{"id":33,"date":"2015-03-11T15:07:17","date_gmt":"2015-03-11T15:07:17","guid":{"rendered":"http:\/\/physics.uncg.edu\/new\/tco\/?page_id=33"},"modified":"2015-06-11T18:02:31","modified_gmt":"2015-06-11T18:02:31","slug":"ccd-camera","status":"publish","type":"page","link":"https:\/\/physics.uncg.edu\/tco\/tco\/telescope-building\/ccd-camera\/","title":{"rendered":"CCD Camera"},"content":{"rendered":"<p>A 1K x 1K ccd camera is used for research projects on the 0.81-meter telescope. The camera uses a Texas Instruments TC215 chip cooled with liquid nitrogen to approximately -100 degrees Celsius.<\/p>\n<p>The camera was constructed in 1994 by First Magnitude Corporation, Laramie, Wyoming. Pixel size is 12 microns square. At the Cassegrain focus of the 0.81-meter telescope this corresponds to a pixel size of 0.23 arcseconds on a side. On-camera binning can produce pixels of 0.46 arcseconds on a side. Using all 1024 pixels the image size is thus 3.86 arc minutes on a side.5<\/p>\n<p>Estimated camera readout noise is about 20 electrons with an estimated dark current of less than 0.1 electrons\/second. Images are produced in fits format using windows software operating on a 486sx computer at the observatory. The camera is equipped with UBVRI filters.<\/p>\n<p>The quantum efficiency of the camera is approximately 40% in the B passband, approximately 50% in the V passband, and peaks at approximately 70% in the near infrared at about 7000 Angstroms.<\/p>\n<p><a href=\"http:\/\/physics.uncg.edu\/tco\/wp-content\/uploads\/sites\/2\/2015\/03\/tcoccd1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-231\" src=\"http:\/\/physics.uncg.edu\/tco\/wp-content\/uploads\/sites\/2\/2015\/03\/tcoccd1.jpg\" alt=\"tcoccd1\" width=\"640\" height=\"480\" srcset=\"https:\/\/physics.uncg.edu\/tco\/wp-content\/uploads\/sites\/2\/2015\/03\/tcoccd1.jpg 640w, https:\/\/physics.uncg.edu\/tco\/wp-content\/uploads\/sites\/2\/2015\/03\/tcoccd1-300x225.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A 1K x 1K ccd camera is used for research projects on the 0.81-meter telescope. The camera uses a Texas [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":230,"parent":28,"menu_order":5,"comment_status":"open","ping_status":"open","template":"","meta":{"_acf_changed":false,"_mi_skip_tracking":false,"footnotes":""},"class_list":["post-33","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/physics.uncg.edu\/tco\/wp-json\/wp\/v2\/pages\/33","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/physics.uncg.edu\/tco\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/physics.uncg.edu\/tco\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/physics.uncg.edu\/tco\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/physics.uncg.edu\/tco\/wp-json\/wp\/v2\/comments?post=33"}],"version-history":[{"count":1,"href":"https:\/\/physics.uncg.edu\/tco\/wp-json\/wp\/v2\/pages\/33\/revisions"}],"predecessor-version":[{"id":232,"href":"https:\/\/physics.uncg.edu\/tco\/wp-json\/wp\/v2\/pages\/33\/revisions\/232"}],"up":[{"embeddable":true,"href":"https:\/\/physics.uncg.edu\/tco\/wp-json\/wp\/v2\/pages\/28"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/physics.uncg.edu\/tco\/wp-json\/wp\/v2\/media\/230"}],"wp:attachment":[{"href":"https:\/\/physics.uncg.edu\/tco\/wp-json\/wp\/v2\/media?parent=33"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}