{"id":125900,"date":"2021-08-13T16:11:36","date_gmt":"2021-08-13T10:41:36","guid":{"rendered":"https:\/\/blog.forumias.com\/?p=125900"},"modified":"2021-08-16T12:09:37","modified_gmt":"2021-08-16T06:39:37","slug":"why-isros-launch-of-earth-watching-satellite-failed","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/why-isros-launch-of-earth-watching-satellite-failed\/","title":{"rendered":"Why ISRO\u2019s launch of Earth-watching satellite failed?"},"content":{"rendered":"<p><strong>Source<\/strong>: <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/epaper.livemint.com\/Home\/ShareArticle?OrgId=1383b333caa&amp;imageview=0\">Mint<\/a>,<a style=\"color: #0000ff;\" href=\"https:\/\/indianexpress.com\/article\/explained\/isro-eos-o3-satellite-gslv-rocket-mission-malfunction-explained-7449977\/\"> India Express<\/a>, <a style=\"color: #0000ff;\" href=\"https:\/\/epaper.thehindu.com\/Home\/ShareArticle?OrgId=G228SB6EQ.1&amp;imageview=0\">The Hindu<\/a><\/span><\/p>\n<h5><strong>What is the news?<\/strong><\/h5>\n<p>Recently, ISRO&#8217;s attempt to put EOS-03 satellite using GSLV-F10 into the orbit failed.<\/p>\n<h5><strong>What went wrong?<\/strong><\/h5>\n<p>The <strong>upper stage<\/strong>, powered by a cryogenic engine fuelled by liquid hydrogen and liquid oxygen at very low temperatures, <strong>failed to ignite<\/strong>. The rocket lost the power to carry on &amp; most likely fell off somewhere in the Andaman Sea.<\/p>\n<h5><strong>Cryogenic stage<\/strong><\/h5>\n<p>This stage uses a cryogenic engine to generate thrust to reach the desired location in space.<\/p>\n<ul>\n<li>Cryogenic engine uses <strong>liquid oxygen<\/strong> and <strong>liquid hydrogen<\/strong> which takes rocket into the orbit. It is <strong>more efficient than solid stage <\/strong>and<strong> liquid stage<\/strong> since it generates more thrust and higher specific impulse.<\/li>\n<\/ul>\n<h5><strong>Challenges in cryogenic stage<\/strong><\/h5>\n<p>Cryogenic stage is very challenging because it involves a very complex system.<\/p>\n<ul>\n<li><strong>Maintenance of very low temperature<\/strong>: The fuel (liquid oxygen and liquid hydrogen) needs to be kept at very low temperatures. The fuel is then pumped by using turbo pumps running at around 40000 rpm.<\/li>\n<li><strong>Complex ground support system needed<\/strong>: It also requires complex ground support system, making Cryogenic stage a challenging procedure.<\/li>\n<\/ul>\n<p><strong><span style=\"text-decoration: underline;\">Note<\/span>: GSLV Mk-II<\/strong> and <strong>GSLV Mk-III<\/strong> both uses cryogenic engine while GSLV Mk-III \u00a0uses an indigenously-developed cryogenic engine in the upper stage.<\/p>\n<h5><strong>Impact\u00a0<\/strong><\/h5>\n<ul>\n<li><strong>On future missions<\/strong>: Missions like <strong>Gaganyaan<\/strong> and\u00a0<strong>Chandrayaan-3<\/strong> will be launched on GSLV Mk-III, which is more advanced version of the GSLV rocket designed to carry much heavier payloads into space. The cryogenic engine used in GSLV Mk-III, called <strong>CE20<\/strong>, uses a different process to burn fuel which is simple and ISRO scientists have a much better grip on its technology. Therefore, it might not directly impact the schedule of Gaganyaan or Chandrayaan-2<\/li>\n<li><strong>On NISAR mission<\/strong>&#8211; It is a collaboration between <strong>NASA and ISRO<\/strong> for a joint earth-observation satellite. It is the most important mission till date, involving the GSLV Mk-II rocket. The recent failure is a setback to this mission, and is likely to force a thorough investigation into the cryogenic stage of the GSLV Mk-II rocket.<\/li>\n<\/ul>\n<p><span style=\"text-decoration: underline;\"><strong>Terms to know<\/strong><\/span>:<\/p>\n<ul>\n<li><span style=\"color: #0000ff;\"><strong><a style=\"color: #0000ff;\" href=\"https:\/\/forumias.com\/blog\/eos-03-mission-couldnt-be-accomplished-due-to-performance-anomaly-isro\/#About_EOS-03\" target=\"_blank\" rel=\"noopener\">EOS-03<\/a><\/strong><\/span><\/li>\n<li><span style=\"color: #0000ff;\"><strong><a style=\"color: #0000ff;\" href=\"https:\/\/forumias.com\/blog\/behind-chandrayaan-2s-gslv-mk-iii-rocket-that-developed-a-glitch\/\" target=\"_blank\" rel=\"noopener\">GSLV Mk-III<\/a><\/strong><\/span><\/li>\n<li><span style=\"color: #0000ff;\"><strong><a style=\"color: #0000ff;\" href=\"https:\/\/forumias.com\/blog\/gaganyaan-mission\/\">Gaganyaan<\/a><\/strong><\/span><\/li>\n<li><span style=\"color: #0000ff;\"><strong><a style=\"color: #0000ff;\" href=\"https:\/\/forumias.com\/blog\/nisar-satellite-for-observing-earths-surface\/\" target=\"_blank\" rel=\"noopener\">NISAR<\/a><\/strong><\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Source: Mint, India Express, The Hindu What is the news? Recently, ISRO&#8217;s attempt to put EOS-03 satellite using GSLV-F10 into the orbit failed. What went wrong? The upper stage, powered by a cryogenic engine fuelled by liquid hydrogen and liquid oxygen at very low temperatures, failed to ignite. The rocket lost the power to carry&hellip; <a class=\"more-link\" href=\"https:\/\/forumias.com\/blog\/why-isros-launch-of-earth-watching-satellite-failed\/\">Continue reading <span class=\"screen-reader-text\">Why ISRO\u2019s launch of Earth-watching satellite failed?<\/span><\/a><\/p>\n","protected":false},"author":10330,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[1566,1738,9],"tags":[9068,9067,706,9066,8992],"class_list":["post-125900","post","type-post","status-publish","format-standard","hentry","category-daily-factly-articles","category-science-and-technology-daily-factly-articles","category-public","tag-cryogenic-engine","tag-eos-03-satellite","tag-gslv-mk-iii","tag-satellite-technology","tag-space-technology","entry"],"jetpack_featured_media_url":"","views":{"total":0,"cached_at":"","cached_date":1700534064},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/125900","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/users\/10330"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=125900"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/125900\/revisions"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=125900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=125900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=125900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}