aggressive: true, Examples of recent land use changes detectable on CORONA imagery: A) Western Mexico City, where massive urban sprawl has destroyed archaeological remains; B) Indus River Valley, Pakistan, where intensified irrigation agriculture has obscured archaeological sites; C) Three Gorges Dam, China, where construction of the world’s largest dam project has submerged countless archaeological sites. Some film was fogged. [7] The amount of film carried by the satellites varied over time. } if (!window.jQuery) loadJQuery(); }, 100); This involved capturing an image on photographic film, developing the film on board the satellite and then scanning the image electronically. + 'Please enter a valid email address' //show automatically after delay // FUNCTIONS Very successful mission, failure to deploy one solar panel and leak in Agena gas system shortened mission from 19 to 6 days, Drell, Sidney D. "Physics and U.S. National Security. while (c.charAt(0)==' ') { addCss('https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css'); Film return with two reentry vehicles and two panoramic cameras. Improvements in the imaging system were rapid, and the KH-3 missions could see objects 10 feet (3.0 m) in diameter. Cameras would take photographs only when pointed at the Earth. National Aeronautics and Space Administration. var ctx = this; A lot of work has focused, for example, on images from the United States’ first-ever spy satellite program, CORONA, designed to image Cold War hotspots in a less dangerous way than from a U-2 airplane. if (generalSettings.loadFontAwesome) { appendNewsletterSignup(); + '
' if (!o[this.name].push) { ctx.customSerializer(); closedSignupBar: { the systems code-named CORONA, ARGON, and LANYARD. function getCookie(cname, prefix) { These were different from the attitude stabilizing thrusters which had been incorporated from the beginning of the program. "The Design and Engineering of Corona's Optics." //don't run this function if the user has already triggered the modal by leaving the viewport Mission failed. } The CORONA Program. $('#ouibounce-modal') Smith, F. Dow. var c = ca[i]; if (typeof ouibounce !== 'undefined') { Attained orbit successfully. + '