| 词条 | Atmosphere-Space Transition Region Explorer |
| 释义 |
Atmosphere-Space Transition Region Explorer (ASTRE) is a mission concept proposed in 2011 to NASA's Medium-Class Explorers program (MIDEX) to study the interaction between the Earth's atmosphere and the ionized gases in outer space in an effort to understand how space-induced currents in electric power grids originate, as well as improve satellite drag models.[1] The spacecraft would measure ionized gases within the transition region/boundary layer between 150-250 km altitude.[2][3] The concept was not selected for development at that time. The Principal Investigator is Robert F. Pfaff from the Goddard Space Flight Center in Greenbelt, Maryland.[1] References1. ^1 NASA - NASA Selects Science Investigations For Concept Studies. {{Explorer program}}{{Use American English|date=January 2014}}{{US-spacecraft-stub}}2. ^[https://agu.confex.com/agu/2018tess/preliminaryview.cgi/Paper335883.html The Atmosphere-Space Transition Region Explorer (ASTRE) -- Using in situ Measurements on a Low Perigee Satellite to Understand How the Upper Atmosphere and Magnetosphere are Coupled]. Robert F Pfaff Jr. Triennial Earth-Sun Summit. 3. ^Atmosphere-Space Transition Region Explorer (ASTRE). Robert F. Pfaff. 11 December 2011. Transcription from a presentation. 2 : Proposed spacecraft|Explorers program (NASA) |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。