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An Ontology-Based Virtual Orrery Tutorials in this technical memorandum explain how to use the Protégé ontology editor to import data from Excel and export data from Protégé in the JavaScript Object Notation Linked Data (JSON-LD) format then how to transform the JSON-LD file into variables for web apps. These tutorials apply JavaScript and R programming languages and 3D graphics libraries. Ontologies enable standardization, data sharing, and semantic interoperability. An ontology models a domain of knowledge as taxonomies of annotated classes, data properties, relational object properties, and inference rules. This technical memorandum includes a data dictionary for a subset of the Space Situational Awareness Ontology (SSAO).
Document ID
20210000030
Document Type
Technical Memorandum (TM)
Authors
D A O'Neil (Marshall Space Flight Center Redstone Arsenal, Alabama, United States)
R J Rovetto (NASA Datanauts)
Date Acquired
January 4, 2021
Publication Date
January 1, 2021
Publication Information
Subject Category
Computer Programming and Software
Report/Patent Number
M-1516
NASA/TM-20210000030
Funding Number(s)
CONTRACT_GRANT: GM10331601
WBS: 981698.03.04.62.04
Distribution Limits
Public
Copyright
Portions of document may include copyright protected material.
Technical Review
NASA Technical Management
Keywords
Ontologies
Web-apps
3D graphics
Orbits
Trajectories
Visualization

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NameType NASA_TM_20210000030.pdf STI