urn:nasa:pds:context:instrument:apache_point.sdss2m5.sdss_photometric 1.4 1.25.0.0 Product_Context 2026-07-07 1.4 Removed duplicate Internal_Reference entries from Reference_List. 2025-12-24 1.3 Adding missing "facility" references. Adding missing "telescope" references. 2025-12-24 1.2 Updated schema version. Adding missing "facility" references. Adding missing "telescope" references. 2025-01-02 1.1 Updated schema version. 2020-02-18 1.0 Initial export from OLAF urn:nasa:pds:context:telescope:apache_point.sdss2m5 instrument_to_telescope urn:nasa:pds:context:facility:observatory.apache_point instrument_to_facility Gunn, J.E., M. Carr, C. Rockosi, M. Sekiguchi, K. Berry, and 35 coauthors, The Sloan Digital Sky Survey photometric camera, Astron. J. 116, 3040-3081, 1998. SDSS Photometric Camera Imager The Sloan Digital Sky Survey Photometric Camera is a large-format mosaic CCD consisting of two arrays, a photometric array using 30 2048x2048 SITe/Tektronix CCDs with 24 micron pixels and an effective imaging area of 720 cm^2, and an astrometric array that uses 24 400x2048 CCDs with the same pixel size, allowing the objects imaged in the photometric camera to be tied to bright astrometric standard stars. The photometric detectors are arrayed in the focal plane in six columns of five chips each such that two scans cover a filled stripe 2.5 degrees wide. For additional information about the camera, see: Gunn, J.E., M. Carr, C. Rockosi, M. Sekiguchi, K. Berry, and 35 coauthors, The Sloan Digital Sky Survey photometric camera, Astron. J. 116, 3040-3081, 1998.