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[已完成翻译] 乱翻的…………

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发表于 2006-3-2 13:00:42 | 显示全部楼层 |阅读模式
130425星团人注:
这里翻译了不少“新闻”,原文部分可查,译文似乎哪里都没有发布




试着翻译了一点感兴趣的东西,水平有限所以讨论一下有没有翻译错误:)              我承认是在词典帮助下完成的

NEO News (03/01/06) New Torino 2 asteroid VD17

This first NEO News of 2006 discusses four topics related to NEOs and
the impact hazard.
2006年NEO讨论新闻中有四项与“近地物体”及其撞击风险有关。

(1) Report on NEA 2004 VD17, which is now classed on the NASA/JPL NEO
webpage as Torino Scale 2, based on a probability of impact of nearly
1 in 1000 during the close pass of May 4, 2102.
2004年报告的近地小行星VD17现已在NASA/JPL NEO网页被列为Torino Scale 2,预计在2102年5月4日有接近1/1000的可能撞上地球。

(2) Preliminary note on a conference on planetary defense to be held
in Washington DC a year from now, March 5-8, 2007.
行星防御的初步讨论会将在2007年3月5-8日在华盛顿召开。

(3) Press report on an "indefinite postponement" in the launch of the
main-belt asteroid mission Dawn, which is to orbit Ceres and Vesta.
向小行星带的谷神星和灶神星发射的Dawn任务会有不确定的延期

(4) Part of a letter from The Planetary Society discussing their
contributions to studies of NEAs.
部分文字来自星星协会讨论他们对近地小行星研究的贡献。

=======================================

ASTEROID 2004 VD17 CLASSED AS TORINO SCALE 2

At the end of February, orbital calculations for near-earth-asteroid
(NEA) 2004 VD17 indicated that the risk of an impact within the next
century (specifically on May 4, 2102) was higher than that of any
other known asteroid. The probability, based on 687 telescopic
observations spanning 475 days, is listed on the NASA/JPL NEO Program
webpage as a bit less than 1 in 1000. This probability, while small,
raises the possible 2102 impact to a Torino scale value of 2
(meriting attention from astronomers), which is higher than any other
asteroid. (Note: the impact probability for 1950 DA is larger, but
since this hazard is not realized until 2080, it falls outside the
one-century range of the Torino scale).
二月底,轨道计算表明近地小行星(NEA)2004 VD17 在下世纪(确切日期2102年5月4日)有已知最高的撞击风险。基于687台望远镜475天的观测,撞击可能性比千分之一略低。将Torino撞击的可能性提高到了2级(以便引起天文学家的注意),虽然这个概率很小,但是比其他小行星都要高。(虽然1950 DA的撞击可能性较高,但其危险在2080年,所以世纪风险在Torino scale排行上较低)

Judging from its brightness, NEA 2004 VD17 has a nominal diameter
near 500 m and a mass of nearly a billion tons. While below the
threshold for a global catastrophe, the nominal impact energy of more
than 10,000 megatons is comparable to all the world's nuclear
arsenals. There are no radar observations available, and the asteroid
has not been characterized in any detail, so all these numbers should
be taken as approximate.
基于其亮度,NEA 2004 VD17 直径接近500m,质量接近10亿吨。低于全球灾难的下限。名义上的“撞击”能量超过一万颗百万吨级当量的核弹,与全球核武库的规模相当。由于没有无线电观测,并且没有获得小行星的任何细节特征,所有的数据都是近似值。

For comparison, NEA Apophis (formerly 2004 MN4) is currently listed
on the NEO webpage as Torino scale 1, with an impact probability on
April 13, 2036, of about 1 part in 5000. Apophis is also smaller,
with a nominal diameter of 300 m and mass of less than 100 million
tons. These are the only two asteroids currently with a Torino Scale
listing of greater than 0.
在NEO网页上近地小行星Apophis(也就是2004 MN4)现已被列为Torino scale 1,在2036年4月13日撞击可能性五千分之一。Apophis比较小,直径约300m,质量约10亿吨。这是仅有的两颗Torino Scale列表中等级超过0的小行星。

Fortunately, it is nearly a century before the close pass from VD17.
This should provide ample time to refine the orbit and, most
probably, determine that the asteroid will miss the Earth. On the
other hand, there are no near-term opportunities for additional
observations, so VD17 will probably remain at Torino scale 2 for
quite some time.
幸运的是在近距接触前有一个世纪的时间。这将有充足的时间精确其轨道,很有可能确定小行星会与地球擦身而过。另一方面,由于没有机会作近距离观测,VD17 将在Torino scale 2的位置待上很长一段时间。

All the above information is taken from the NASA/JPL NEO Program
Office webpage at http://neo.jpl.nasa.gov.
以上信息来自NASA/JPL NEO 项目官方网站

================================

PLANETARY DEFENSE CONFERENCE PLANNED FOR MARCH 2007

Plans are underway for a planetary defense conference in 2007. This
second international conference on protecting planet Earth from
threatening asteroids and comets will be held at George  Washington
University in Washington, D.C., on March 5-8, 2007. The primary
sponsor is the American Institute of Aeronautics and Astronautics
(AIAA). Recommendations from a similar conference in 2004 can be
accessed at http://www.planetarydefense.info.
行星防御会议计划2007年3月召开
第二届保护地球防御小行星、彗星的国际会议将于2007年3月5-8日在华盛顿大学召开。
会议的主要发起人是美国航空航天学会(AIAA)。2004年的相同会议情况可访问http://www.planetarydefense.info

Experts from around the world will discuss how we detect and
characterize threatening objects, the techniques we might use to
deflect an object should one be detected, the effects an impact could
have, how we would prepare for a disaster of this type, and
political, policy, and legal issues that would affect the decision on
what to do  about a threat. The objective of the conference is to
assess our current understanding of impact threats and the limits of
our ability to deflect an oncoming asteroid, and to develop
recommendations for how we can improve our ability to protect the
planet.
来自全球的专家将讨论如何发现并描绘有威胁的物体,对可能用于偏转物体的技术进行检测,
一次冲击的影响以及面对此类天灾应如何准备,政治、政策和法律方面的问题将如何影响面对
威胁时应采取的对策。会议的目的在于评估我们现有的对冲击威胁的认识,对于来临的小行星
我们能使其偏离的限度,如何提升保护地球的能力。

=============================
(先挖个坑)

[ Last edited by lightwing on 2006-3-3 at 14:57 ]

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参与人数 2基本分 +100 维基拼图 +60 收起 理由
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发表于 2006-3-3 10:34:19 | 显示全部楼层
这个是和orbit@home项目有关的吗?

// 刚才乍一眼看上去,NEO和eOn搞混了...
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 楼主| 发表于 2006-3-3 11:25:15 | 显示全部楼层
嗯……应该是没有关系。NEO:near earth object
但是希望orbit能早点获得资金,这些碎石实在是太危险了…………
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