人人草人人-欧美一区二区三区精品-中文字幕91-日韩精品影视-黄色高清网站-国产这里只有精品-玖玖在线资源-bl无遮挡高h动漫-欧美一区2区-亚洲日本成人-杨幂一区二区国产精品-久久伊人婷婷-日本不卡一-日本成人a-一卡二卡在线视频

High-gain antenna on NASA's Europa Clipper spacecraft undergoes testing

Source: Xinhua| 2019-04-03 15:03:43|Editor: xuxin
Video PlayerClose

LOS ANGELES, April 2 (Xinhua) -- A full-scale prototype of the high-gain antenna (HGA) on NASA's Europa Clipper spacecraft is undergoing tests at NASA's Langley Research Center in Hampton, Virginia, according to a NASA release on Monday.

The antenna will take a long journey aboard NASA's Europa Clipper, a spacecraft that will conduct detailed reconnaissance of Jupiter's moon Europa to see whether the icy orb could harbor conditions suitable for life.

Scientists believe there is a massive salty ocean beneath Europa's icy surface. The antenna will beam back high-resolution images and scientific data from Europa Clipper's cameras and science instruments.

The 3-meter-tall full-scale prototype antenna, which is the same height as a standard basketball hoop, is in the Experimental Test Range (ETR) at NASA's Langley Research Center.

Researchers from NASA's Jet Propulsion Laboratory in Pasadena, California, the Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, and Langley are testing the prototype in the ETR, in order to assess its performance and demonstrate the high pointing accuracies required for the Europa Clipper mission.

The ETR is an indoor electromagnetic test facility that allows researchers to characterize transmitters, receivers, antennas and other electromagnetic components and subsystems in a scientifically controlled environment.

"Several years ago we scoured the country to find a facility that was capable of making the difficult measurements that would be required on the HGA and found that the ETR clearly was it,"said Thomas Magner, assistant project manager for Europa Clipper at the Applied Physics Laboratory.

"The measurements that will be performed in the ETR will demonstrate that the Europa Clipper mission can get a large volume of scientific data back to Earth, and ultimately determine the habitability of Europa," Magner said.

Tests on this prototype antenna are scheduled to wrap up soon, according to NASA. Researchers plan to return to the ETR in 2020 to conduct additional tests on Europa Clipper's high-gain antenna flight article.

Europa Clipper plans to launch in the 2020s, with travel time to Jupiter taking three to seven years, depending on the launch vehicle and which planetary alignments can be utilized, according to NASA.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001379465151
主站蜘蛛池模板: 色网站免费观看 | 福利片在线观看 | 国产乱性 | 中文字幕精品久久 | 久久的色偷偷 | 少妇av一区 | 日本最新中文字幕 | 中文在线一区二区 | 欧美 日本 国产 | 十八禁毛片| 色爱综合 | 亚洲色图视频在线 | 激情视频网 | 免费毛片一区二区三区久久久 | 精品日韩一区 | 美女视频一区二区 | 日韩欧美视频在线免费观看 | 懂色av中文一区二区三区天美 | 国产精品视频久久久久久 | 欧美成人精品二区三区99精品 | 午夜999| 亚洲国产成人久久 | 国产成人短视频在线观看 | 91看片网站| 欧美极品少妇xxxxⅹ喷水 | av在线观| 国产麻豆精品在线 | 91操碰| h片在线免费观看 | 国产另类av | 国产探花在线观看 | 欧美在线综合 | 国产麻豆一区二区 | 天堂免费av| 91大神视频在线播放 | 色一情一乱一伦 | 欧美成人一区二区在线 | 国产成人精品亚洲男人的天堂 | 日日操夜夜操天天操 | 不卡的av网站 | 97超碰资源站| 中文字幕精品亚洲 | 特级淫片裸体免费看 | 国产视频精品在线 | 日韩免费高清视频网站 | 国产亚洲二区 | 亚洲国产精品成人久久蜜臀 | 国产主播在线播放 | 亚洲人成电影在线 | 99er在线 | 9色91 | 顶级嫩模啪啪呻吟不断好爽 | 日本美女性高潮 | 亚洲天堂视频一区 | 99ri视频| 国产又粗又大又长 | 国产日产亚洲精品 | 爱涩av| 美日韩免费视频 | 激烈的性高湖波多野结衣 | 奇米四色影视 | 丰满少妇被猛烈进入高清播放 | 婷婷爱五月天 | 北岛玲av | 超碰在线观看av | 亚洲女同av | 午夜视频成人 | 中文字幕精品久久 | 国产午夜精品一区二区三区视频 | 亚洲激情视频在线 | 人妻精品久久久久中文字幕69 | 蜜桃av乱码一区二区三区 | 免费毛片a | 色激情综合 | 欧美韩一区二区 | 超碰伊人网 | 强伦轩人妻一区二区电影 | 亚洲国产精品成人综合久久久 | 丁香婷婷视频 | 日韩三级网 | 亚洲热视频 | 欧美一区二区激情视频 | 四虎影视www在线播放 | h视频在线观看网站 | 嫩草影院在线观看视频 | 就去色av | 黄色资源在线 | 免费国产成人 | 中文字幕乱码视频 | 香蕉av一区 | 国产中文字幕免费 | 男女操操操 | 欧美另类在线观看 | 国产三级做爰高清在线 | 一区二区三区免费在线视频 | 久久麻豆视频 | 日韩天堂在线观看 | 亚洲国产电影在线观看 | 国产精品啊啊啊 |