{"id":134028,"date":"2024-12-06T16:24:26","date_gmt":"2024-12-06T09:24:26","guid":{"rendered":"https:\/\/hotvideos24.online\/?p=134028"},"modified":"2024-12-06T16:24:26","modified_gmt":"2024-12-06T09:24:26","slug":"two-european-satellites-launch-on-mission-to-blot-out-the-sun-for-science","status":"publish","type":"post","link":"https:\/\/hotvideos24.online\/?p=134028","title":{"rendered":"Two European satellites launch on mission to blot out the Sun\u2014for science"},"content":{"rendered":"<p> <script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<\/p>\n<div>\n<p>Two spacecraft developed by the European Space Agency launched on top of an Indian rocket Thursday, kicking off a mission to test novel formation flying technologies and observe a rarely-seen slice of the Sun&#8217;s ethereal corona.<\/p>\n<p>ESA&#8217;s Proba-3 mission is purely experimental. The satellites are loaded with sophisticated sensors and ranging instruments to allow the two spacecraft to orbit the Earth in lockstep with one another. Proba-3 will attempt to achieve millimeter-scale precision, several orders of magnitude better than the requirements for a spacecraft closing in for docking at the International Space Station.<\/p>\n<p>&#8220;In a nutshell, it\u2019s an experiment in space to demonstrate a new concept, a new technology that is technically challenging,&#8221; said Damien Galano, Proba-3&#8217;s project manager.<\/p>\n<p>The two Proba-3 satellites launched from India at 5:34 am EST (10:34 UTC) Thursday, riding a Polar Satellite Launch Vehicle (PSLV). The PSLV released Proba-3 into a stretched-out orbit with a low point approximately 356 miles (573 kilometers), a high point of 37,632 miles (60,563 kilometers), and an inclination of 59 degrees to the equator.<\/p>\n<figure class=\"ars-wp-img-shortcode id-2065200 align-fullwidth\">\n<div>\n                        <img width=\"900\" height=\"1231\" src=\"https:\/\/cdn.arstechnica.net\/wp-content\/uploads\/2024\/12\/028A3287.jpg\" class=\"fullwidth full\" alt=\"\" decoding=\"async\" loading=\"lazy\" srcset=\"https:\/\/cdn.arstechnica.net\/wp-content\/uploads\/2024\/12\/028A3287.jpg 900w, https:\/\/cdn.arstechnica.net\/wp-content\/uploads\/2024\/12\/028A3287-640x875.jpg 640w, https:\/\/cdn.arstechnica.net\/wp-content\/uploads\/2024\/12\/028A3287-768x1050.jpg 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\"\/>\n                  <\/div><figcaption>\n<div class=\"caption font-impact mb-4 mt-2 inline-flex flex-row items-stretch gap-1 text-base leading-tight text-gray-300\">\n<div class=\"caption-content\">\n      India&#8217;s PSLV accelerates through the speed of sound shortly after liftoff with the Proba-3 mission Thursday.<\/p>\n<p>              <span class=\"caption-credit mt-2 text-xs\"><br \/>\n          Credit:<\/p>\n<p>                      <a class=\"caption-credit-link text-gray-400 hover:text-gray-300\" href=\"https:\/\/www.isro.gov.in\/media_isro\/image\/index\/PSLVC59Proba3\/post_launch\/028A3287.JPG\" target=\"_blank\" rel=\"noopener\"><\/p>\n<p>          ISRO<\/p>\n<p>                      <\/a><br \/>\n                  <\/span>\n          <\/div>\n<\/p><\/div>\n<\/figcaption><\/figure>\n<p>After initial checkouts, the <a href=\"https:\/\/digitalcommons.usu.edu\/cgi\/viewcontent.cgi?article=4707&amp;context=smallsat\">two Proba-3 satellites<\/a>, each smaller than a compact car, will separate from one another to begin their tech demo experiments early next year. The larger of the two satellites, known as the Coronagraph spacecraft, carries a suite of science instruments to image the Sun&#8217;s corona, or outer atmosphere. The smaller spacecraft, named Occulter, hosts navigation sensors and low-impulse thrusters to help it maneuver into position less than 500 feet (150 meters) from its Coronagraph companion.<\/p>\n<p>From the point of view of the Coronagraph spacecraft, this is just the right distance for a 4.6-foot (1.4-meter) disk mounted to Proba-3&#8217;s Occulter spacecraft to obscure the surface of the Sun. The occultation will block the Sun&#8217;s blinding glare, and cast a shadow just 3 inches (8 centimeters) onto the Coronagraph satellite,\u00a0revealing the wispy, super-heated gases that make up the solar corona.<\/p>\n<\/p><\/div>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<br \/><div data-type=\"_mgwidget\" data-widget-id=\"1660802\">\r\n<\/div>\r\n<script>(function(w,q){w[q]=w[q]||[];w[q].push([\"_mgc.load\"])})(window,\"_mgq\");\r\n<\/script>\r\n<br \/>\n<br \/><a href=\"https:\/\/arstechnica.com\/space\/2024\/12\/two-european-satellites-launch-on-mission-to-blot-out-the-sun-for-science\/\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Two spacecraft developed by the European Space Agency launched on top of an Indian rocket Thursday, kicking off a mission to test novel formation flying technologies and observe a rarely-seen &hellip; <a href=\"https:\/\/hotvideos24.online\/?p=134028\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8628],"tags":[],"class_list":["post-134028","post","type-post","status-publish","format-standard","hentry","category-science","entry"],"_links":{"self":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/134028","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=134028"}],"version-history":[{"count":0,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/134028\/revisions"}],"wp:attachment":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=134028"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=134028"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=134028"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}