Analysis of the Impact of Large Constellations on the Space Debris Environment and Countermeasures  

低轨大规模星座对空间碎片环境的影响及其应对措施

作　　者：CHEN Chuan YANG Wulin GONG Zizheng ZHANG Pinliang LI Ming 

机构地区：[1]Beijing Institute of Spacecraft Environment Engineering,Beijing 100094 [2]National Key Laboratory of Science and Technology on Reliability and Environment Engineering,Beijing 100094 [3]China Academy of Space Technology,Beijing 100094

出　　处：《Aerospace China》2020年第2期16-22,共7页中国航天（英文版）

摘　　要：Large constellations have developed rapidly in recent years because of their unique advantages, but they will inevitably have a major negative impact on the space debris environment, leading to its deterioration. The key to mitigate the impact is the success rate and duration of the post-mission disposal(PMD) process. Aiming at solving this problem, this paper further studies the impact of large constellations on other space assets under different PMD strategies through simulation, and proposes corresponding strategies and suggestions for mitigation.According to One Web’s large constellation launch plan, the dangerous intersection of the large constellation with existing space assets at different stages of the constellations life cycle is calculated by simulation. Based on this, the influence of the large constellation operation on existing space assets at different times and strategies of PMD is analyzed. The conclusion shows that in the PMD stage, large constellations have the greatest impact on existing space assets;the PMD duration and number of satellites performing PMD at the same time are key factors to the degree of negative impact. The faster the PMD is, the less threat it poses to other spacecraft. More results and conclusions are still being analyzed.

关 键 词：large constellations space debris environment long-term environmental evolution impact probability dangerous intersection coping strategies 

分 类 号：V528[航空宇航科学与技术—人机与环境工程]