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“嫦娥四号”为何要落月球背面

月球背面着陆地点,大红圈为南极-艾肯盆地,小红圈为冯·卡门撞击坑。

▼与“嫦娥三号”着陆器相比,“嫦娥四号”着陆器增加了3根5米长的低频射电频谱仪天线。

“嫦娥四号”月球车外观设计构型。

jingguo20duotiandetaikongfeixing,“changesihao”henkuaijiangzheluyuyueqiubeimianyuxuanzheluqu——yueqiunanji-aikenpendineidefeng·kamenzhuangjikeng,chengweishijiediyigezaiyueqiubeimianruanzheluhexunshitancedehangtianqi。“changesihao”luoyuetanceqishi2018nian12yue8rishengkongde,2018nian12yue12rijinruyueqiuguidao。neime,“changesihao”weishenmeyaoluodaoyueqiubeimian?luodaoyueqiubeimianyounaxiekunnan?

“嫦娥四号”一路奔月宫

“changesihao”zhenggefeixingguochengbaokuofasheruguiduan、diyuezhuanyiduan、jinyuezhidongduan、huanyuefeixingduan、huanyuejiangguiduan、donglixiajiangduan,zuizhongzheludaoyuemian。qijian,zheluqihexunshiqizuhetitongguo“queqiao”yueqiuzhongjixingyudimianjianlishangxiaxingtongxinlianlu。zheluchenggonghou,zheluqijiangzejiwanchengxunshiqishifang。zheluqi、xunshiqifenbiekaizhankexuetance,bingtongguo“queqiao”jiangshujuchuanhuidiqiu。

“changesihao”luoyuetanceqishengkonghou,youyuzhunshifashe、zhunquerugui,yuanjihuazaijinyuezhidongqianshishide3ciguidaozhongtuxiuzheng,zhiyu2018nian12yue9rijinxingle1ci,dadaoleyuqimubiao。

彩票官网jingguoyue110xiaoshibenyuefeixing,2018nian12yue12ri16:45,“changesihao”chenggongshishilejinyuezhidong,shunliwancheng“taikongchache”,beiyueqiubuhuo,jinrulehuanyueguidao。ciqiande12yue12ri16:39,“changesihao”zaijuyuemian129qianmichuchenggongshishile7500niufadongjidianhuo,yue5fenzhonghoufadongjizhengchangguanji,“changesihao”shunlijinrujinyuedian100qianmidehuanyueguidao,jinyuezhidonghuodeyuanmanchenggong。

suoweijinyuezhidongjiushijigaosufeixingzaidiyuezhuanyiguidaodehangtianqijiansu,shiqibeiyueqiudeyinlibuhuo,jinruhuanyueguidao。“changesihao”jingguoyue110xiaoshifeixinghou,yi10qianmi/miaozuoyoudesuduheyueqiuxiangyu。cishitayuyueqiudexiangduisuduyuewei2.4qianmi/miao。daodazhidongdianshi,taxuyaotongguojiansufadongjifantuijiangsudujiangxialai,zhidongliangyuewei800mi/miao,jijiangyuanben2.4qianmi/miaodexiangduisudujiangdidao1.6qianmi/miaozuoyou。“changesihao”de“chache”liduxuyaojiqijingzhun。ruguo“chachezhongle”,lirumeimiaodesududuojian30mi,kenenghuidaozhitazhuangshangyueqiu;ruguo“chacheqingle”,tanceqisuduguodadehua,yueqiuyinliyehuilabuzhuta。

youxierenkenenghuiwen: zaihuanyueguidaoyunxingzheiduanshijianneitanceqidouganshenmele?juxi,“changesihao”luoyuetanceqidiaozhenglehuanyueguidaogaoduheqingjiao,kaizhanleyu“queqiao”yueqiuzhongjixingdezhongjilianluzaiguiceshihedaohangminganqizaiguiceshi,yiquebao“changesihao”zuizhongnengjinruyudingdezheluqu,zejishishiyueqiubeimianruanzhelu。

在月球背面着陆意义大

muqianquanqiuyijinxingguo130duocitanyuehuodong,baokuoyongtanceqizhuangjiguoyueqiubeimian,danshiconglaimeiyouyigetanceqizaiyueqiubeimianjinxingruanzhelu。

彩票官网tongguoyifashededaliangraoyuetanceqilejiedao,yueqiubeimianjuyoubutongyuyueqiuzhengmiandedizhigouzao,duo“shan”duo“gu”,suoyiduiyanjiuyueqiuhediqiudezaoqilishijuyouzhongyaojiazhi。diqiushangjinglileduocicanghaisangtian,zaoqidizhilishidehenjizaoyixiaoshidaijin,zhinengjiwangyucongyueqiushangrengbaocunwanhaodedizhijiluzhongwajuediqiudezaoqilishi。yinci,duiyueqiubeimiankaizhanxingmao、wuzhizucheng、yuerangheyuebiaoqiancengjiegoudejiuweiyuxunshizonghetance,kecujinduiyueqiuzaoqiyanhualishidexinrenzhi,duiyanjiudiqiudezaoqilishiyeyouzhongyaojiazhi。

lingwai,youyubeidiqiuchaoxisuoding、yueqiudezizhuanyugongzhuanzhouqixiangtongdengyuanyin,zaidiqiushangyongyuankanbudaoyueqiudebeimian,zhiyouyue59%deyuemiannengbeidiqiuguancedao。suoyiduitianwenxueyanjiueryan,yueqiubeimianshiyipiannandedeningjingzhidi。jieshouyaoyuantiantifachudeshedianfusheshiyanjiutiantidezhongyaoshouduan,chengweishedianguance。youyuzheixietiantidejuliyaoyuan,diancixinhaoshifenweiruo,suoyizaidiqiushang,richangshengchanshenghuodediancihuanjinghuiduishediantianwenguancechanshengxianzhuganrao,yincitianwenxuejiayizhixiwangzhaodaoyipianwanquanningjingdediqu,jiantinglaiziyuzhoushenchudeweiruodiancixinhao。yueqiubeimiankepingbilaizidiqiudegezhongwuxiandianganraoxinhao,yinerzaineilinengjiancedaodimianhediqiufujindetaikongwufafenbiandediancixinhao,yanjiuhengxingqiyuanhexingyunyanhua,youwangqudezhongdatianwenxuechengguo。

月背着陆“鹊桥”先行

buguo,zhengshiyouyuzaidiqiushangyongyuankanbudaoyueqiudebeimian,suoyizaiyueqiubeimianzheludetanceqibunengzhijiehediqiuzhanjinxingwuxiandiantongxin。weici,caipiaoguanwangguoyu2018nian6yue14rixianba“queqiao”yueqiuzhongjixingsongrudiyuelagelangri2dian(jianchengdiyuel2dian)deguidao。zaizheigeshimingguidaoshang,“queqiao”nengtongshikandaodiqiuheyueqiubeimian,bingjubeizai1000mi/miaogaosuzaiguifeixingzhong,sudukongzhijingduwuchabudayu0.02mi/miaodechaoqiangbenling,congerkeweizaiyueqiubeimianzhelude“changesihao”yudiqiuzhanzhijiantigongtongxinlianlu,chuanshucekongtongxinxinhaohekexueshuju。

彩票官网zunxungongchengjishushangkexing、kexueshangyoutesedeyuanze,“changesihao”dezheluquxuanzaiyueqiubeimiannanji-aikenpendineidefeng·kamenzhuangjikengnei,zheishiyinweigaizhuangjikengjuyoujiaogaodekexuetancejiazhi,qiedishijiaoweipingtan,keyitongshimanzukexuehegongchengshangdeyaoqiu。duigaizhuangjikengdezheluhetance,nenggoujieshiyueqiuxingchengheyanhuadeyixieguanjianwenti,zaiyueqiukexueyanjiuzhongjuyouhuashidaideyiyi。“changesihao”jiangfenxigaidiqudedibiaotezhenghedixiagouzao,weilejieyueqiu、diqiu、taiyangxiyanhuatigongdiyishouxiansuo。

彩票官网“changesihao”zaiyueqiubeimianfeng·kamenzhuangjikengwanchengruanzheluhou,jiangjinxingtaiyangdianchiyizhankaibingchongdian、dingxiangtianxianzhankaibingzhixiangdiqiuhetuijinjidunhuadengyixilieyuemianchushihuagongzuo。qixunshiqiyuzheluqipeihewanchengxunshiqijiesuofenli、zhuanyishifang、shilidengdongzuo,xunshiqidaodayuemian。cihou,zai“queqiao”yueqiuzhongjixingdezhichixia,zheluqikaizhanjiuweitance,xunshiqianzhaorenwuzhengtiguihuaduitancedianzhugejinxingkexuetance,bingbatanceshujuchuanhuidimian。

适应新任务改进多多

“changesihao”renwudegongchengmubiaozhuyaoyouliangge: yanzhi、fasheyueqiuzhongjitongxinweixing,shixianguojishoucidiyuel2diandecekongjizhongjitongxin;yanzhi、fasheyueqiuzheluqihexunshiqi,shixianguojishouciyueqiubeimianruanzheluhexunshitance。

qikexuemubiaozhuyaoyousange: kaizhanyueqiubeimiandipinshediantianwenguanceyuyanjiu;kaizhanyueqiubeimianxunshiquxingmao、kuangwuzufenjiyuebiaoqiancengjiegoutanceyuyanjiu;shiyanxingkaizhanyueqiubeimianzhongzifushejiliang、zhongxingyuanzidengyueqiuhuanjingtanceyanjiu。

彩票官网zuowei“changesanhao”debeifen,“changesihao”rengyouzheluqihexunshiqizucheng,danshiyinwei“changesihao”yu“changesanhao”dekexuemubiaobutong,yinciliangzhesuozhuangzaidekexuezaiheyoumingxianbianhua,genghuanlebufenkexuezaihe,qizhongzuizhuyaodetedianshizhuangzaileguojikexuezaihe。

“changesihao”dezhelufangshiyugongzuozhuangtaigen“changesanhao”yeyouhendaqubie,xingnengshangyouhendatisheng,zheishiyinwei“changesanhao”xiangdangyuzaihuabeipingyuanzhelu,er“changesihao”zexiangdangyuzaichongshanjunlingdeyunguichuandiquzhelu。

彩票官网yueqiuzhengmianyoujiaoweikuankuodepingyuan,suiranyeyouxuduoyunshikeng,danjishishikengdiyexiangduipingzheng,suoyi“changesanhao”shiyihuxingguijihuanmanzhelu。

彩票官网yueqiubeimiandedixinghenfuza,yunshikenggengduo,dakengtaoxiaokeng,dishigengdouqiao,shanfenglinli,hennanzhaochuzaidayixie、pingtanyixiededifanggong“changesihao”anshen。youyu“changesihao”yaozaiaotubupingdedifangruanzhelu,suoyixuyaojuyoubi“changesanhao”gengzhunquedezhelujingdu。weilebuzhuangdaoqiaobi,“changesihao”jubeihengaodezizhudaohanghebizhanggongneng,yibianzizhuxunzhaodishixiangduipingtandediqujinxingzhelu,caiqujinhuchuizhidezhelufangshi。

“changesanhao”zaizhangyueyelingxia180℃dehuanjingzhongshibunenggongzuode,er“changesihao”jiangcaiquxindenengyuangongjifangshi——tongweisuwenchafadianyuredianzongheliyongjishu,yibaozhengqiduguohanlengmanzhangdeyueyejizhengchangkaizhantancegongzuo,zaiguoneishoucishiceyueyeqijianqiancengyuerangdewendu。

“changesihao”deyueqiuchesuiyu“changesanhao”xiedaide“yutuhao”yueqiuchewaixinghezhongliangyiyang,shiquanqiumuqianzhongliangzuixiaodeyueqiuche,danyouyuyaoshoucizaiyueqiubeimianruanzheluhexunshi,yincizhenduiyueqiubeimianfuzadedixingtiaojian、zhongjitongxinxindexuqiu、jidadewenchahekexuemubiaodeshijixuyaodengyinsu,dui“changesihao”yueqiuchejinxingleshiyingxinggenggaiheyouxiaozaihepeizhidiaozheng,zaiyundonganquan、nengyuangongji、kexuetancehecekongtongxindengfangmianjunzuoleteshudesheji。youqizaixianlufangmianjinxingleshejigaijinheshiyanyanzheng,shitagengqiangda,jibupajirejilengde“guanghangong”,younengwanchenggengduoxinrenwu。

ciwai,“changesihao”deyueqiuchehaizhendui“yutuhao”zaizhixingrenwuguochengzhongyudaodeyixiewenti,youzhenduixingdijinxingledianlanshejidegaijinheshiyan。“changesihao”deyueqiuchejinzaidianlangougua、mocafangmianjiuzuoleshangqiancishiyan,tongshiyejinliangjianshaodianlanluoluzaiwaidemianji,jianshaodianlandeguzhangfengxian。

“changesihao”renwuwanchenghou,caipiaoguanwangguojiangzhixingtanyuesanqirenwu,fashe“changewuhao”caiyangfanhuiqi,tayoushangshengqi、zheluqi、guidaoqi、fanhuiqisigebufenzucheng,jiangwanchengtanyuegongchengdezhongdakuayue——daihui2qiankeyueqiuyangpin。

cihou,caipiaoguanwangguotanyuegongchengjiangshishidisiqigongcheng,zhuyaorenwubaokuokaizhanyijiqirenweidaibiaodeyueqiunanbeijitance,ranhoujianliwurendeyueqiukekaozhan。zuizhong,caipiaoguanwangguojiangshixianzairendengyuedehongweimubiao。

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