{"id":1375,"date":"2014-11-22T06:13:24","date_gmt":"2014-11-22T06:13:24","guid":{"rendered":"https:\/\/www.orbitalhub.com\/?p=1375"},"modified":"2015-07-05T18:42:40","modified_gmt":"2015-07-05T22:42:40","slug":"swarm","status":"publish","type":"post","link":"https:\/\/orbitalhub.com\/?p=1375","title":{"rendered":"Swarm"},"content":{"rendered":"<div style=\"float: left; padding-right: 30px;\">\n<p class=\"MsoNormal\" style=\"margin: 5px;\">&nbsp;<\/p>\n<p class=\"MsoNormal\" style=\"margin: 5px;\"><iframe loading=\"lazy\" width=\"580\" height=\"338\" src=\"http:\/\/www.youtube.com\/embed\/yOI0gqWhsOY\" frameborder=\"0\" allowfullscreen><\/iframe><\/p>\n<p class=\"MsoNormal\" style=\"margin: 5px;\">&nbsp;<\/p>\n<p>ESA dixit:<\/p>\n<p>&#8220;This animation shows changes in Earth&#8217;s magnetic field from January to June 2014 as measured by ESA&#8217;s Swarm trio of satellites.<\/p>\n<p>The magnetic field protects us from cosmic radiation and charged particles that bombard Earth, but it is in a permanent state of flux. Magnetic north wanders, and every few hundred thousand years the polarity flips so that a compass would point south instead of north. <\/p>\n<p>Moreover, the strength of the magnetic field constantly changes &#8212; and it is currently showing signs of significant weakening.<\/p>\n<p>The field is particularly weak over the South Atlantic Ocean &#8212; known as the South Atlantic Anomaly. This weak field has indirectly caused many temporary satellite &#8216;hiccups&#8217; (called Single Event Upsets) as the satellites are exposed to strong radiation over this area.<\/p>\n<p>More about Swarm: <a target=\"_blank\" href=\"http:\/\/www.esa.int\/swarm\">http:\/\/www.esa.int\/swarm<\/a>&#8220;<\/p>\n<p>Credit: ESA\/Dot2Dot<\/p>\n<p class=\"MsoNormal\" style=\"margin: 5px;\">&nbsp;<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>ESA dixit:This animation shows changes in Earth&#8217;s magnetic field from January to June 2014 as measured by ESA&#8217;s Swarm trio of satellites.The magnetic field protects us from cosmic radiation and charged particles that bombard Earth, but it is in a permanent state of flux. Magnetic north wanders, and every few hundred thousand years the polarity flips so that a compass would poin&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[463],"tags":[21,479],"class_list":["post-1375","post","type-post","status-publish","format-standard","hentry","category-videos","tag-nasa","tag-swarm"],"_links":{"self":[{"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/posts\/1375","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1375"}],"version-history":[{"count":2,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/posts\/1375\/revisions"}],"predecessor-version":[{"id":1893,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/posts\/1375\/revisions\/1893"}],"wp:attachment":[{"href":"https:\/\/orbitalhub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}