{"id":8237,"date":"2014-07-03T22:26:43","date_gmt":"2014-07-04T02:26:43","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=8237"},"modified":"2014-07-03T22:26:43","modified_gmt":"2014-07-04T02:26:43","slug":"isee-3-engines-fired-successfully","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=8237","title":{"rendered":"ISEE-3 engines fired successfully"},"content":{"rendered":"<p>Congratulations to the\u00a0<a href=\"http:\/\/spacecollege.org\/isee3\/\" target=\"_d\">ISEE-3 Reboot Project<\/a><span style=\"color: #000000;\">\u00a0team on successfully firing the thrusters of the 36 year old\u00a0<a style=\"color: #660000;\" href=\"http:\/\/en.wikipedia.org\/wiki\/International_Cometary_Explorer\" target=\"_d\">International Cometary Explorer<\/a>\u00a0to spin it back up:<\/span><\/p>\n<ul>\n<li>\u00a0<a href=\"http:\/\/spacecollege.org\/isee3\/isee-3-engines-fired-for-spin-up.html\" target=\"_d\">ISEE-3 Engines Fired For Spin-Up &#8211; Space College<\/a><\/li>\n<li><a href=\"http:\/\/spacecollege.org\/isee3\/additional-isee-3-spin-up-confirmation.html\" target=\"_d\">Additional ISEE-3 Spin-up Confirmation &#8211; Space College<\/a><\/li>\n<li><a href=\"http:\/\/spacecollege.org\/isee3\/isee-3-current-location-3-july-2014.html\" target=\"_d\">ISEE-3 Current Location 3 July 2014 &#8211; Space College<\/a><\/li>\n<\/ul>\n<p>From Wednesday:<\/p>\n<p style=\"padding-left: 30px;\"><em>Today we fired the A and B thrusters on ISEE-3 to perform a spin-up burn. Preliminary results confirm the burn and a change in rotation. Spin rate was originally 19.16 rpm. It is now at 19.76 rpm. The original mission specifications call for 19.75 +\/- 0.2 rpm- so we are exactly where we wanted to be.<\/em><\/p>\n<p style=\"padding-left: 30px;\"><em>We are now collecting telemetry in advance of our next DSN pass and our ATP-3 review with NASA. The earliest we expect to make our Trajectory Correction Maneuver is next week.<\/em><\/p>\n<p style=\"padding-left: 30px;\"><em>All in all, a very good day.<\/em><\/p>\n<p>See previous posts <a href=\"http:\/\/hobbyspace.com\/Blog\/?p=8184\" target=\"_blank\">here<\/a> and <a href=\"http:\/\/hobbyspace.com\/Blog\/?p=8058\" target=\"_blank\">here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Congratulations to the\u00a0ISEE-3 Reboot Project\u00a0team on successfully firing the thrusters of the 36 year old\u00a0International Cometary Explorer\u00a0to spin it back up: \u00a0ISEE-3 Engines Fired For Spin-Up &#8211; Space College Additional ISEE-3 Spin-up Confirmation &#8211; Space College ISEE-3 Current Location 3 July 2014 &#8211; Space College From Wednesday: Today we fired the A and B thrusters &hellip; <a href=\"https:\/\/hobbyspace.com\/Blog\/?p=8237\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">ISEE-3 engines fired successfully<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[35,31,32],"tags":[],"class_list":["post-8237","post","type-post","status-publish","format-standard","hentry","category-diy-space","category-solar-science","category-space-radio"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-28R","jetpack-related-posts":[{"id":8184,"url":"https:\/\/hobbyspace.com\/Blog\/?p=8184","url_meta":{"origin":8237,"position":0},"title":"ISEE-3 Reboot Project &#8211; preparing for first thruster firing","author":"TopSpacer","date":"June 25, 2014","format":false,"excerpt":"The\u00a0ISEE-3 Reboot Project\u00a0is making progress towards resurrecting the\u00a0International Cometary Explorer\u00a0from its decades long hiatus in orbit around the sun. (See previous posts on the ISEE-3 reboot such as\u00a0here and here.)\u00a0Here is the news from yesterday:\u00a0ISEE-3 Status 24 June 2014: We Almost Did The Spin-up Burn - Space College During our\u2026","rel":"","context":"In &quot;DIY space&quot;","block_context":{"text":"DIY space","link":"https:\/\/hobbyspace.com\/Blog\/?cat=35"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":8690,"url":"https:\/\/hobbyspace.com\/Blog\/?p=8690","url_meta":{"origin":8237,"position":1},"title":"ISEE-3 project update and plans","author":"TopSpacer","date":"August 29, 2014","format":false,"excerpt":"Dennis Wingo gives an update on the ISEE-3 reboot satellite\u00a0\u00a0project, including what it accomplished and what they hope to do next\u00a0:\u00a0ISEE-3 Post Lunar Flyby Status and Modification of Mission Goals - \u00a0denniswingo Mission Status Communication with the ISEE-3 satellite was successfully re-established with the goal of commanding the satellite to\u2026","rel":"","context":"In &quot;DIY space&quot;","block_context":{"text":"DIY space","link":"https:\/\/hobbyspace.com\/Blog\/?cat=35"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":8510,"url":"https:\/\/hobbyspace.com\/Blog\/?p=8510","url_meta":{"origin":8237,"position":2},"title":"ISEE-3 citizen science mission","author":"TopSpacer","date":"August 7, 2014","format":false,"excerpt":"Since my\u00a0last post on\u00a0the\u00a0ISEE-3 Reboot Project, the team determined that it was impossible to restart the propulsion system\u00a0due to the absence of the nitrogen pressurant gas needed to force fuel into the thrusters. They spacecraft therefore cannot be put into an orbit in the Earth-Moon system and will instead continue\u2026","rel":"","context":"In &quot;Solar Science&quot;","block_context":{"text":"Solar Science","link":"https:\/\/hobbyspace.com\/Blog\/?cat=31"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":8324,"url":"https:\/\/hobbyspace.com\/Blog\/?p=8324","url_meta":{"origin":8237,"position":3},"title":"ISEE-3 Reboot Project: Update on thruster debugging with crowd-sourced expertise","author":"TopSpacer","date":"July 16, 2014","format":false,"excerpt":"I\u00a0posted\u00a0earlier that the reports that the\u00a0ISEE-3 Reboot Project\u00a0had given up on\u00a0restarting the propulsion system\u00a0were premature. Project member Dennis Wingo gives a detailed account of the crowd-sourced investigation\u00a0into what is going on with the thrusters and into\u00a0possible solutions to the failure to get substantial thrust from them:\u00a0We Are Borg: Crowdsourced ISEE-3\u2026","rel":"","context":"In &quot;DIY space&quot;","block_context":{"text":"DIY space","link":"https:\/\/hobbyspace.com\/Blog\/?cat=35"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":8058,"url":"https:\/\/hobbyspace.com\/Blog\/?p=8058","url_meta":{"origin":8237,"position":4},"title":"ISEE-3 Reboot Project update","author":"TopSpacer","date":"June 8, 2014","format":false,"excerpt":"The\u00a0ISEE-3 Reboot Project\u00a0(see the recent\u00a0post\u00a0ISEE-3 Reboot Project takes command of the spacecraft) continues to make progress in the effort to resurrect and re-target NASA's\u00a0International Sun-Earth Explorer (ISEE-3) spacecraft, launched in 1978 to study the earth's magnetosphere but re-targeted to study two comets. \u00a0the Reboot Project will try to return the\u2026","rel":"","context":"In &quot;DIY space&quot;","block_context":{"text":"DIY space","link":"https:\/\/hobbyspace.com\/Blog\/?cat=35"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/CLPG15HXkv8\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":7969,"url":"https:\/\/hobbyspace.com\/Blog\/?p=7969","url_meta":{"origin":8237,"position":5},"title":"ISEE-3 Reboot Project takes command of the spacecraft","author":"TopSpacer","date":"May 29, 2014","format":false,"excerpt":"The\u00a0ISEE-3 Reboot Project\u00a0(see earlier post)\u00a0is now talking with the spacecraft : We Are Now In Command of the ISEE-3 Spacecraft The ISEE-3 Reboot Project is pleased to announce that our team has established two-way communication with the ISEE-3 spacecraft and has begun commanding it to perform specific functions. Over the\u2026","rel":"","context":"In &quot;DIY space&quot;","block_context":{"text":"DIY space","link":"https:\/\/hobbyspace.com\/Blog\/?cat=35"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/8237","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8237"}],"version-history":[{"count":1,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/8237\/revisions"}],"predecessor-version":[{"id":8238,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/8237\/revisions\/8238"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8237"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8237"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}