{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "DAWN MCINTOSH", "hasEmail": "mailto:dawn.m.mcintosh@nasa.gov"}, "description": "**Subject Area:**\r\n\r\nAstronomical data\r\n\r\n \r\n\r\n**Description:**\r\n\r\nThe Sloan Digital Sky Survey (SDSS) is a multi-organization effort to gather deep, multi-color images covering more than a quarter of the sky and create 3-dimensional maps of celestial objects. The data is released annually to the general public as data releases (DR)'s.\r\n\r\n \r\n\r\nThe SDSS used a dedicated 2.5-meter telescope at Apache Point Observatory, New Mexico, equipped with two powerful special-purpose instruments. The 120-megapixel camera imaged 1.5 square degrees of sky at a time, about eight times the area of the full moon. A pair of spectrographs fed by optical fibers measured spectra of (and hence distances to) more than 600 galaxies and quasars in a single observation. A custom-designed set of software pipelines kept pace with the enormous data flow from the telescope.\r\n\r\n \r\n\r\nThe data set and more info can be found at http://cas.sdss.org/astrodr6/en/.", "identifier": "DASHLINK_135", "issued": "2010-09-13", "keyword": ["ames", "dashlink", "nasa"], "landingPage": "https://c3.nasa.gov/dashlink/resources/135/", "modified": "2025-07-17", "programCode": ["026:029"], "publisher": {"@type": "org:Organization", "name": "Dashlink"}, "title": "SDSS DR6 Data for Photometric Redshift Calculations"}