{"id":695,"date":"2019-04-18T10:10:58","date_gmt":"2019-04-18T10:10:58","guid":{"rendered":"http:\/\/aptog.com\/?p=695"},"modified":"2019-04-18T10:14:06","modified_gmt":"2019-04-18T10:14:06","slug":"20882-2000-vh57-an-inner-main-belt-binary-asteroid","status":"publish","type":"post","link":"https:\/\/aptog.com\/?p=695","title":{"rendered":"(20882) 2000 VH57: AN INNER MAIN-BELT BINARY ASTEROID"},"content":{"rendered":"<p><a href=\"http:\/\/aptog.com\/wp-content\/uploads\/2019\/04\/2019MPBu___46__164W.pdf\">http:\/\/aptog.com\/wp-content\/uploads\/2019\/04\/2019MPBu___46__164W.pdf<\/a><\/p>\n<p>CCD photometric observations of the inner main-belt\u00a0asteroid (20882) 2000 VH57 were made from 2018\u00a0Sept. 15 through Oct. 20. Analysis of the data showed\u00a0that the asteroid is binary with a primary rotational\u00a0period of 2.5586 hr and a satellite orbital period of 32.81\u00a0hr. Mutual eclipse\/occultation events indicate a lower\u00a0limit on the secondary-to-primary mean diameter ratio\u00a0(Ds\/Dp) of 0.23. During the period of observations, the\u00a0primary and secondary lightcurves evolved as the\u00a0viewing aspect changed. In particular, the depth of the\u00a0secondary event increased significantly towards the end\u00a0of the observations.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>http:\/\/aptog.com\/wp-content\/uploads\/2019\/04\/2019MPBu___46__164W.pdf CCD photometric observations of the inner main-belt\u00a0asteroid (20882) 2000 VH57 were made from 2018\u00a0Sept. 15 through Oct. 20. Analysis of the data showed\u00a0that the asteroid is binary with a primary rotational\u00a0period of 2.5586 hr and a satellite orbital period of 32.81\u00a0hr. Mutual eclipse\/occultation events indicate a lower\u00a0limit on the secondary-to-primary mean diameter ratio\u00a0(Ds\/Dp) of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7],"tags":[28,23,29],"class_list":["post-695","post","type-post","status-publish","format-standard","hentry","category-papers-and-letters","tag-28","tag-binary-asteroid","tag-main-belt-asteroid"],"acf":[],"_links":{"self":[{"href":"https:\/\/aptog.com\/index.php?rest_route=\/wp\/v2\/posts\/695","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aptog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aptog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aptog.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aptog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=695"}],"version-history":[{"count":4,"href":"https:\/\/aptog.com\/index.php?rest_route=\/wp\/v2\/posts\/695\/revisions"}],"predecessor-version":[{"id":700,"href":"https:\/\/aptog.com\/index.php?rest_route=\/wp\/v2\/posts\/695\/revisions\/700"}],"wp:attachment":[{"href":"https:\/\/aptog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=695"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aptog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=695"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aptog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=695"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}