Modeling Binary Asteroids: Integrating Orbital and Rotational Motion for Physical Property Inversion
The field of space science places significant emphasis on deep space exploration, with a particular focus on asteroids as a potential hazard to humanity. Inverting their physical characteristics from photometric observations is essential for uncovering their origins and evolution. This article attem...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2024-01-01
|
| Series: | The Astrophysical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4357/ad0b0e |
| _version_ | 1797349061184978944 |
|---|---|
| author | Xiao-Ping Lu Yong-Xiong Zhang Hai-Bin Zhao Hua Zheng Kai-Chang Di |
| author_facet | Xiao-Ping Lu Yong-Xiong Zhang Hai-Bin Zhao Hua Zheng Kai-Chang Di |
| author_sort | Xiao-Ping Lu |
| collection | DOAJ |
| description | The field of space science places significant emphasis on deep space exploration, with a particular focus on asteroids as a potential hazard to humanity. Inverting their physical characteristics from photometric observations is essential for uncovering their origins and evolution. This article attempts to present a solution to the challenging task of estimating the physical properties of binary asteroids, which are common in near-Earth asteroids larger than 200 meters. A novel model for binary asteroids is proposed, which integrates orbital and rotational motions to simulate brightness variations based on two Cellinoid shapes. The model combines the projection and occultation effects of the shapes to generate the simulated brightness. The inversion of determining physical properties is optimized based on the Levenberg–Marquardt algorithm through a simulation process involving several parameter corrections. Finally, the performance of the proposed model is demonstrated through numerical experiments and applications to two real binary asteroids, namely, asteroid (317) Roxane and asteroid (624) Hektor. The derived results are nearly identical to those from other publications, which confirms that the proposed model provides reliable and accurate estimations of the physical properties of binary asteroids. Additionally, this method has a potential application in supporting the development of effective strategies for the Double Asteroid Redirection Test (DART) project, the first planetary defense experiment in space undertaken by humans. |
| first_indexed | 2024-03-08T12:15:28Z |
| format | Article |
| id | doaj.art-e9d3a574b4284d92bccf21df2502d084 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-08T12:15:28Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-e9d3a574b4284d92bccf21df2502d0842024-01-22T14:04:47ZengIOP PublishingThe Astrophysical Journal1538-43572024-01-01961215410.3847/1538-4357/ad0b0eModeling Binary Asteroids: Integrating Orbital and Rotational Motion for Physical Property InversionXiao-Ping Lu0https://orcid.org/0000-0002-2363-4175Yong-Xiong Zhang1Hai-Bin Zhao2Hua Zheng3Kai-Chang Di4School of Computer Science and Engineering, Macau University of Science and Technology , Taipa, Macau, People’s Republic of China ; xplu@must.edu.mo, zhangyx@gzgs.edu.cn; State Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology , Macau, People’s Republic of ChinaSchool of Computer Science and Engineering, Macau University of Science and Technology , Taipa, Macau, People’s Republic of China ; xplu@must.edu.mo, zhangyx@gzgs.edu.cn; School of Engineering and Technology, Guangzhou College of Technology and Business , Guangzhou 510850, People’s Republic of ChinaKey Laboratory of Planetary Sciences , Purple Mountain Observatory, CAS, Nanjing 210023, People’s Republic of China ; meteorzh@pmo.ac.cn; School of Astronomy and Space Science, University of Science and Technology of China , Hefei 230026, People's Republic of China; CAS Center for Excellence in Comparative Planetology , CAS, Hefei 230026, People's Republic of ChinaSchool of Mathematics and Statistics, Shaoguan University , Shaoguan 512005, People’s Republic of China ; hzheng@sgu.edu.cnState Key Laboratory of Remote Sensing Science , Beijing 100101, People’s Republic of China ; kcdi@irsa.ac.cn; Institute of Remote Sensing Applications, Chinese Academy of Sciences , Beijing 100101, People’s Republic of ChinaThe field of space science places significant emphasis on deep space exploration, with a particular focus on asteroids as a potential hazard to humanity. Inverting their physical characteristics from photometric observations is essential for uncovering their origins and evolution. This article attempts to present a solution to the challenging task of estimating the physical properties of binary asteroids, which are common in near-Earth asteroids larger than 200 meters. A novel model for binary asteroids is proposed, which integrates orbital and rotational motions to simulate brightness variations based on two Cellinoid shapes. The model combines the projection and occultation effects of the shapes to generate the simulated brightness. The inversion of determining physical properties is optimized based on the Levenberg–Marquardt algorithm through a simulation process involving several parameter corrections. Finally, the performance of the proposed model is demonstrated through numerical experiments and applications to two real binary asteroids, namely, asteroid (317) Roxane and asteroid (624) Hektor. The derived results are nearly identical to those from other publications, which confirms that the proposed model provides reliable and accurate estimations of the physical properties of binary asteroids. Additionally, this method has a potential application in supporting the development of effective strategies for the Double Asteroid Redirection Test (DART) project, the first planetary defense experiment in space undertaken by humans.https://doi.org/10.3847/1538-4357/ad0b0eSolar systemAsteroids |
| spellingShingle | Xiao-Ping Lu Yong-Xiong Zhang Hai-Bin Zhao Hua Zheng Kai-Chang Di Modeling Binary Asteroids: Integrating Orbital and Rotational Motion for Physical Property Inversion The Astrophysical Journal Solar system Asteroids |
| title | Modeling Binary Asteroids: Integrating Orbital and Rotational Motion for Physical Property Inversion |
| title_full | Modeling Binary Asteroids: Integrating Orbital and Rotational Motion for Physical Property Inversion |
| title_fullStr | Modeling Binary Asteroids: Integrating Orbital and Rotational Motion for Physical Property Inversion |
| title_full_unstemmed | Modeling Binary Asteroids: Integrating Orbital and Rotational Motion for Physical Property Inversion |
| title_short | Modeling Binary Asteroids: Integrating Orbital and Rotational Motion for Physical Property Inversion |
| title_sort | modeling binary asteroids integrating orbital and rotational motion for physical property inversion |
| topic | Solar system Asteroids |
| url | https://doi.org/10.3847/1538-4357/ad0b0e |
| work_keys_str_mv | AT xiaopinglu modelingbinaryasteroidsintegratingorbitalandrotationalmotionforphysicalpropertyinversion AT yongxiongzhang modelingbinaryasteroidsintegratingorbitalandrotationalmotionforphysicalpropertyinversion AT haibinzhao modelingbinaryasteroidsintegratingorbitalandrotationalmotionforphysicalpropertyinversion AT huazheng modelingbinaryasteroidsintegratingorbitalandrotationalmotionforphysicalpropertyinversion AT kaichangdi modelingbinaryasteroidsintegratingorbitalandrotationalmotionforphysicalpropertyinversion |