日本无限资源_福禄影院午夜伦_美国av毛片_亚洲自拍在线观看_激情亚洲一区国产精品_999久久久久

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: 欧美精品一区在线 | 区二区三区在线 | 三区四区不卡 | 出租屋嫖妓大龄熟妇露脸在线播放 | 理论片在线国产精品 | 日韩久久久久久久久 | 吃奶呻吟打开双腿做受在线视频 | 超碰在线公开免费 | 丰满少妇xxxx| 国产自在自线午夜精品视频 | a亚洲视频| 日韩一区二区三区视频在线观看 | 九九九九九少妇爽黄大片 | 一区二区在线不卡 | 99热1| 一级片国产片 | 国产在线观看91精品 | 欧美天堂在线视频 | 欧美黄色aaaa | 黄色在线观看视频网站 | 亚洲人成网站在线播放942 | 超碰在线94 | 欧美特黄视频在线观看 | 国产成人综合精品无码 | 欧美xxxav | 色综合一 | 久久综合亚洲 | 绯色av一区二区三区免费看 | 一夜新娘第三季在线观看 | 91久久久亚洲精品 | 一本到国产在线精品国内 | 4p在线观看| 九色国产在线观看 | 亚洲一二区视频 | 东京亚洲区卡不 | 在线观看片免费人成视频播放 | 色呦呦网站入口 | 男同GAY毛片免费可播放 | 欧美特黄视频在线观看 | 国产一级淫片一三区 | 香港a毛片免费全部播放 |