{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "Donald K. Yeomans", "hasEmail": "mailto:DONALD.K.YEOMANS@NASA.GOV"}, "description": "The JPL HORIZONS on-line solar system data and ephemeris computation service provides access to key solar system data and flexible production of highly accurate ephemerides for solar system objects ( 561485 asteroids, 3099 comets, 171 planetary satellites, 8 planets, the Sun, L1, L2, select spacecraft, and system barycenters ). HORIZONS is provided by the Solar System Dynamics Group of the Jet Propulsion Laboratory.", "distribution": [{"@type": "dcat:Distribution", "downloadURL": "http://ssd.jpl.nasa.gov/horizons.cgi", "format": "HTML", "mediaType": "text/html"}], "identifier": "NASA-0000054", "issued": "2018-06-25", "keyword": ["barycenters", "dem", "exoplanet-exploration", "galaxy", "nga", "planets", "space-science", "telnet"], "landingPage": "https://data.nasa.gov/dataset/horizons", "modified": "2025-04-23", "programCode": ["026:000"], "publisher": {"@type": "org:Organization", "name": "National Aeronautics and Space Administration"}, "title": "Horizons"}