{"id":38013,"date":"2019-06-03T22:04:24","date_gmt":"2019-06-03T14:04:24","guid":{"rendered":"https:\/\/wp-productionenv-bjg9h2g2bgg5b8aa.southeastasia-01.azurewebsites.net\/news\/crs-17-dragon-returns-home-from-iss-mission\/"},"modified":"2019-06-03T22:04:24","modified_gmt":"2019-06-03T14:04:24","slug":"crs-17-dragon-returns-home-from-iss-mission","status":"publish","type":"post","link":"https:\/\/starpath.global\/news\/crs-17-dragon-returns-home-from-iss-mission\/","title":{"rendered":"CRS-17 Dragon returns home from ISS mission"},"content":{"rendered":"<p>SpaceX\u2019s CRS-17 Dragon spacecraft concluded the EOM (End Of Mission) phase of her mission following unberthing from the International Space Station (ISS) on Monday. Dragon\u2019s release from the Space Station Remote Manipulator System (SSRMS) occurred at 16:00 UTC, with splashdown in the Pacific Ocean around 21:10 UTC on Monday.\n<\/p>\n<p>The CRS-17 Dragon was launched on Falcon 9 B1056.1 last month.&nbsp; The booster also returned without issue, allowing it to be prepared for a future mission.<\/p>\n<p><iframe id=\"twitter-widget-1\" scrolling=\"no\" frameborder=\"0\" allowtransparency=\"true\" allowfullscreen=\"true\" class=\"\" style=\"position: static; visibility: visible; width: 0px; height: 0px; display: block; flex-grow: 1;\" title=\"X Post\" src=\"https:\/\/platform.twitter.com\/embed\/Tweet.html?creatorScreenName=NASASpaceflight&amp;dnt=true&amp;embedId=twitter-widget-1&amp;features=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%3D%3D&amp;frame=false&amp;hideCard=false&amp;hideThread=false&amp;id=1124568940917788673&amp;lang=en&amp;origin=https%3A%2F%2Fwww.nasaspaceflight.com%2F2019%2F06%2Fcrs-17-dragon-eom-homecoming%2F&amp;sessionId=df75fe7fc1d44b2d230f1fc0f77974419150d388&amp;siteScreenName=NASASpaceflight&amp;theme=light&amp;widgetsVersion=6a3ad42b224df%3A1778106238597&amp;width=550px\" data-gtm-yt-inspected-14=\"true\" data-gtm-yt-inspected-21=\"true\" data-tweet-id=\"1124568940917788673\"><\/iframe><\/p>\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\" data-twitter-extracted-i1783498597761448037=\"true\">\n<p lang=\"en\" dir=\"ltr\">Landed another one. Falcon 9 B1056.1 with her maiden launch and landing. What a view!! Infrared for the win!<\/p>\n<p>That&#8217;s 39 booster landings for those keeping count. <img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"\ud83d\ude0e\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/16.0.1\/svg\/1f60e.svg\"><img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"\ud83d\ude80\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/16.0.1\/svg\/1f680.svg\"> pic.twitter.com\/V7mq6qQYYg<\/p>\n<p>\u2014 Chris Bergin \u2013 NSF (@NASASpaceflight) May 4, 2019<\/p>\n<\/blockquote>\n<p>CRS-17 mission delivered 338 kilograms (745 pounds) of supplies and provisions for the space station\u2019s crew, 357 kilograms (787 lb) of hardware for the US and International segments of the station, 75 kilograms (165 lb) of computer equipment,&nbsp;10 kilograms (22 lb) of hardware to support EVAs&nbsp;and 11 kilograms (24 lb) of hardware that is being flown on behalf of the Russian Federal Space Agency, Roskosmos.<\/p>\n<p>Dragon\u2019s cargo includes components for the space station\u2019s new water storage system, filters for a new waste management system, wire harnesses and depressurization indicators that will be used to support future commercial crew flights and the POLARS system that will facilitate transportation of scientific experiments at low temperatures.<\/p>\n<\/p>\n<h4 class=\"widget-title penci-border-arrow\">See Also<\/h4>\n<ul>\n<li>CRS-17 EOM UPDATES<\/li>\n<li>SpaceX Missions Section<\/li>\n<li>L2 SpaceX Section<\/li>\n<li>Click here to Join L2<\/li>\n<\/ul>\n<p>Dragon\u2019s unpressurized Trunk contains hardware that will be mounted on the outside of the space station. This includes the Orbiting Carbon Observatory 3 (OCO-3) payload, which will use three spectrometers to measure the density and distribution of carbon dioxide in Earth\u2019s atmosphere.<\/p>\n<p>The Trunk also contained Space Test Program \u2013 Houston 6 (STP-H6), a package of eight technology development and demonstration payloads for the&nbsp;US Air Force\u2019s Space Test Program (STP). STP-H6 includes experiments that will test instruments for ionospheric and plasma research, demonstrating computing resources for in-orbit image processing, validating the use of modulated X-rays for communications and testing systems for future satellites.<\/p>\n<p>Rocket building kits<path d=\"M7.59009 18.59L9.00009 20L17.0001 12L9.00009 4L7.59009 5.41L14.1701 12\" style=\"animation: initial !important; background: initial !important; border: 0px !important; box-shadow: none !important; color: inherit !important; cursor: inherit !important; direction: inherit !important; display: inline !important; fill: currentcolor !important; filter: initial !important; float: none !important; margin: 0px !important; opacity: initial !important; outline: 0px !important; overflow: initial !important; padding: 0px !important; stroke: initial !important; transform: initial !important; vertical-align: initial !important; visibility: inherit !important;\"><\/path>Space Shuttle<path d=\"M7.59009 18.59L9.00009 20L17.0001 12L9.00009 4L7.59009 5.41L14.1701 12\" style=\"animation: initial !important; background: initial !important; border: 0px !important; box-shadow: none !important; color: inherit !important; cursor: inherit !important; direction: inherit !important; display: inline !important; fill: currentcolor !important; filter: initial !important; float: none !important; margin: 0px !important; opacity: initial !important; outline: 0px !important; overflow: initial !important; padding: 0px !important; stroke: initial !important; transform: initial !important; vertical-align: initial !important; visibility: inherit !important;\"><\/path>Astronomy<path d=\"M7.59009 18.59L9.00009 20L17.0001 12L9.00009 4L7.59009 5.41L14.1701 12\" style=\"animation: initial !important; background: initial !important; border: 0px !important; box-shadow: none !important; color: inherit !important; cursor: inherit !important; direction: inherit !important; display: inline !important; fill: currentcolor !important; filter: initial !important; float: none !important; margin: 0px !important; opacity: initial !important; outline: 0px !important; overflow: initial !important; padding: 0px !important; stroke: initial !important; transform: initial !important; vertical-align: initial !important; visibility: inherit !important;\"><\/path>\n<p>     (adsbygoogle = window.adsbygoogle || []).push({});<\/p>\n<p>After both payloads were removed for installation on the ISS, the robotic assets then<\/p>\n<p>Ahead of the return trip, Dragon was packed with downmass&nbsp;and the hatch closed. Robotic ground controllers then used the robotic arm to detach Dragon from the Earth-facing port of the Harmony module to maneuver Dragon into the release position.<\/p>\n<p>Dragon was unberthed by the Space Station Remote Manipulator System (SSRMS) at 12:35 UTC before being released from the robotic arm at 16:00 UTC.<\/p>\n<p>Once the LEE snares were released, the SSRMS was backed away from Dragon as the craft held its position at the 10 meter mark.<\/p>\n<p>Once the Station\u2019s arm was cleared to a safe distance, Dragon conducted a series of three small thruster firing departure burns that moves the capsule down the R-Bar (Radial Vector) and away from the International Space Station toward Earth (when viewed in relation to ISS orientation and Dragon movements with respect to Earth).<\/p>\n<p>During the initial stage of departure, Dragon was under the control of its own computer programming, with the Station crew and controllers at Mission Control Houston in Texas for NASA having primary control over the spacecraft.<\/p>\n<p>As Dragon pushed down the R-Bar, the largest of the three thruster departure burns imparted enough Delta Velocity (Delta-V) change to Dragon to push it outside of the approach ellipsoid.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" aria-describedby=\"caption-attachment-54368\" class=\"size-large wp-image-54368\" src=\"https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/01\/2018-01-13-104848-499x350.jpg\" alt=\"\" width=\"499\" height=\"350\" srcset=\"https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/01\/2018-01-13-104848-499x350.jpg 499w, https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/01\/2018-01-13-104848-350x245.jpg 350w, https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/01\/2018-01-13-104848.jpg 679w\" sizes=\"(max-width: 499px) 100vw, 499px\"><\/p>\n<p id=\"caption-attachment-54368\" class=\"wp-caption-text\">ISS departure zone<\/p>\n<p>The approach ellipsoid is a 4 km by 2 km oval-shaped region around the International Space Station that extends 2 km in front of and 2 kilometers behind the ISS along the velocity vector (V-Bar) and 1 km above and 1 km below the Station along the R-Bar.<\/p>\n<p>Once Dragon cleared the approach ellipsoid 1 km below the ISS, primary control of the vehicle shifted from NASA to SpaceX controllers in Hawthorne, California.<\/p>\n<p>Dragon conducted several hours of free flight activities as controllers at Mission Control SpaceX prepared the vehicle for the end of its mission.<\/p>\n<p>This included the closure of the Guidance Navigation and Control (GNC) bay door on Dragon, creating a perfect thermal protection seal around the entirety of Dragon for entry.<\/p>\n<p>SpaceX flight controllers at Hawthorne, California commanded Dragon\u2019s Draco thrusters to fire for 12 minutes and 53 seconds \u2013 retrograde \u2013 in the deorbit burn that enabled Dragon to slip out of orbit for its descent back to Earth.<\/p>\n<p>Following the deorbit burn, the umbilicals between Dragon and her external payload trunk were severed ahead of the trunk\u2019s separation from Dragon itself.<\/p>\n<p>Dragon then placed its heat shield out in front in preparation for Entry Interface (EI) \u2013 the moment Dragon reaches the first traces of Earth\u2019s upper atmosphere.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-54361\" class=\"size-full wp-image-54361\" src=\"https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/01\/2018-01-13-043511.jpg\" alt=\"\" width=\"1020\" height=\"520\" srcset=\"https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/01\/2018-01-13-043511.jpg 1020w, https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/01\/2018-01-13-043511-350x178.jpg 350w, https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/01\/2018-01-13-043511-630x321.jpg 630w, https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/01\/2018-01-13-043511-768x392.jpg 768w\" sizes=\"(max-width: 1020px) 100vw, 1020px\"><\/p>\n<p id=\"caption-attachment-54361\" class=\"wp-caption-text\">Dragon re-entry, via SpaceX<\/p>\n<p>Once EI occurred, Dragon\u2019s Thermal Protection System (TPS) protected it from the searing hot temperatures of reentry formed as the air molecules around Dragon are instantly heated and turned to plasma under the friction created by Dragon\u2019s high velocity.<\/p>\n<p>Dragon\u2019s primary heat shield, called PICA-X, is based on a proprietary variant of NASA\u2019s Phenolic Impregnated Carbon Ablator (PICA) material and is designed to protect Dragon during atmospheric re-entry.<\/p>\n<p>PICA-X is robust enough to protect Dragon not only during ISS return missions but also during high-velocity returns from Lunar and Martian destinations.<\/p>\n<p>Unlike the Dragon capsule, the Dragon trunk destructively burns up in Earth\u2019s atmosphere.<\/p>\n<p>Once safely through the plasma stage of reentry, Dragon\u2019s drogue parachutes deployed, followed by the main chutes designed to ease the vehicle to a splashdown in the Pacific Ocean for recovery.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-57478\" class=\"size-full wp-image-57478\" src=\"https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/08\/2018-08-03-121149.jpg\" alt=\"\" width=\"1553\" height=\"748\" srcset=\"https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/08\/2018-08-03-121149.jpg 1553w, https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/08\/2018-08-03-121149-350x169.jpg 350w, https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/08\/2018-08-03-121149-630x303.jpg 630w, https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/08\/2018-08-03-121149-768x370.jpg 768w, https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2018\/08\/2018-08-03-121149-1170x564.jpg 1170w\" sizes=\"(max-width: 1553px) 100vw, 1553px\"><\/p>\n<p id=\"caption-attachment-57478\" class=\"wp-caption-text\">Dragon splashdown<\/p>\n<p>Recovery is attained by three main recovery vessels which were positioned near Dragon\u2019s return location. The main recovery vehicle had already set sail earlier in the last few days.<\/p>\n<p>Fast recovery vessels deployed begin collecting Dragon\u2019s parachutes as recovery of the capsule itself was conducted by the primary recovery assets.<\/p>\n<p>Dragon\u2019s parachute-assisted splashdown usually occurs 410 miles southwest of Long Beach, California.<\/p>\n<p><iframe id=\"twitter-widget-2\" scrolling=\"no\" frameborder=\"0\" allowtransparency=\"true\" allowfullscreen=\"true\" class=\"\" style=\"position: static; visibility: visible; width: 0px; height: 0px; display: block; flex-grow: 1;\" title=\"X Post\" src=\"https:\/\/platform.twitter.com\/embed\/Tweet.html?creatorScreenName=NASASpaceflight&amp;dnt=true&amp;embedId=twitter-widget-2&amp;features=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%3D%3D&amp;frame=false&amp;hideCard=false&amp;hideThread=false&amp;id=1134929533117898752&amp;lang=en&amp;origin=https%3A%2F%2Fwww.nasaspaceflight.com%2F2019%2F06%2Fcrs-17-dragon-eom-homecoming%2F&amp;sessionId=df75fe7fc1d44b2d230f1fc0f77974419150d388&amp;siteScreenName=NASASpaceflight&amp;theme=light&amp;widgetsVersion=6a3ad42b224df%3A1778106238597&amp;width=550px\" data-gtm-yt-inspected-14=\"true\" data-gtm-yt-inspected-21=\"true\" data-tweet-id=\"1134929533117898752\"><\/iframe><\/p>\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\" data-twitter-extracted-i1783498597761448037=\"true\">\n<p lang=\"en\" dir=\"ltr\">NOTAM Hazard Area of #SpaceX CRS-17 Dragon C113.2 reentry for Monday 03 Jun in window between 21:30-22:00 UTC. Estimated splashdown and recovery by NRC Quest approximately 331km southwest of the Port of LA. https:\/\/t.co\/GDVgqX2Y0Y pic.twitter.com\/xymjZnGSuo<\/p>\n<p>\u2014 Raul (@Raul74Cz) June 1, 2019<\/p>\n<\/blockquote>\n<p>It will take about two days for Dragon to be brought back to the Port of Los Angeles for its cache of cargo and scientific experiments to be unloaded.<\/p>\n<p>The ISS crew spent the majority of the second half of Dragon\u2019s stay loading Dragon\u2019s pressurized capsule with key items to be returned to Earth, including numerous time-sensitive experiments, which will be the first items to be removed.<\/p>\n<p>Dragon will eventually take a road trip to SpaceX\u2019s test center at McGregor in Texas for the complete cargo removal.<\/p>\n<p>CRS-18 is the next Dragon mission to the ISS, currently scheduled for July.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SpaceX\u2019s CRS-17 Dragon spacecraft concluded the EOM (End Of Mission) phase of her mission following unberthing from the International Space Station (ISS) on Monday. Dragon\u2019s release from the Space Station Remote Manipulator System (SSRMS) occurred at 16:00 UTC, with splashdown in the Pacific Ocean around 21:10 UTC on Monday. The CRS-17 Dragon was launched on [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":29836,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[2],"tags":[2304,1395,316],"class_list":["post-38013","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-crs","tag-dragon","tag-spacex"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/38013"}],"collection":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/comments?post=38013"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/38013\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media\/29836"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=38013"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=38013"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=38013"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}