基于多应用巡天望远镜阵的近地天体巡天规划模型研究  

A Near-Earth Object Survey Planning Model for Multi-Application Survey Telescope Array

作　　者：庄彧怡 平一鼎[1] 赵海斌[1] ZHUANG Yu-yi;PING Yi-ding;ZHAO Hai-bin(Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing 210023;School of Astronomy and Space Science,University of Science and Technology of China,Hefei 230026)

机构地区：[1]中国科学院紫金山天文台,南京210023 [2]中国科学技术大学天文与空间科学学院,合肥230026

出　　处：《天文学报》2025年第2期95-106,共12页Acta Astronomica Sinica

基　　金：国家重点研发计划项目(2023YFA1608100);空间碎片与近地小行星防御科研项目(KJSP2020020204);小行星基金会资助。

摘　　要：近地小行星(Near-Earth Asteroids,NEAs)对全球安全构成威胁已成共识,对其探测具有重大意义.多应用巡天望远镜阵(Multi-Application Survey Telescope Array,MASTA)具有的大视场、多望远镜、较大口径等特点非常契合小行星探测的需求,它的加入可显著提升我国的近地小行星探测能力.为发挥MASTA的近地小行星探测优势,提出了一种近地天体巡天策略,并基于整数线性规划方法,提出了巡天规划模型.为评估该模型的表现以及在此模型下MASTA的近地小行星探测效能,通过扩充样本建立了观测目标集,并进行了一年的近地天体巡天仿真.仿真结果表明:巡天规划模型能够较好地满足MASTA近地天体巡天的需求;能够优化近地天体巡天项目的观测资源配置,兼顾MASTA的其他科学目标;MASTA一年探测的近地小行星数量可达其预估样本的1.29%.It has become a consensus that near-Earth asteroids(NEAs)threaten global security,thus the detection of them is of great significance.The Multi-Application Survey Telescope Array(MASTA)features a large field of view,multiple telescopes,and a large aperture.It is fully suitable for the needs of asteroid detection.Its addition can significantly improve domestic capabilities of detecting near-Earth asteroids.In order to give full play to MASTA’s advantages in detecting near-Earth asteroids,a survey strategy is proposed,and a survey planning model is built based on the integer linear programming model.To evaluate the performance of this model and the near-Earth asteroid detection efficiency of MASTA under this model,a set of simulated asteroids is created by expanding the known near-Earth asteroid samples,and a one-year near-Earth object survey simulation is conducted.Simulation results show that the survey planning model can well meet the needs of MASTA’s near-Earth object survey;it can optimize the observation resource allocation of near-Earth object survey and take into account MASTA’s other scientific goals;the number of near-Earth asteroids detected by MASTA in a year can reach 1.29%of its estimated sample size.

关 键 词：望远镜 近地小行星 巡天 优化算法 方法:分析 

分 类 号：P185[天文地球—天文学]