{"id":1804,"date":"2026-09-05T05:59:00","date_gmt":"2026-09-04T20:59:00","guid":{"rendered":"https:\/\/onepress.co.kr\/index.php\/briefing\/2026-09-05-india-eos05-geosynchronous-imaging-en\/"},"modified":"2026-09-05T05:59:00","modified_gmt":"2026-09-04T20:59:00","slug":"2026-09-05-india-eos05-geosynchronous-imaging-en","status":"publish","type":"briefing","link":"https:\/\/onepress.co.kr\/index.php\/briefing\/2026-09-05-india-eos05-geosynchronous-imaging-en\/","title":{"rendered":"India launches its first geosynchronous imaging satellite; EOS-05 is still raising orbit"},"content":{"rendered":"<p><strong>2026-09-05 05:59 KST<\/strong><\/p>\n<p>ISRO launched the 2,367 kg EOS-05 on GSLV-F17 on September 4 and placed it in the planned sub-geosynchronous transfer orbit. It is India\u2019s first imaging satellite designed for geosynchronous orbit and aims to revisit the same region rapidly for disaster and agricultural monitoring.<\/p>\n<p>A successful launch is not yet successful arrival in the final orbit or full instrument operation. EOS-05 must raise its orbit under its own power and complete commissioning before its first imagery and service status can be assessed.<\/p>\n<h2>What did the launch achieve?<\/h2>\n<p>GSLV-F17 lifted off from Sriharikota at 2:55 a.m. IST and released EOS-05 about 18 minutes later. The published nominal orbit was about 171 km by 31,026 km at 19.28 degrees inclination.<\/p>\n<h2>Why image from geosynchronous orbit?<\/h2>\n<p>A geosynchronous satellite can watch the same region for long periods, enabling rapid revisits of storms, fires and crops. The trade-off is distance and potentially lower spatial resolution than low-orbit satellites.<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/onepress.co.kr\/wp-content\/uploads\/2026\/09\/india-eos05-geosynchronous-imaging-en.png\" alt=\"India launches its first geosynchronous imaging satellite; EOS-05 is still raising orbit\" loading=\"lazy\" \/><figcaption class=\"op-briefing-image-caption\">This AI-generated image explains the topic; it is not a photograph of the actual event, observation, or experiment.<\/figcaption><\/figure>\n<h2>What is EOS-05 meant to do?<\/h2>\n<p>ISRO lists visible, infrared, multispectral and hyperspectral observations for agriculture, environment and disaster management. Actual cadence and quality await commissioning and data-policy details.<\/p>\n<h2>Why is this a milestone?<\/h2>\n<p>The predecessor EOS-03 was lost during its 2021 launch. Successful transfer-orbit insertion gives India another chance to establish geosynchronous imaging, but service has not started.<\/p>\n<h2>What should be checked next?<\/h2>\n<p>Orbit-raising completion, deployment status, instrument health and the first released images are the next milestones. Delivery speed to operational users will determine practical value.<\/p>\n<h2>Primary sources and independent checks<\/h2>\n<p><a href=\"https:\/\/www.isro.gov.in\/\" target=\"_blank\" rel=\"noopener noreferrer\">ISRO \uacf5\uc2dd \uc784\ubb34 \ud604\ud669<\/a><\/p>\n<p><a href=\"https:\/\/newsonair.gov.in\/isro-successfully-launches-earth-observation-satellite-eos-05-from-sriharikota\/\" target=\"_blank\" rel=\"noopener noreferrer\">\uc778\ub3c4 \uacf5\uc601\ubc29\uc1a1 Akashvani \ubc1c\uc0ac \ud655\uc778<\/a><\/p>\n<p><a href=\"https:\/\/www.space.com\/space-exploration\/launches-spacecraft\/gslv-mark-ii-eos-05-launch-first-indian-geo-earth-observing-satellite\" target=\"_blank\" rel=\"noopener noreferrer\">Space.com \ub3c5\ub9bd \ubc1c\uc0ac \ubcf4\ub3c4<\/a><\/p>\n<p><a href=\"https:\/\/www.business-standard.com\/india-news\/isro-eos-05-launch-gslv-f17-geosynchronous-imaging-satellite-126090400257_1.html\" target=\"_blank\" rel=\"noopener noreferrer\">Business Standard \ub3c5\ub9bd \ud655\uc778<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>ISRO placed the 2,367 kg EOS-05 into its transfer orbit. Launch success is separate from reaching operational orbit and commissioning the instruments.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-1804","briefing","type-briefing","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing\/1804","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing"}],"about":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/types\/briefing"}],"wp:attachment":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=1804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}