{"id":1485,"date":"2013-05-25T07:24:40","date_gmt":"2013-05-25T11:24:40","guid":{"rendered":"http:\/\/www.graymanwrites.com\/blog\/?p=1485"},"modified":"2013-05-25T07:24:40","modified_gmt":"2013-05-25T11:24:40","slug":"first-manned-skylab-mission-and-magellan-aerobraking","status":"publish","type":"post","link":"https:\/\/www.grayrinehart.com\/blog\/first-manned-skylab-mission-and-magellan-aerobraking\/","title":{"rendered":"First Manned Skylab Mission, and Magellan Aerobraking"},"content":{"rendered":"<p>Forty years ago today &#8212; May 25, 1973 &#8212; a Saturn 1B rocket launched from Cape Canaveral, carrying the first crew to inhabit the Skylab space station.<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"http:\/\/www.nasa.gov\/images\/content\/747023main_Skylab_illustration_800-600.jpg\" \/><br \/>\n<em>(Artist&#8217;s cutaway illustration of Skylab, from 1972. NASA image.)<\/em><\/p>\n<p>The <a href=\"http:\/\/nssdc.gsfc.nasa.gov\/nmc\/spacecraftDisplay.do?id=1973-050A\">Skylab 2<\/a> mission placed astronauts Charles Conrad, Jr., Paul J. Weitz, and Dr. Joseph P. Kerwin aboard the station for just under a month.<\/p>\n<p>The astronauts had to make substantial repairs of launch damage to make the station habitable, beginning with deploying and attaching a sunshade &#8212; which they dubbed a &#8220;parasol&#8221; &#8212; to keep the interior cool. They also had to release one solar array that had become stuck during deployment. Once the repair work was done, &#8220;the crew conducted solar astronomy and Earth resources experiments, medical studies, and five student experiments&#8221; over the course of their 28-day stay.<\/p>\n<p>The crew returned to Earth on June 22, 1973. You can read more on <a href=\"http:\/\/www.nasa.gov\/mission_pages\/skylab\/missions\/skylab_manned.html\">this Skylab mission page<\/a> or <a href=\"http:\/\/www-pao.ksc.nasa.gov\/history\/skylab\/skylab-2.htm\">this Skylab 2 page.<\/a><\/p>\n<p>In other space history, on this date 20 years ago, the <a href=\"http:\/\/www.jpl.nasa.gov\/missions\/details.php?id=5896\">Magellan<\/a> radar-mapping spacecraft began a 70-day aerobraking maneuver to circularize its orbit around Venus. Magellan was the first spacecraft to use aerobraking, and by doing so saved fuel for future maneuvers.<\/p>\n<p>___<\/p>\n<p>Editor&#8217;s Note: While I&#8217;m on holiday over the next week, Space history items may be late, combined in odd ways, or even nonexistent. Sorry for any inconvenience. 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\/><\/a>","protected":false},"excerpt":{"rendered":"<p>Forty years ago today &#8212; May 25, 1973 &#8212; a Saturn 1B rocket launched from Cape Canaveral, carrying the first crew to inhabit the Skylab space station. (Artist&#8217;s cutaway illustration of Skylab, from 1972. NASA image.) The Skylab 2 mission placed astronauts Charles Conrad, Jr., Paul J. Weitz, and Dr. \u2026 <a class=\"continue-reading-link\" href=\"https:\/\/www.grayrinehart.com\/blog\/first-manned-skylab-mission-and-magellan-aerobraking\/\"> Continue reading <span class=\"meta-nav\">&rarr; <\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[11,22,120],"class_list":["post-1485","post","type-post","status-publish","format-standard","hentry","category-space","tag-space-history","tag-space-station","tag-venus"],"_links":{"self":[{"href":"https:\/\/www.grayrinehart.com\/blog\/wp-json\/wp\/v2\/posts\/1485","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.grayrinehart.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.grayrinehart.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.grayrinehart.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.grayrinehart.com\/blog\/wp-json\/wp\/v2\/comments?post=1485"}],"version-history":[{"count":1,"href":"https:\/\/www.grayrinehart.com\/blog\/wp-json\/wp\/v2\/posts\/1485\/revisions"}],"predecessor-version":[{"id":1486,"href":"https:\/\/www.grayrinehart.com\/blog\/wp-json\/wp\/v2\/posts\/1485\/revisions\/1486"}],"wp:attachment":[{"href":"https:\/\/www.grayrinehart.com\/blog\/wp-json\/wp\/v2\/media?parent=1485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.grayrinehart.com\/blog\/wp-json\/wp\/v2\/categories?post=1485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.grayrinehart.com\/blog\/wp-json\/wp\/v2\/tags?post=1485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}