{"id":759,"date":"2017-08-19T16:27:46","date_gmt":"2017-08-19T07:27:46","guid":{"rendered":"http:\/\/jupiter.kyoto-svp.com\/?p=759"},"modified":"2017-08-19T17:48:43","modified_gmt":"2017-08-19T08:48:43","slug":"nasa%e3%81%ae%e5%8b%95%e7%94%bb%e3%81%a7%e8%a6%8b%e3%82%8b%e6%9c%a8%e6%98%9f%e3%81%a8%e6%8e%a2%e6%9f%bb%e6%a9%9f%e3%82%b8%e3%83%a5%e3%83%8e%e3%83%bc%e3%81%ae%e5%85%a8%e3%81%a6%e3%80%80%e7%ac%ac8","status":"publish","type":"post","link":"https:\/\/jupiter.kyoto-svp.com\/?p=759","title":{"rendered":"NASA\u306e\u52d5\u753b\u3067\u898b\u308b\u6728\u661f\u3068\u63a2\u67fb\u6a5f\u30b8\u30e5\u30ce\u30fc\u306e\u5168\u3066\u3000\u7b2c8\u8a71\u3010The Story &#8211; EARTH FLYBY\u3011"},"content":{"rendered":"<h2>The Story &#8211; EARTH FLYBY\uff1a\u30b8\u30e5\u30ce\u30fc\u304c\u5730\u7403\u3067\u30d5\u30e9\u30a4\u30d0\u30a4\uff01\u6728\u661f\u306b\u5411\u304b\u3046<\/h2>\n<p>\u7b2c8\u8a71\u3000<a class=\"\" role=\"menuitem\" href=\"https:\/\/www.missionjuno.swri.edu\/deploy-the-craft\/\">Deploy The Craft<\/a>\uff08\u30aa\u30ea\u30b8\u30ca\u30eb\u82f1\u6587URL\uff09<\/p>\n<h3>INNER CRUISE \/ EARTH FLYBY<\/h3>\n<p>After traveling in space for two years, Juno swings by Earth once more, in October 2013. It will use Earth\u2019s gravity to help propel itself toward Jupiter \u2013 a maneuver sometimes called a gravitational slingshot.<br \/>\n<span style=\"color: #0000ff;\">\u5b87\u5b99\u7a7a\u9593\u306b2\u5e74\u9593\u6ede\u5728\u3057\u305f\u5f8c\u3001\u30b8\u30e5\u30ce\u30fc\u306f2013\u5e7410\u6708\u306b\u3082\u3046\u4e00\u5ea6\u5730\u7403\u306b\u3088\u3063\u3066\u52a0\u901f\u3057\u307e\u3059\u3002\u5730\u7403\u306e\u91cd\u529b\u3092\u5229\u7528\u3057\u3066\u6728\u661f\u306b\u5411\u304b\u3063\u3066\u52a0\u901f\u3059\u308b\u306e\u3067\u3059\u3002\u3053\u306e\u8ecc\u9053\u3092\u4f7f\u3063\u305f\u52a0\u901f\u6280\u8853\u306f\u91cd\u529b\u30b9\u30ea\u30f3\u30b0\u30b7\u30e7\u30c3\u30c8\u3068\u547c\u3070\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/1HAK1mlMMOU\" width=\"640\" height=\"360\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h3>WHY FLY BY?<\/h3>\n<p>When a spacecraft flies near a planet, both objects feel each other\u2019s gravitational pull. But because a spacecraft is so much smaller, it feels a big tug while the massive planet hardly feels a thing. During the Earth flyby, called a gravity assist, Juno steals a tiny bit of our planet\u2019s enormous momentum in its orbit around the sun, giving the spacecraft enough energy to reach beyond the asteroid belt and travel all the way to Jupiter.<br \/>\n<span style=\"color: #0000ff;\">\u63a2\u67fb\u6a5f\u304c\u60d1\u661f\u306e\u8fd1\u304f\u3092\u98db\u3076\u3068\u304d\u3001\u304a\u4e92\u3044\u306e\u91cd\u529b\u306e\u5f71\u97ff\u3092\u53d7\u3051\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u63a2\u67fb\u6a5f\u306f\u975e\u5e38\u306b\u5c0f\u3055\u3044\u306e\u3067\u3001\u5927\u898f\u6a21\u306a\u60d1\u661f\u306f\u63a2\u67fb\u6a5f\u306e\u5f71\u97ff\u3092\u307b\u3068\u3093\u3069\u53d7\u3051\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30b8\u30e5\u30ce\u30fc\u306f\u91cd\u529b\u652f\u63f4\u3068\u547c\u3070\u308c\u308b\u5730\u7403\u30d5\u30e9\u30a4\u30d0\u30a4\u306e\u9593\u3001\u592a\u967d\u306e\u5468\u56de\u8ecc\u9053\u4e0a\u306b\u3042\u308b\u60d1\u661f\u306e\u5de8\u5927\u306a\u5f15\u529b\u3092\u5229\u7528\u3057\u3001\u63a2\u67fb\u6a5f\u306b\u5c0f\u60d1\u661f\u30d9\u30eb\u30c8\u3092\u8d8a\u3048\u3066\u6728\u661f\u306b\u81f3\u308b\u307e\u3067\u306b\u5341\u5206\u306a\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/span><\/p>\n<p>When Juno launched, there was not an available rocket powerful enough to send such a heavy spacecraft directly Jupiter, so the flyby maneuver is an essential part of the mission. The Atlas V rocket provided half of the boost Juno needs to reach Jupiter, and the Earth flyby provides the rest. It\u2019s the energy of an extra rocket launch, without the extra rocket.<br \/>\n<span style=\"color: #0000ff;\">\u30b8\u30e5\u30ce\u30fc\u304c\u6253\u3061\u4e0a\u3052\u3089\u308c\u305f\u3068\u304d\u3001\u91cd\u3044\u63a2\u67fb\u6a5f\u3092\u6728\u661f\u306b\u76f4\u63a5\u9001\u308c\u308b\u307b\u3069\u5f37\u529b\u306a\u30ed\u30b1\u30c3\u30c8\u306f\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u306e\u3067\u3001\u30d5\u30e9\u30a4\u30d0\u30a4\u3092\u7528\u3044\u305f\u822a\u6d77\u65b9\u6cd5\u306f\u30df\u30c3\u30b7\u30e7\u30f3\u306b\u4e0d\u53ef\u6b20\u306a\u3082\u306e\u3067\u3057\u305f\u3002 Atlas V\u30ed\u30b1\u30c3\u30c8\u306f\u30b8\u30e5\u30ce\u30fc\u304c\u6728\u661f\u306b\u5230\u9054\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u30d6\u30fc\u30b9\u30c8\u306e\u534a\u5206\u3092\u63d0\u4f9b\u3057\u3001\u5730\u7403\u306b\u3088\u308b\u30d5\u30e9\u30a4\u30d0\u30a4\u304c\u6b8b\u308a\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u7279\u5225\u30ed\u30b1\u30c3\u30c8\u3092\u7528\u3044\u306a\u3044\u7279\u5225\u30ed\u30b1\u30c3\u30c8\u52a0\u901f\u306e\u30a8\u30cd\u30eb\u30ae\u30fc\u3068\u306a\u308b\u6280\u8853\u3067\u3059\u3002<\/span><\/p>\n<p>The flyby is also important because it acts as a rehearsal for the Juno team to test the instruments and practice certain operations at Earth before the real thing at Jupiter. After its brief visit, Juno will cruise for three more years, receiving routine checkup calls from engineers. The spacecraft will report its health status at least once a week and engineers will turn on and test its science instruments at least once a year.<br \/>\n<span style=\"color: #0000ff;\">\u3053\u306e\u30d5\u30e9\u30a4\u30d0\u30a4\u306f\u3001\u30b8\u30e5\u30ce\u30fc\u30fb\u30c1\u30fc\u30e0\u304c\u3042\u308b\u64cd\u4f5c\u3092\u5730\u7403\u4e0a\u304b\u3089\u30ea\u30cf\u30fc\u30b5\u30eb\u3068\u3092\u304b\u306d\u3066\u8a66\u9a13\u3092\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3001\u6728\u661f\u3067\u672c\u756a\u3092\u8fce\u3048\u308b\u524d\u306b\u3067\u304d\u308b\u3053\u3068\u304b\u3089\u3068\u3066\u3082\u91cd\u8981\u3067\u3059\u3002\u6728\u661f\u306b\u4e00\u5ea6\u77ed\u671f\u9593\u3067\u3059\u304c\u8fd1\u3065\u3044\u305f\u5f8c\u3001\u30b8\u30e5\u30ce\u30fc\u306f\u3055\u3089\u306b3\u5e74\u9593\u306b\u308f\u305f\u308a\u822a\u6d77\u3092\u7d9a\u3051\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u304b\u3089\u5b9a\u671f\u7684\u306a\u70b9\u691c\u3092\u53d7\u3051\u307e\u3059\u3002\u63a2\u67fb\u6a5f\u306f\u5c11\u306a\u304f\u3068\u3082\u9031\u306b1\u56de\u306f\u6a5f\u5668\u306e\u72b6\u614b\u3092\u901a\u77e5\u3057\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u5c11\u306a\u304f\u3068\u30821\u5e74\u306b1\u56de\u306f\u79d1\u5b66\u89b3\u6e2c\u6a5f\u5668\u306e\u96fb\u6e90\u3092\u30aa\u30f3\u306b\u3057\u3066\u30c6\u30b9\u30c8\u3057\u307e\u3059\u3002<\/span><\/p>\n<p>During its flyby rendezvous, Juno will spend about 20 minutes within Earth\u2019s shadow \u2013 the only eclipse Juno ever experiences after launch. At closest approach, the spacecraft will come within 350 miles (560 kilometers) of Earth\u2019s surface.<br \/>\n<span style=\"color: #0000ff;\">\u30b8\u30e5\u30ce\u30fc\u306f\u3001\u30d5\u30e9\u30a4\u30d0\u30a4\u306e\u969b\u306e\u63a5\u8fd1\u306e\u9593\u306b\u3001\u6253\u3061\u4e0a\u3052\u4ee5\u6765\u521d\u3081\u3066\u5730\u7403\u306e\u5f71\u306e\u4e2d\u306b\u7d0420\u5206\u9593\u5165\u308a\u307e\u3059\u3002\u6700\u3082\u63a5\u8fd1\u3059\u308b\u969b\u306b\u306f\u3001\u63a2\u67fb\u6a5f\u306f\u5730\u7403\u8868\u9762\u304b\u3089350\u30de\u30a4\u30eb\uff08560\u30ad\u30ed\u30e1\u30fc\u30c8\u30eb\uff09\u4ee5\u5185\u306e\u8ddd\u96e2\u306b\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n<h2><span style=\"color: #0000ff;\">\u8a33\u8005\u6ce8<\/span><\/h2>\n<p><span style=\"color: #0000ff;\">\u30b8\u30e5\u30ce\u30fc\u304c\u5730\u7403\u306e\u5f15\u529b\u3092\u4f7f\u3063\u3066\u30d5\u30e9\u30a4\u30d0\u30a4\u3092\u3059\u308b\u3068\u3053\u308d\u306e\u52d5\u753b\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"color: #0000ff;\">\u3088\u3046\u3084\u304f\u6728\u661f\u306b\u5411\u304b\u3044\u8ecc\u9053\u5909\u66f4\u3092\u3057\u307e\u3059\u3002\uff08\u5b9f\u969b\u306b\u306f\u3053\u308c\u304b\u3089\u3055\u3089\u306b3\u5e74\u306e\u5e74\u6708\u3092\u8981\u3059\u308b\u306e\u3067\u3059\u304c&#8230;\uff09<\/span><\/p>\n<p><span style=\"color: #0000ff;\">\u6b21\u56de\u306f\u3044\u3088\u3044\u3088\u8a18\u61b6\u306b\u3082\u65b0\u3057\u3044\u611f\u52d5\u7684\u306a\u6728\u661f\u8ecc\u9053\u5230\u9054\u3067\u3059\uff01<\/span><\/p>\n<p><span style=\"color: #0000ff;\"><a href=\"http:\/\/jupiter.kyoto-svp.com\/?p=704\" target=\"_blank\" rel=\"noopener\">\u7b2c1\u8a71\u3000Origin\uff1a\u592a\u967d\u7cfb\u306e\u6210\u308a\u7acb\u3061\u3068\u6728\u661f\u306e\u3082\u3064\u610f\u5473<\/a>\u3000\u6700\u521d\u306b\u623b\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"color: #0000ff;\"><a href=\"http:\/\/jupiter.kyoto-svp.com\/?p=753\" target=\"_blank\" rel=\"noopener\">\u7b2c7\u8a71\u3000The Story &#8211; Deploy the craft\uff1a\u30b8\u30e5\u30ce\u30fc\u306e\u65c5\u306e\u59cb\u307e\u308a<\/a>\u3000\u524d\u8a71\u306b\u623b\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"color: #0000ff;\"><a href=\"http:\/\/jupiter.kyoto-svp.com\/?p=765\" target=\"_blank\" rel=\"noopener\">\u7b2c9\u8a71\u3000The Story &#8211; Orbit\uff1a\u611f\u52d5\u306e\u30b8\u30e5\u30ce\u30fc\u6728\u661f\u8ecc\u9053\u5230\u9054\uff01<\/a>\u3000\u306b\u7d9a\u304d\u307e\u3059\u3002<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Story &#8211; EARTH FLYBY\uff1a\u30b8\u30e5\u30ce\u30fc\u304c\u5730\u7403\u3067\u30d5\u30e9\u30a4\u30d0\u30a4\uff01\u6728\u661f\u306b\u5411\u304b\u3046 \u7b2c8\u8a71\u3000Deploy The Craft\uff08\u30aa\u30ea\u30b8\u30ca\u30eb\u82f1\u6587URL\uff09 INNER CRUISE \/ EARTH FLYBY&#8230;<\/p>\n","protected":false},"author":1,"featured_media":760,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[20,68],"tags":[5,72,71,4],"_links":{"self":[{"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=\/wp\/v2\/posts\/759"}],"collection":[{"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=759"}],"version-history":[{"count":3,"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=\/wp\/v2\/posts\/759\/revisions"}],"predecessor-version":[{"id":768,"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=\/wp\/v2\/posts\/759\/revisions\/768"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=\/wp\/v2\/media\/760"}],"wp:attachment":[{"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=759"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=759"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=759"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}