親子觀星會

討論區 => 天文新知 => 主題作者是: peter 於 2021-01-30 10:03:12



主題: 各類重力助推 MEGA +EEJ trajectory彈道
作者: peter2021-01-30 10:03:12
EMEJ (MEGA) trajectory for Europa Clipper

Mars-Earth-Gravity-Assist   trajectory

https://space.stackexchange.com/questions/49817/why-is-nasa-proposing-an-emej-mega-trajectory-for-europa-clipper-instead-of-ee

=> https://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=27663.0


主題: 回覆: 歐羅巴快帆 MEGA trajectory
作者: peter2021-01-30 10:04:55
https://www.sciencedirect.com/science/article/pii/S0094576515002283

Incremental planning of multi-gravity assist trajectories


主題: 回覆: 歐羅巴快帆 MEGA trajectory
作者: peter2021-01-30 10:08:39
EEJ  Earth Earth Jupiter   trajectory


主題: 回覆: 歐羅巴快帆 MEGA trajectory
作者: peter2021-01-30 10:08:53
https://technews.tw/2020/12/15/solar-system-highway-jupiter-neptune/

重力助推  gravity assist
https://zh.wikipedia.org/wiki/%E9%87%8D%E5%8A%9B%E5%8A%A9%E6%8E%A8
在航天動力學和宇宙空間動力學中,所謂的重力助推(gravity assist;也被稱為重力彈弓效應或繞行星變軌


主題: 回覆: 各類重力助推 MEGA +EEJ trajectory彈道
作者: peter2021-01-30 10:16:56
JUNO  用EEJ

朱諾號在2013年10月9日再次飛近地球,利用地球進行重力助推,從而從內太陽系繞進木星


https://trajbrowser.arc.nasa.gov/traj_browser.php?NEAs=on&NECs=on&chk_maxMag=on&maxMag=25&chk_maxOCC=on&maxOCC=4&chk_target_list=on&target_list=Jupiter&mission_class=oneway&mission_type=rendezvous&LD1=2024&LD2=2025&maxDT=7.0&DTunit=yrs&maxDV=10.0&min=DV&wdw_width=-1&submit=Search#a_load_results

Trajectory Search

This page features a tool to find spacecraft trajectories to planets and small-bodies. For ideas of what to search for, view the example queries page. A user guide is also available explaining search constraints, the methodology behind trajectory computations and the important limitations of the tool.