High Resolution Images of Vesta at 1.65 μm

Donald W. McCarthy, Jonathan D. Freeman, Jack D. Drummond

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

A series of high spatial resolution (∼140 km) images of the asteroid 4 Vesta has been obtained in reflected light at 1.65 μm during the solar oppositions of 1990 and 1992. Full longitudinal coverage has provided a solution for the triaxial dimensions and rotational pole orientation. Although resolvable surface features are indicated from other techniques, they are not imaged here and must have low contrast relative to the overall background of reflected light. However, in all 48 images, a nonmoving "spot," a possible glint(s), does appear near the sub-Sun point contributing ∼10-18% of the total flux. This feature does not appear in similar observations of the asteroid 1 Ceres.

Original languageEnglish (US)
Pages (from-to)285-297
Number of pages13
JournalIcarus
Volume108
Issue number2
DOIs
StatePublished - Apr 1994

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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