The Sloan Digital Sky Survey Photometric Camera

Abstract

We have constructed a large format mosaic CCD camera for the Sloan Digital\nSky Survey. The camera consists of two arrays, a photometric array which uses\n30 2048 x 2048 SITe/Tektronix CCDs (24 micron pixels) with an effective imaging\narea of 720 square cm, and an astrometric array which uses 24 400 x 2048 CCDs\nwith the same pixel size, which will allow us to tie bright astrometric\nstandard stars to the objects imaged in the photometric camera. The instrument\nwill be used to carry out photometry essentially simultaneously in five color\nbands spanning the range accessible to silicon detectors on the ground in the\ntime-delay- and-integrate (TDI) scanning mode. The photometric detectors are\narrayed in the focal plane in six columns of five chips each such that two\nscans cover a filled stripe 2.5 degrees wide. This paper presents engineering\nand technical details of the camera.\n

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Affiliated Institutions

• University of Chicago US
• Tokyo University of Science JP
• Fermi National Accelerator Laboratory US
• Institute for Advanced Study US
• University of Washington US
• The University of Tokyo JP
• Pennsylvania State University US
• National Astronomical Observatory of Japan JP
• Princeton University US
• United States Naval Observatory US

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