{"id":198990,"date":"2007-09-20T21:44:00","date_gmt":"2007-09-21T02:44:00","guid":{"rendered":"https:\/\/www.panix.com\/~msaroff\/40years\/2007\/09\/20\/ion-drives-for-spy-sats\/"},"modified":"2007-09-20T21:44:00","modified_gmt":"2007-09-21T02:44:00","slug":"ion-drives-for-spy-sats","status":"publish","type":"post","link":"https:\/\/www.panix.com\/~msaroff\/40years\/2007\/09\/20\/ion-drives-for-spy-sats\/","title":{"rendered":"Ion Drives for Spy Sats"},"content":{"rendered":"<p><a href=\"http:\/\/www.theregister.co.uk\/2007\/09\/17\/darpa_flexi_ion_drive_spy_sat_plan\/\">DARPA is looking at ion-drive spy satellites<\/a>.  Truth be told, this is not surprising.<\/p>\n<p>One of the limiting factors on many spy satellites is the amount of propellant available, and if you can use a very high impulse (rocket fuel economy) for station keeping and scheduled moves, you can either make a lighter vehicle, which means more for the same price, or one with much hhigher flexibility and operational life.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DARPA is looking at ion-drive spy satellites. Truth be told, this is not surprising. One of the limiting factors on many spy satellites is the amount of propellant available, and if you can use a very high impulse (rocket fuel economy) for station keeping and scheduled moves, you can either make a lighter vehicle, which &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1102,1037,1025],"tags":[],"class_list":["post-198990","post","type-post","status-publish","format-standard","hentry","category-intelligence","category-space","category-technology"],"_links":{"self":[{"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/posts\/198990"}],"collection":[{"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/comments?post=198990"}],"version-history":[{"count":0,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/posts\/198990\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/media?parent=198990"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/categories?post=198990"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/tags?post=198990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}