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天宮一號倒飛“待吻”神八飛船

更新時(shí)間:2011-10-31      點(diǎn)擊次數:660

天宮一號倒飛“待吻”神八飛船

10月30日19時(shí)34分,在北京航天飛行控制中心的控制下,天宮一號偏航180度,建立倒飛姿態(tài),這標志著(zhù)天宮一號已為實(shí)施空間交會(huì )對接做好了準備。

據北京航天飛行控制中心主任陳宏敏介紹,天宮一號目標飛行器自9月29日在酒泉衛星發(fā)射中心發(fā)射升空后,在地面指令引導下,先后完成了多次軌道控制和平臺在軌測試工作,于10月30日進(jìn)入距地面高度約343公里的近圓形交會(huì )對接軌道。截至30日19時(shí)30分,天宮一號已在軌運行30天22小時(shí)。根據各項遙測數據監視判斷,天宮一號飛行正常、姿態(tài)穩定、能源平衡,各項試驗進(jìn)展順利,具備執行交會(huì )對接的條件。

據了解,實(shí)施空間交會(huì )對接任務(wù),需要對兩個(gè)航天器實(shí)施協(xié)同控制,軌道機動(dòng)次數多,測控精度要求高,每次變軌控制環(huán)環(huán)相扣、密切相關(guān),對測控系統提出了很高的要求。此外,由于近期空間天氣活動(dòng)變化劇烈,對航天器中長(cháng)期定軌預報工作影響較大,對科研人員確定神舟八號發(fā)射窗口帶來(lái)了很大挑戰。目前,北京航天飛行控制中心正在認真收集分析空間天氣監測數據、研究制定應對措施,在對天宮一號實(shí)施軌道預報和控制的同時(shí),抓緊計算神舟八號發(fā)射的窗口時(shí)間。

*老照片:神舟起征程 夢(mèng)圓航天港 再向太空行 “神七”再輝煌 今日航天城

 

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