{"id":15644,"date":"2023-10-08T09:42:11","date_gmt":"2023-10-08T04:12:11","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=15644"},"modified":"2025-04-03T18:47:39","modified_gmt":"2025-04-03T13:17:39","slug":"atmospheric-perturbations-around-the-eclipse-path-apep-mission","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/atmospheric-perturbations-around-the-eclipse-path-apep-mission\/","title":{"rendered":"Atmospheric Perturbations around the Eclipse Path (APEP) mission"},"content":{"rendered":"<h2><strong>About Atmospheric Perturbations around the Eclipse Path (APEP) mission<\/strong><\/h2>\n<ul>\n<li>The mission will involve <strong>launching three rockets<\/strong> equipped with scientific instruments.<\/li>\n<li><strong>Objective:<\/strong> To know how <strong>the upper atmosphere will change during the eclipse<\/strong>, especially the moment when there would be a sudden reduction in light.<\/li>\n<li>During an eclipse, the <strong>sudden drop in sunlight causes changes in the ionosphere<\/strong>, creating waves that ripple through this atmospheric layer.<\/li>\n<li>It will measure changes in <strong>electric and magnetic fields, density, and temperature<\/strong>.<\/li>\n<li>This launch will take place at the <strong>White Sands Missile Range in New Mexico<\/strong>, with a specific focus on the ionosphere.<\/li>\n<li>According to NASA, the ionosphere&#8217;s temperature and density are projected to decrease during the eclipse, resulting in a wave-like disturbance that has the potential to disrupt GPS and other satellite communications.\u00a0<\/li>\n<\/ul>\n<h3><strong>The process:<\/strong><\/h3>\n<ul>\n<li>The rockets will be <strong>positioned just outside the path of annularity<\/strong>, where the Moon moves directly in front of the Sun. Each rocket will deploy <strong>four small scientific instruments<\/strong> designed to record changes in electric and magnetic fields, density, and temperature.<\/li>\n<li>NASA&#8217;s goal is to achieve the first-ever simultaneous measurements from multiple locations in the ionosphere during a solar eclipse.<\/li>\n<li>Rockets can be launched precisely at the right moment and can investigate lower altitudes inaccessible to satellites.<\/li>\n<li>Sounding rockets were chosen by the team due to their ability to <strong>pinpoint and measure specific regions <\/strong>of space with great accuracy.<\/li>\n<li>These rockets can also record changes occurring at various altitudes as they ascend and descend from suborbital flights.<\/li>\n<li>The rockets will <strong>gather data<\/strong> at <strong>altitudes ranging from 45 to 200 miles<\/strong> (70 to 325 kilometres) <strong>above the Earth&#8217;s surface<\/strong> along their flight path.<\/li>\n<\/ul>\n<hr \/>\n<h3>Q1: What is ionosphere?<\/h3>\n<p>The ionosphere is a region of Earth&#8217;s upper atmosphere that contains a high concentration of ions and free electrons. It starts approximately 48 kilometers above the Earth&#8217;s surface and extends upwards to several hundred miles (about 1,000 kilometers). The ionosphere plays a crucial role in various atmospheric and radio propagation phenomena, including the reflection and refraction of radio waves.<\/p>\n<p><strong>Source: <\/strong><a href=\"https:\/\/www.hindustantimes.com\/science\/indianorigin-nasa-scientist-to-lead-rocket-mission-to-ring-of-fire-eclipse-explained-101696671474700.html\" target=\"_blank\" rel=\"nofollow noopener\"><u>Indian-origin NASA scientist to lead rocket mission to\u2018ring of fire\u2019 eclipse. Explained<\/u><\/a><br \/>\n\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Atmospheric Perturbations around the Eclipse Path (APEP) mission to know how the upper atmosphere will change during the eclipse, especially the moment when there would be a sudden reduction in light.<\/p>\n","protected":false},"author":5,"featured_media":15645,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-15644","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/15644","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=15644"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/15644\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/15645"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=15644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=15644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=15644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}