{"id":8810,"date":"2021-05-14T14:29:41","date_gmt":"2021-05-14T13:29:41","guid":{"rendered":"https:\/\/bis-space.com\/shop\/?post_type=product&#038;p=8810"},"modified":"2021-05-14T14:29:41","modified_gmt":"2021-05-14T13:29:41","slug":"method-for-rapid-interplanetary-trajectory-analysis-by-delta-v-maps-with-flyby-options","status":"publish","type":"product","link":"https:\/\/bis-space.com\/shop\/product\/method-for-rapid-interplanetary-trajectory-analysis-by-delta-v-maps-with-flyby-options\/","title":{"rendered":"Method for Rapid Interplanetary Trajectory Analysis by delta-V Maps with Flyby Options"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<h3>T. Ishimatsu; J. Hoffman; O. de Weck (2011),\u00a0<i>JBIS<\/i>,\u00a0<b>64<\/b>, 204-213<\/h3>\n<p><b>Refcode<\/b>: 2011.64.204<\/p>\n<p><b>Abstract:<\/b><br \/>\nThis paper develops a convenient tool which is capable of calculating ballistic interplanetary trajectories with planetary flyby options to create exhaustive V contour plots for both direct trajectories without flybys and flyby trajectories in a single chart. The contours of V for a range of departure dates (x-axis) and times of flight (y-axis) serve as a \u201cvisual calendar\u201d of launch windows, which are useful for the creation of a long-term transportation schedule for mission planning purposes. For planetary flybys, a simple powered flyby manoeuvre with a reasonably small velocity impulse at periapsis is allowed to expand the flyby mission windows. The procedure of creating a V contour plot for direct trajectories is a straightforward full- factorial computation with two input variables of departure and arrival dates solving Lambert&#8217;s problem for each combination. For flyby trajectories, a \u201cpseudo full-factorial\u201d computation is conducted by decomposing the problem into two separate full- factorial computations. Mars missions including Venus flyby opportunities are used to illustrate the application of this model for the 2020-2040 time frame. The \u201ccompetitiveness\u201d of launch windows is defined and determined for each launch opportunity.<\/p>\n","protected":false},"featured_media":8812,"template":"","meta":[],"pwb-brand":[],"product_brand":[],"product_cat":[56,59,161],"product_tag":[2016,2017,2015,2013,2019,214,2014,2018,2012,2020],"class_list":["post-8810","product","type-product","status-publish","has-post-thumbnail","product_cat-journal-of-the-bis","product_cat-papers","product_cat-2011papers","product_tag-c3","product_tag-delta-v","product_tag-interplanetary-trajectory","product_tag-j-hoffman","product_tag-launch-window","product_tag-mars","product_tag-o-de-weck","product_tag-pork-chop-plot","product_tag-t-ishimatsu","product_tag-venus-flyby","first","instock","downloadable","virtual","purchasable","product-type-simple","czr-hentry"],"jetpack_sharing_enabled":true,"brands":[],"_links":{"self":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product\/8810","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/media\/8812"}],"wp:attachment":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/media?parent=8810"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/pwb-brand?post=8810"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_brand?post=8810"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_cat?post=8810"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_tag?post=8810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}