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A Tool for the Visualization of Small Body Data Eliezer G. Kahn 1 , Olivier S. Barnouin 1 , Debra L.

Introduction: It is currently difficult for small body scientists and researchers to quickly analyze and interpret data returned from small body missions due to the large amounts of data returned and the fact that such data are often in difficult to understand formats. These challenges are enhanced by the typically odd shapes of small bodies such as 433 Eros or 25143 Itokawa, where the ellipsoid-based data integration and analysis tools are not well suited. This paper describes a new software tool called the Small Body Mapping Tool (SBMT), which was developed to facilitate the analysis of small body data (Figure 1). It is meant to be an easy to use tool for quickly searching and visualizing such data. This paper describes the overall design of the SBMT as well as the datasets that are currently supported. Design Overview: The Small Body Mapping Tool provides an intuitive user interface that makes use of modern interactive 3D graphics and visualization algorithms. It runs on all major operating systems including Mac, Linux, and Windows and is designed to facilitate adding new data or making other changes and quickly pushing these updates to the user. To achieve this, the SBMT is written primarily in the Java programming language for cross platform support and uses the Visualization Toolkit (VTK) for 3D rendering and visualization, an open source, cross-platform visu-alization library containing many advanced geometry algorithms [1]. Due to the large amounts of data involved, the SBMT does not store all data on the user's local machine but instead communicates with a remote server over the internet to fetch data. Data files are only downloaded as needed and are then cached on the user's machine to avoid repeated download of the same data. In addition, the server hosts an SQL database backend for indexing the data and performing searches on the datasets as requested by the user. Shape Models: The SBMT was originally designed to show shape models of the asteroid Eros, and most of the work to date has been done in visualizing data from the NEAR mission. In addition to Eros, three other small bodies are supported: Deimos, Itokawa, and Vesta. When viewing any of these shape models in 3D, the user can easily interact with the model by navigating around the model with the mouse. Rotating , spinning, panning, and zooming in and out are all supported. Two of the asteroids, Eros and …