{"id":9822,"date":"2021-05-21T11:29:48","date_gmt":"2021-05-21T10:29:48","guid":{"rendered":"https:\/\/bis-space.com\/shop\/?post_type=product&#038;p=9822"},"modified":"2021-05-21T11:29:48","modified_gmt":"2021-05-21T10:29:48","slug":"retrieval-strategies-for-dead-comsats-for-the-necropolis-system-mission","status":"publish","type":"product","link":"https:\/\/bis-space.com\/shop\/product\/retrieval-strategies-for-dead-comsats-for-the-necropolis-system-mission\/","title":{"rendered":"Retrieval Strategies for Dead ComSats for the Necropolis System Mission"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<h3>P. Grasset et al. (2017),\u00a0<i>JBIS<\/i>,\u00a0<b>70<\/b>, pp.283-286<\/h3>\n<p><b>Refcode<\/b>: 2017.70.283<\/p>\n<p><b>Abstract:<\/b><br \/>\nThe problem of possible collisions between satellites in low Earth orbit and the resultant debris is now well known about. Less well known is that a similar problem may be arising in geosynchronous orbit (GEO). Some geosynchronous satellites have become uncontrolled for various reasons and represent a threat for operational spacecraft as the influence of the solar and lunar gravitational forces have made them drift towards &#8220;libration points&#8221;. To reduce the risk of collision a mission has been proposed by R.Longstaff, M. Hempsell, S.Alexandra and this paper aim to analyse orbital strategies for a rendezvous with those &#8220;dead&#8221; satellites and perform their removal to a safe location. A detailed inclination change manoeuvre using low-thrust propulsion to rendezvous with 6 satellites in a drifting condition is presented, as well as a trajectory optimization for the mission. The elaboration of those strategies is based on previous papers on inclination change using low-thrust propulsion, carrying out simulation and verification using MATLAB software. The model used in the simulations includes the effect of Earth perturbations (secular and long-period) as well as the perturbations due to the Thrusters used in the inclination manoeuvre. An optimization is also conducted on the order of retrieval for the 6 targets as well as on the efficiency trigger for the inclination manoeuvre.<\/p>\n","protected":false},"featured_media":9823,"template":"","meta":[],"pwb-brand":[],"product_brand":[],"product_cat":[56,59,167],"product_tag":[2882,2883],"class_list":["post-9822","product","type-product","status-publish","has-post-thumbnail","product_cat-journal-of-the-bis","product_cat-papers","product_cat-2017papers","product_tag-geosynchronous-collisions","product_tag-space-debris-mitigation","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\/9822","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\/9823"}],"wp:attachment":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/media?parent=9822"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/pwb-brand?post=9822"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_brand?post=9822"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_cat?post=9822"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_tag?post=9822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}