{"id":590,"date":"2019-06-30T09:48:05","date_gmt":"2019-06-30T09:48:05","guid":{"rendered":"https:\/\/beta.research.ece.ncsu.edu\/osl\/?p=590"},"modified":"2019-06-30T09:57:11","modified_gmt":"2019-06-30T09:57:11","slug":"initial-orbit-determination-using-doppler-shift-of-fraunhofer-lines","status":"publish","type":"post","link":"https:\/\/research.ece.ncsu.edu\/osl\/2019\/06\/30\/initial-orbit-determination-using-doppler-shift-of-fraunhofer-lines\/","title":{"rendered":"Initial orbit determination   using Doppler shift   of Fraunhofer lines"},"content":{"rendered":"<p><strong>Abstract<\/strong>: Techniques for tracking objects in low Earth orbit include line-of-sight angle measurements and range measurements using RADAR or laser reflection. However, active ranging techniques are less effective for higher orbits because of the greater signal loss from distant targets. In this paper, using computer simulation, we show how incorporating measurements of the Doppler shift of Solar Fraunhofer lines can improve initial orbit determination. Results indicate that for Doppler measurement errors of less than 5m\/s, prediction accuracies for some orbital configurations can exceed Gooding\u2019s angles-only method, while using only two<br \/>\nobservations of the target.<\/p>\n<div class=\"csl-bib-body\">\n<div class=\"csl-entry\">\n<div class=\"csl-right-inline\">B. Pantalone and M. W. Kudenov, &#8220;Initial orbit determination using Doppler shift of Fraunhofer lines,&#8221; Celest Mech Dyn Astr <b>130<\/b>(12), 80 (2018).<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Abstract: Techniques for tracking objects in low Earth orbit include line-of-sight angle measurements and range measurements using RADAR or laser reflection. However, active ranging techniques&#8230;<\/p>\n","protected":false},"author":103,"featured_media":591,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-590","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research-papers"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/posts\/590","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/users\/103"}],"replies":[{"embeddable":true,"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/comments?post=590"}],"version-history":[{"count":2,"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/posts\/590\/revisions"}],"predecessor-version":[{"id":600,"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/posts\/590\/revisions\/600"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/media\/591"}],"wp:attachment":[{"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/media?parent=590"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/categories?post=590"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/research.ece.ncsu.edu\/osl\/wp-json\/wp\/v2\/tags?post=590"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}