High Resolution Images of Vesta at 1.65 μm

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

doi:10.1006/icar.1994.1063

High Resolution Images of Vesta at 1.65 μm

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

Steward Observatory

Research output: Contribution to journal › Article › peer-review

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 language	English (US)
Pages (from-to)	285-297
Number of pages	13
Journal	Icarus
Volume	108
Issue number	2
DOIs	https://doi.org/10.1006/icar.1994.1063
State	Published - Apr 1994

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1006/icar.1994.1063

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title = "High Resolution Images of Vesta at 1.65 μm",

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.",

author = "McCarthy, {Donald W.} and Freeman, {Jonathan D.} and Drummond, {Jack D.}",

year = "1994",

month = apr,

doi = "10.1006/icar.1994.1063",

language = "English (US)",

volume = "108",

pages = "285--297",

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issn = "0019-1035",

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T1 - High Resolution Images of Vesta at 1.65 μm

AU - McCarthy, Donald W.

AU - Freeman, Jonathan D.

AU - Drummond, Jack D.

PY - 1994/4

Y1 - 1994/4

N2 - 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.

AB - 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.

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DO - 10.1006/icar.1994.1063

M3 - Article

AN - SCOPUS:0001580286

SN - 0019-1035

VL - 108

SP - 285

EP - 297

JO - Icarus

JF - Icarus

IS - 2

ER -

High Resolution Images of Vesta at 1.65 μm

Abstract

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