无码少妇一区二区三区免费,妓院一钑片免看黄大片,国语自产视频在线,亚洲AV成人无码国产一区二区,激情久久综合精品久久人妻,日韩免费毛片,综合成人亚洲网友偷自拍,国内自拍视频在线观看,欧美熟妇性xxxx交潮喷,国产成人精品一区二免费网站

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
丝袜人妻一区二区三区网站| 国产在线白浆一区二区三区在线| 性色AV一区二区三区人妻| 精品亚洲女同一区二区| 国产呦精品一区二区三区下载| 国产精品久久久久久久专区| а∨天堂一区中文字幕| 国产人成精品香港三级古代| 国产一区日韩二区欧美三区| 欧美另类高清zo欧美| 国产亚洲成av片在线观看| 成人无码精品免费视频在线观看 | 特级做a爰片毛片免费69| 亚洲码国产精品高潮在线| 日本精品中文字幕在线不卡| 欧美13一14娇小xxxx| 一二三区国产精品久久| 亚洲欧美尹人综合网站| 特级毛片a级毛片免费观看网站| 久久日韩精品一区二区五区| 少妇高潮喷水久久久久久久久久| 国产成人亚洲综合小说区| 2021国产麻豆剧传媒精品入口| 亚洲国产成人无码网站| 好男人视频www在线观看| 日韩欧美一区二区三区不卡| 国产盗摄老熟女视频一区二区三区| 亚洲中文字幕在线二页| 亚洲国产精品黑人久久久 | 四川丰满少妇无套内谢| 国产呦交精品免费视频| 亚洲午夜理论无码电影| 激情综合网激情五月我去也| 国产福利片无码区在线观看| 亚洲av有码在线天堂| 欧美无专区| 真实单亲乱l仑对白视频| 久久黄色小视频| 天堂岛国精品在线观看一区二区 | 亚洲中文字幕伊人久久无码| 五月婷婷久久中文字幕|