Japan\u2019s HTV-5 cargo vehicle has departed the International Space Station (ISS) on Monday ahead of a fiery plunge back to Earth. The spacecraft \u2013 which initially suffered from an ISS-related release failure \u2013 delivered vital supplies both for the crew and the Station itself during its mission, with its final role now involving a cargo of ISS trash that was disposed of during its destructive re-entry on Tuesday.<\/p>\n
HTV-5:<\/p>\n
HTV-5 was launched to the ISS in mid-August, lofted by the H-IIB rocket from the Tanegashima Space Center in Southern Japan.<\/p>\n
![\"2015-09-28-161338\"](\"https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2015\/09\/2015-09-28-161338-350x242.jpg\")
Following a successful arriving at the ISS, HTV-5\u2019s eight rack bays \u2013 all of which were filled with HTV Resupply Racks (HRRs), delivered crucial supplies such as food, water, hygiene items, clothing, spare parts, personal items, and scientific experiments for the ISS crew.<\/p>\n
Included in HTV-5\u2019s manifest was 600 liters of potable water as well as food, crew commodities, system components, and science experiments \u2013 totaling one ton of unpressurized cargo.<\/p>\n
Also aboard were various nanosatellites used for space research, known as CubeSats, including 14 Planet Labs Dove satellites, which will capture images of Earth for use in humanitarian, environmental and commercial applications.<\/p>\n
HTV-5\u2019s the primary external piece of equipment for this mission is the CALorimetric Electron Telescope (CALET).<\/p>\n
CALET rode on the HTV\u2019s Exposed Pallet (EP) and was transferred by the Kibo\u2019s robotic arm (JEM Remote Manipulator System: JEMRMS) and installed to the Kibo\u2019s Exposed Facility (EF).<\/p>\n
With HTV-5\u2019s cargo fully transferred \u2013 and trash items loaded into its place \u2013 the Common Berthing Mechanism (CBM) hatches between the vehicle and the ISS were closed, in preparation for HTV-5\u2019s departure from the Station on Monday.<\/p>\n
Rocket building kits (adsbygoogle = window.adsbygoogle || []).push({});<\/p>\n Over the following few hours, the SSRMS manuvered HTV-5 to the release position around 30 feet below the ISS, following which, with both ISS and HTV-5 thrusters inhibited,<\/p>\n The SSRMS ungrappled of HTV-5 was next, to signify its release from the ISS.<\/p>\n However, the SSRMS noted a safing event, resulting in no release. It was believed to be an issue with the Robotic Work Station (RWS) in the Cupola module, resulting in the crew moving to the back up RWS in the Lab part of the Station.<\/p>\n Expedition 45 Flight Engineer Kimiya Yui of JAXA, backed up by NASA Flight Engineer Kjell Lindgren, commanded then station\u2019s Canadarm2 robotic arm to allow the spacecraft to bid farewell to the orbital outpost.<\/p>\n In total \u2013 per the timeline \u2013 four departure burns were called for, known as ISS Departure Maneuver (IDM) -1 and -2, followed by Descending Maneuver (DSM) -1 and -2, following which ISS and HTV-5 integrated operations officially ended.<\/p>\n HTV-5 conducted a series of de-orbit burns for a destructive re-entry over the Pacific Ocean on Tuesday.<\/p>\n Click here for HTV News Articles: http:\/\/www.nasaspaceflight.com\/tag\/htv\/<\/p>\n HTV-5\u2019s scientific utility will continue even after its destruction however, since two re-entry payloads werer stowed inside HTV-5 to gather data to compare to computer models, in order to improve knowledge of re-entry characteristics.<\/p>\n This was the fifth mission of an HTV to the ISS, following in the footsteps of four HTVs having flown to the Station previously \u2013 HTV-1 from September-November 2009, HTV-2 from January-March 2011, HTV-3 from July-September 2012, and HTV-4 August-September 2013.<\/p>\n (Images via L2, JAXA and NASA).<\/p>\n (NSF and L2 are providing full high level space flight coverage, available no where else on the internet, from Orion and SLS to ISS and COTS\/CRS\/CCDEV, to European, Japanese and Russian vehicles).<\/p>\n (Click here: http:\/\/www.nasaspaceflight.com\/l2\/ \u2013 to view how you can access the best space flight content on the entire internet)<\/p>\n","protected":false},"excerpt":{"rendered":" Japan\u2019s HTV-5 cargo vehicle has departed the International Space Station (ISS) on Monday ahead of a fiery plunge back to Earth. The spacecraft \u2013 which initially suffered from an ISS-related release failure \u2013 delivered vital supplies both for the crew and the Station itself during its mission, with its final role now involving a cargo […]<\/p>\n","protected":false},"author":1,"featured_media":30325,"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":[1839,233],"class_list":["post-39234","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-htv","tag-iss"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/39234"}],"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=39234"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/39234\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media\/30325"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=39234"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=39234"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=39234"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"2015-09-28-162220\"](\"https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2015\/09\/2015-09-28-162220-350x256.jpg\")
Following CBM vestibule depressurization and removal of all 16 CBM bolts (in four stages of four bolts).<\/p>\n![\"2015-09-28-162739\"](\"https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2015\/09\/2015-09-28-162739-350x202.jpg\")
Cupola then showed it was back to working order, but the rest of the release window was expected to suffer from ratty comm, meaning a decision to move to the next window \u2013 one orbit later \u2013 was the best path forward, which also allowed for further evaluations into the original issue.<\/p>\n![\"2015-09-28-175649\"](\"https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2015\/09\/2015-09-28-175649-350x255.jpg\")
After a period of 90 seconds, the ISS crew sent the retreat command to HTV-5, which initiated the departure sequence burns. A few hours after its release, the cargo ship will fire its engines to begin a controlled deorbit and entry through Earth\u2019s atmosphere, where it will burn up over the Pacific Ocean.<\/p>\n