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The author:(作者)hpmailer
published in(发表于) 2013/12/1 20:43:07
Chang Ming 1:30, third moon, forecast weather in line with launch

Chang Ming 1:30, third moon forecast shows weather in line with emission | Chang | third | rocket propellant _ news

Authorities wide nets of Xichang, December 1 (Xinhua Zhang Mian Mian) aspect ratio, according to voice of the news reports, Chang e, third in China lunar probe launch tomorrow 1:30. At present, the long third b rocket carrying Chang, third, already second tower at the Xichang satellite launch Center in place, ready to.


As the launch approaches, meteorological departments of the launch site is one of the most intense, the busiest sector, they had to twice a day for a number of days of meteorological consultation to ensure the accuracy of data. According to meteorological experts of the launch site, in Xichang in this day there is no danger of weather. Weather forecasts also showed that tomorrow at around 1 o'clock in the morning, which is the launch phase, Xichang, the local temperature was 6 degrees Celsius. Reporter queries weather forecast from the Central meteorological station in Xichang, Sichuan province area, 1th, 2nd, this stage is cloudy during the day at night, no forecasts of severe weather such as lightning, rain and snow.


According to the introduction, rocket upper wind less than 75 meters per second, per second average wind speed is less than 10 metres above the ground, while the maximum ground wind speed is less than 15 metres per second, because wind speed accuracy of rocket during launching by the General Assembly to have an impact. In addition, the launch process particularly taboo horizontal lateral wind, because the rocket is a slender rod structure, lateral wind can affect the structure of the rocket, and wind speed which might have caused the rocket broke in the air. According to the upper wind forecast for 36 hours before launch, today's wind direction 280 degrees, high altitude 62-64 meters per second wind wind is in full compliance with the launch requirements.


Powered by Chang-third long March b rocket is ready, and Chang, third has long been wrapped in a rocket, currently the test results are normal, has completed a comprehensive region-wide walkthroughs, launch preparations are progressing smoothly. Xichang satellite launching centre launch area command Deputy Commander Zhao Min, said yesterday morning, the replenishment of the rocket propellant has been started, with a day time conventional propellant filling 400-ton rocket.


In today afternoon, also plans entered to shot Qian program, in shot Qian program among to plus cryogenic advance agent, due to cryogenic advance agent volatile comparison fast, so must control quite accurate, because early raises will volatile off, late has and will effects launches window, also are so must guarantee took off Qian of-4.5 points, only can put throughout cryogenic advance agent of raises work completed.


In addition, Chang, third detector indicators are now perfectly normal, it today from a ground power to the internal power supply, to complete the final task, and long March carrier rocket to the moon.


(Original title: Chang, third moon forecast weather 1:30 tomorrow in line with launch site)

(Edit: SN098)
December 01, 2013 China broadcast network
(
嫦娥三号明1时30分奔月 预报显示天气符合发射|嫦娥三号|火箭|推进剂_新闻资讯

  央广网西昌12月1日消息 (记者张棉棉)据中国之声《新闻纵横》报道,我国嫦娥三号月球探测器即将于明天凌晨1:30分发射。目前,搭载嫦娥三号的长征三号乙运载火箭,已经在西昌卫星发射中心二号塔架就位,整装待发。


  随着发射的临近,发射场的气象部门是最紧张、最忙碌的部门之一,他们已经连续多天进行每天两次的气象会商,以确保数据的准确。据发射场气象室专家介绍,西昌在今明两天没有危险性天气。天气预报还显示,在明天凌晨1点左右,也就是发射阶段,西昌当地的温度是在6摄氏度左右。记者查询了中央气象台对四川西昌地区的天气预报,1号夜间到2号白天这个阶段是多云天气,没有雷电、雨雪等恶劣天气的预报。


  据介绍,火箭发射时高空风要小于每秒75米,地面平均风速是要小于每秒10米,而最大的地面风速是要小于每秒15米,因为风速过大会对火箭发射过程之中的精度产生影响。另外,火箭发射过程之中特别忌讳横向的侧向风,因为火箭是细长的杆状结构,侧向风会对火箭的结构产生影响,而风速过大甚至可能会导致火箭在空中折断。根据发射前36小时的高空风预报情况,今天的风向是280度,高空风的风力是每秒62-64米,完全符合发射需求。


  搭载嫦娥三号的长征乙运载火箭已经准备就绪,而嫦娥三号也早就被包裹在火箭之中,目前各项测试结果正常,已经完成了全区综合演练,发射任务准备工作也是进展十分顺利。西昌卫星发射中心任务发射厂区指挥部副指挥长赵民介绍说,在昨天上午,火箭已经开始了推进剂的加注,用一天的时间把400吨的常规推进剂加注火箭里。


  在今天下午,还计划进入到射前程序,在射前程序之中才能加低温推进剂,由于低温推进剂挥发比较快,所以必须控制相当准确,因为早加注会挥发掉,晚了又会影响发射窗口,也正因此必须保证起飞前的-4分半钟,才能够把整个低温推进剂的加注工作完成。


  另外,嫦娥三号的探测器的各项指标现在也是非常正常,它在今天要由地面供电转为内部供电,完成最后的任务,然后和长征乙运载火箭一起奔向月球。


(原标题:嫦娥三号明日1时30分奔月 预报显示天气符合发射)


(编辑:SN098)
2013年12月01日09:05
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