{"id":854,"date":"2009-06-02T23:05:00","date_gmt":"2009-06-02T23:05:00","guid":{"rendered":"http:\/\/nettelhorst.com\/blog1\/2009\/06\/02\/using-pulsars-for-a-gps-in-space\/"},"modified":"2009-06-02T23:05:00","modified_gmt":"2009-06-02T23:05:00","slug":"using-pulsars-for-a-gps-in-space","status":"publish","type":"post","link":"https:\/\/nettelhorst.com\/blog1\/2009\/06\/02\/using-pulsars-for-a-gps-in-space\/","title":{"rendered":"Using Pulsars for a GPS in Space"},"content":{"rendered":"<p>Bartolome Coll and Albert Tarantola have proposed using pulsars &#8220;<a href=\"http:\/\/arxiv.org\/abs\/0905.4121\">To Define Space-Time Co-ordinates<\/a>.&#8221;  In essence, a GPS system for spacecraft in the solar system and beyond.  The summary of their paper, published at arxiv.org, is summarized this way:<\/p>\n<blockquote><p>Fully relativistic coordinates have been proposed for (relativistically) running a &#8220;GPS&#8221; system. These coordinates are the arrival times of the light signals emitted by four &#8220;satellites&#8221; (clocks). Replacing the signals emitted by four controlled clocks by the signals emitted by four pulsars defines a coordinate system with lower accuracy, but valid across the whole Solar System. We here precisely define this new coordinate system, by choosing four particular pulsars and a particular event as the origin of the coordinates. <\/p><\/blockquote>\n<p>The full paper may be downloaded from the arxiv.org site. <\/p>\n<p>Via <a href=\"http:\/\/www.geekpress.com\/\">Geekpress.com<\/a>.<\/p>\n<div class='kindleWidget kindleLight' ><img src=\"https:\/\/nettelhorst.com\/blog1\/wp-content\/plugins\/send-to-kindle\/media\/white-15.png\" \/><span>Send to Kindle<\/span><\/div>","protected":false},"excerpt":{"rendered":"<p>Bartolome Coll and Albert Tarantola have proposed using pulsars &#8220;To Define Space-Time Co-ordinates.&#8221; In essence, a GPS system for spacecraft in the solar system and beyond. The summary of their paper, published at arxiv.org, is summarized this way: Fully relativistic &hellip; <a class=\"more-link\" href=\"https:\/\/nettelhorst.com\/blog1\/2009\/06\/02\/using-pulsars-for-a-gps-in-space\/\">Continue reading <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":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_s2mail":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/nettelhorst.com\/blog1\/wp-json\/wp\/v2\/posts\/854"}],"collection":[{"href":"https:\/\/nettelhorst.com\/blog1\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nettelhorst.com\/blog1\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nettelhorst.com\/blog1\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nettelhorst.com\/blog1\/wp-json\/wp\/v2\/comments?post=854"}],"version-history":[{"count":0,"href":"https:\/\/nettelhorst.com\/blog1\/wp-json\/wp\/v2\/posts\/854\/revisions"}],"wp:attachment":[{"href":"https:\/\/nettelhorst.com\/blog1\/wp-json\/wp\/v2\/media?parent=854"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nettelhorst.com\/blog1\/wp-json\/wp\/v2\/categories?post=854"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nettelhorst.com\/blog1\/wp-json\/wp\/v2\/tags?post=854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}