Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109–8099, USAostro@reason.jpl.nasa.govSearch for more papers by this authorLance A. M. Benner, Lance A. M. Benner Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109–8099, USASearch for more papers by this authorChristopher Magri, Christopher Magri University of Maine at Farmington, 173 High Street, Preble Hall, Farmington, Maine 04938, USASearch for more papers by this authorJon D. Giorgini, Jon D. Giorgini Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109–8099, USASearch for more papers by this authorRandy Rose, Randy Rose Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109–8099, USASearch for more papers by this authorRaymond F. Jurgens, Raymond F. Jurgens Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109–8099, USASearch for more papers by this authorDonald K. Yeomans, Donald K. Yeomans Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109–8099, USASearch for more papers by this authorAlice A. Hine, Alice A. Hine Arecibo Observatory, HC3 Box 53995, Arecibo, Puerto Rico 00612, USASearch for more papers by this authorMichael C. Nolan, Michael C. Nolan Arecibo Observatory, HC3 Box 53995, Arecibo, Puerto Rico 00612, USASearch for more papers by this authorDaniel J. Scheeres, Daniel J. Scheeres Department of Aerospace, Engineering, University of Michigan, Ann Arbor, Michigan 48109–2140, USASearch for more papers by this authorStephen B. Broschart, Stephen B. Broschart Department of Aerospace, Engineering, University of Michigan, Ann Arbor, Michigan 48109–2140, USASearch for more papers by this authorMikko Kaasalainen, Mikko Kaasalainen Rolf Nevanlinna Institute, University of Helsinki, P.O. Box 4, FIN-00014 Helsinki, Finland, and Sodankyla Geophysical Observatory, University of Oulu, Tahtelantie 62, FIN-99600 Sodankyla, FinlandSearch for more papers by this authorJean-Luc Margot, Jean-Luc Margot Department of Astronomy, Space Sciences Building, Cornell University, Ithaca, New York 14853–6801, USASearch for more papers by this author Steven J. Ostro, Corresponding Author Steven J. Ostro Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109–8099, USAostro@reason.jpl.nasa.govSearch for more papers by this authorLance A. M. Benner, Lance A. M. Benner Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109–8099, USASearch for more papers by this authorChristopher Magri, Christopher Magri University of Maine at Farmington, 173 High Street, Preble Hall, Farmington, Maine 04938, USASearch for more papers by this authorJon D. Giorgini, Jon D. Giorgini Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109–8099, USASearch for more papers by this authorRandy Rose, Randy Rose Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109–8099, USASearch for more papers by this authorRaymond F. Jurgens, Raymond F. Jurgens Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109–8099, USASearch for more papers by this authorDonald K. Yeomans, Donald K. Yeomans Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109–8099, USASearch for more papers by this authorAlice A. Hine, Alice A. Hine Arecibo Observatory, HC3 Box 53995, Arecibo, Puerto Rico 00612, USASearch for more papers by this authorMichael C. Nolan, Michael C. Nolan Arecibo Observatory, HC3 Box 53995, Arecibo, Puerto Rico 00612, USASearch for more papers by this authorDaniel J. Scheeres, Daniel J. Scheeres Department of Aerospace, Engineering, University of Michigan, Ann Arbor, Michigan 48109–2140, USASearch for more papers by this authorStephen B. Broschart, Stephen B. Broschart Department of Aerospace, Engineering, University of Michigan, Ann Arbor, Michigan 48109–2140, USASearch for more papers by this authorMikko Kaasalainen, Mikko Kaasalainen Rolf Nevanlinna Institute, University of Helsinki, P.O. Box 4, FIN-00014 Helsinki, Finland, and Sodankyla Geophysical Observatory, University of Oulu, Tahtelantie 62, FIN-99600 Sodankyla, FinlandSearch for more papers by this authorJean-Luc Margot, Jean-Luc Margot Department of Astronomy, Space Sciences Building, Cornell University, Ithaca, New York 14853–6801, USASearch for more papers by this author First published: 26 January 2010 https://doi.org/10.1111/j.1945-5100.2005.tb00131.xCitations: 23AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract 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 paper's constraints on Itokawa's shape. The 2004 images, the first of the asteroid's 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 times 320 times 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. Citing Literature Volume40, Issue11November 2005Pages 1563-1574 ReferencesRelatedInformation
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