{"id":12081,"date":"2013-12-31T14:26:23","date_gmt":"2013-12-31T20:26:23","guid":{"rendered":"http:\/\/bucktownbell.com\/?p=12081"},"modified":"2013-12-31T14:26:23","modified_gmt":"2013-12-31T20:26:23","slug":"mars-express-orbiter-buzzes-martian-moon-phobos","status":"publish","type":"post","link":"http:\/\/bucktownbell.com\/?p=12081","title":{"rendered":"Mars Express Orbiter Buzzes Martian Moon Phobos"},"content":{"rendered":"<blockquote><p>During the flyby, DSN operators reported \u201ca slight effect in the Doppler residuals,\u201d meaning that, as expected, Phobos\u2019 gravity had accelerated Mars Express\u2019 orbital velocity very slightly. Through careful analysis of the Doppler shifting of the radio signal, Phobos\u2019 gravity can be measured, allowing scientists to discern its mass and density \u2014 the most precise measurement to date.<\/p><\/blockquote>\n<p>via <a href=\"http:\/\/news.discovery.com\/space\/mars-express-orbiter-buzzes-martian-moon-phobos-131230.htm\">Mars Express Orbiter Buzzes Martian Moon Phobos : Discovery News<\/a>.<\/p>\n<blockquote><p>However, the operation allowed the spacecraft to beam back an extra 200 Gigabits of observational data, including imagery of Phobos during an earlier 500 kilometer pass of the moon.<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>During the flyby, DSN operators reported \u201ca slight effect in the Doppler residuals,\u201d meaning that, as expected, Phobos\u2019 gravity had accelerated Mars Express\u2019 orbital velocity very slightly. Through careful analysis of the Doppler shifting of the radio signal, Phobos\u2019 gravity &hellip; <a href=\"http:\/\/bucktownbell.com\/?p=12081\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[737],"tags":[899,862,512],"class_list":["post-12081","post","type-post","status-publish","format-standard","hentry","category-stem","tag-dsn","tag-physics","tag-space"],"_links":{"self":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/12081","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12081"}],"version-history":[{"count":1,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/12081\/revisions"}],"predecessor-version":[{"id":12082,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/12081\/revisions\/12082"}],"wp:attachment":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12081"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12081"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}