^ abMcDowell, Jonathan. “Satellite Catalog”. Jonathan's Space Page. 11 April 2012閲覧。
^ abKrebs, Gunter. “"Trumpet F/O" 1, 2, 3”. Gunter's Space Page. 11 April 2012閲覧。
^http://www.washingtonpost.com/world/national-security/black-budget-summary-details-us-spy-networks-successes-failures-and-objectives/2013/08/29/7e57bb78-10ab-11e3-8cdd-bcdc09410972_story.html U.S. spy network’s successes, failures and objectives detailed in ‘black budget’ summary - Washington Post, 2313/08/30]
^Ray, Justin (13 March 2008). “Atlas 5 rocket launches from California for first time”. Spaceflight Now. 11 April 2012閲覧。
^ abMcDowell, Jonathan. “Launch Log”. Jonathan's Space Page. 11 April 2012閲覧。
^Ray, Justin (13 March 2008). “Atlas Launch Report - Mission Status Center”. Spaceflight Now. 11 April 2012閲覧。
^Krebs, Gunter. “NROL launches”. Gunter's Space Page. 11 April 2012閲覧。