QQ登录

只需一步,快速开始

[新闻] Assembly begins for NASA’s Mercury space probe

[复制链接]
Shea 发表于 2003-3-19 16:17 | 显示全部楼层 |阅读模式 来自: 中国–江苏–南京 教育网/南京大学教育网

马上注册,结交更多好友,享用更多功能,让你轻松玩转社区。

您需要 登录 才可以下载或查看,没有账号?加入牧夫(请注明天文爱好者,否则无法通过审核,请勿使用gmail/outlook/aol/icloud邮箱注册)

×
Assembly begins for NASA's Mercury space probe
JHU-APL NEWS RELEASE
Posted: March 18, 2003

Start the countdown clock at one year: the effort to assemble and test the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft, set to embark next March on an historic voyage to the innermost planet, is well under way.

On Feb. 3, MESSENGER's integrated propulsion system and structure arrived at The Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Md., which is building the remainder of the spacecraft and manages the Discovery-class mission for NASA. Having already completed the first round of vibration tests and a thermal "bake out" to clean the structure, the MESSENGER team will start installing electronic components on the craft in April.

The frame for MESSENGER's signature sunshade - which will protect the craft and its instruments from the intense heat at Mercury - is due to arrive this week from GenCorp Aerojet. Layers of ceramic fabric will be added to the frame at APL over the next two months.

MESSENGER's seven scientific instruments - being provided by APL, NASA's Goddard Space Flight Center in Greenbelt, Md., the University of Colorado, Boulder, and the University of Michigan, Ann Arbor - are expected to arrive later this spring. Integration and testing will continue at APL through early September, and then MESSENGER heads to Goddard Space Flight Center for additional prelaunch space-environment tests.

In early January, MESSENGER is scheduled to leave Goddard for Kennedy Space Center, Fla., in final preparation for its March 2004 launch aboard a Boeing Delta II rocket.

After launch and a 5-year journey through the inner solar system, MESSENGER will orbit Mercury for one Earth year, providing the first images of the entire planet and collecting information on the composition and structure of Mercury's crust, its geologic history, the nature of its thin atmosphere and active magnetosphere, and the makeup of its core and mysterious polar materials. While cruising to Mercury the spacecraft will fly past the planet twice - in 2007 and 2008 - snapping pictures and gathering data critical to planning the orbit study that begins in April 2009. MESSENGER will also fly by Venus in 2004 and 2006.
安徽无极 发表于 2003-3-20 08:30 | 显示全部楼层 来自: 中国–安徽–宣城 电信
天,看到这个头疼也,附上中文岂不更好么
回复 顶~ 砸~

使用道具 举报

 楼主| Shea 发表于 2003-3-23 07:58 | 显示全部楼层 来自: 中国–江苏–南京 教育网/南京大学教育网
那就有劳安徽无极版主翻译一下吧……
回复 顶~ 砸~

使用道具 举报

Steed_Joy 发表于 2003-3-23 13:37 | 显示全部楼层 来自: 中国–安徽–合肥 电信/中国科学技术大学
水星探测器开始组装.
回复 顶~ 砸~

使用道具 举报

本版积分规则

APP下載|手机版|爱牧夫天文淘宝店|牧夫天文网 ( 公安备案号21021102000967 )|网站地图|辽ICP备19018387号

GMT+8, 2025-5-5 12:22 , Processed in 0.086342 second(s), 8 queries , Gzip On, Redis On.

Powered by Discuz! X3.5 Licensed

Copyright © 2001-2020, Tencent Cloud.

快速回复 返回顶部 返回列表