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Near-IR imaging of asteroid 4 Vesta

Authors
Type
Published Article
Journal
Icarus
Publisher
Elsevier
Publication Date
Sep 29, 2005
Volume
177
Issue
1
Pages
190–195
Source
SETI Institute
License
Unknown

Abstract

The Keck Observatory s adaptive optics (AO) system has been used to observe Asteroid 4 Vesta during its 2003 closest approach to Earth. Broadband K′-and L′-band images, centered at 2.1 and 3.6 μm, respectively, are presented here. The sharpness of the images was improved by applying a deconvolution algorithm, MISTRAL, to the images. The K′-and L′-band images at spatial resolutions of 53 km (0.055 ″) and 88 km (0.085 ″), respectively, display albedo features on the surface of the asteroid that can also be seen ...

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