三泰虎

只要48小时就到火星,印度探测器今天面临大考验

三泰虎9月22日译文,今天下午2点30分左右,印度的火星轨道探测器将面临第一次考验,它的主要液体发动机将会点火4秒钟。上周,印度空间研究组织(ISRO)科学家对该发动机输入了命令,以检查它的状态是否良好。自从去年12月离开地球以来,发动机已经休眠了近300天。9月24日,推力440牛顿的发动机将工作24分钟,把探测器送入预订火星轨道。要是没有成功呢?那也不会是此次任务的终结。但是可供选择的方法将不会是这一雄心勃勃项目的完美结束。计划B是把原本用于高度控制和方向控制的8个推进器点上火。

译文来源:三泰虎 http://www.santaihu.com
外文标题:Mars orbiter faces crucial test today
外文地址:http://timesofindia.indiatimes.com/india/Mars-orbiter-faces-crucial-test-today/articleshow/43110800.cms


Img349847269

CHENNAI/BANGALORE: India's Mars Orbiter Mission (MOM) will face the first test of its last manoeuvre around 2.30pm on Monday when the main liquid engine of the spacecraft is expected to fire for four seconds.

今天下午2点30分左右,印度的火星轨道探测器将面临第一次考验,它的主要液体发动机将会点火4秒钟。

Indian Space Research Organisation (Isro) scientists loaded the commands last week to test if the engine, which has been idling for close to 300 days after it left the Earth's orbit on December 1 last year, is in good shape. For this 440Newton engine has to fire for 24 minutes on September 24 to put the spacecraft in the desired Martian orbit.

上周,印度空间研究组织(ISRO)科学家对该发动机输入了命令,以检查它的状态是否良好。自从去年12月离开地球以来,发动机已经休眠了近300天。9月24日,推力440牛顿的发动机将工作24分钟,把探测器送入预订火星轨道。

A2596BD15560B5B3EE6855E9597F7614

一名印度官员通过模型讲解火星探测器如何运转


What if it doesn't? That wouldn't be the end of the mission, but the alternative would not be a perfect end to the ambitious project. Plan B is to fire the eight thrusters originally meant for altitude control and orientation. Since these thrusters have less power (22Newton), they will have to be fired for a much longer duration, and yet the orbit achieved through this exercise would not be ideal to carry out studies of the red planet's atmosphere and morphology.

要是没有成功呢?那也不会是此次任务的终结。但是可供选择的方法将不会是这一雄心勃勃项目的完美结束。计划B是把原本用于高度控制和方向控制的8个推进器点上火。由于动力较小(22牛顿),这些推进器的工作时间将会长得多,而进入的轨道对我们执行火星大气层和形态的研究将不会理想。

"The difference between success and failure is very thin," Isro chairman K Radhakrishnan told TOI. "If the main engine fires, we will be able to get into a Martian orbit with a periapsis (closest point to Mars) of 423km and an apoapsis (farthest point) of 80,000km. Plan B will also help us get into an orbit, but at this point we don't know how close that would be."

“成功和失败就在毫厘之间,”ISRO主席K Radhakrishnan对《印度时报》说,“如果主发动机点火成功,我们将有能力进入近地点423公里和远地点8万公里的火星轨道。计划B也能够帮助我们进入一个轨道,但是此刻我们不知道那个轨道距离火星多近。”

20131105100442qaii2eg3

以下是《印度时报》读者的评论:


译文来源:三泰虎 http://www.santaihu.com



raviroy ()
Wishing ISRO all the best. I'm seriously nervous for you guys. Lets hope the probe has not gone into 'Safety Mode'.
Agree (1)Disagree (0)Recommend (1)

希望印度空间研究组织一切顺利。你们这些家伙让我好紧张啊。希望探测器不会进入“安全模式”

 
BM (Australia)
Keep your hopes high, we will win.

要信心满满,我们会胜利的

 
jiggsec (Chennai)
All are praying for the success of the mission.

所有人在为这次任务的成功祈祷

 
KIM D (Unknown)
Wish you good luck !! Millions would be anxious to know more information !!

希望你们好运!无数人在焦虑地等待进一步信息!

 
Babaji Barik (Bhubaneswar.)
It is a great moment for all indians for mom . Good luck

对印度人来说,这是一个伟大的时刻。好运吧

 
Hare Krushna (Unknown)
Good Luck ISRO !

祝印度空间研究组织好运!

此文由 三泰虎 编辑,未经允许不得转载!:首页 > 大杂烩 » 只要48小时就到火星,印度探测器今天面临大考验

()
分享到:

相关推荐