Measuring the Orbit Drift of Near-Earth Asteroids by the Yarkovsky Effect
The Yarkovsky effect causes the semimajor axis drift of near-Earth asteroids. The drift can be detected by a precise orbit determination process. Using the proposed algorithm, 2233 out of 27,078 near-Earth asteroids are chosen as the initial candidates. Out of these initial candidates, 769 have a me...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2023-01-01
|
| Series: | The Astrophysical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4357/accc81 |
| _version_ | 1797698484194770944 |
|---|---|
| author | Xin Liu Xi-Yun Hou Zhi-Tao Yang Qing-Bo Gan Yao Zhang |
| author_facet | Xin Liu Xi-Yun Hou Zhi-Tao Yang Qing-Bo Gan Yao Zhang |
| author_sort | Xin Liu |
| collection | DOAJ |
| description | The Yarkovsky effect causes the semimajor axis drift of near-Earth asteroids. The drift can be detected by a precise orbit determination process. Using the proposed algorithm, 2233 out of 27,078 near-Earth asteroids are chosen as the initial candidates. Out of these initial candidates, 769 have a measurable Yarkovsky effect with a signal-to-noise ratio (S/N) larger than 1, and 166 have a measurable Yarkovsky effect with an S/N larger than 3. The ratio between retrograde and prograde near-Earth asteroids is plotted with respect to their size. An average ratio of 2 is found for asteroids with an absolute magnitude between 14 and 21. The measurement work is carried out based on orbit determination software developed by the authors that considers a high-precision dynamical model. |
| first_indexed | 2024-03-12T03:54:47Z |
| format | Article |
| id | doaj.art-7b85b3f2b0c34ea198a5c662c5c9c28f |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T03:54:47Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-7b85b3f2b0c34ea198a5c662c5c9c28f2023-09-03T12:03:07ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0195015010.3847/1538-4357/accc81Measuring the Orbit Drift of Near-Earth Asteroids by the Yarkovsky EffectXin Liu0Xi-Yun Hou1Zhi-Tao Yang2Qing-Bo Gan3Yao Zhang4School of Astronomy and Space Science, Nanjing University , Nanjing 210023, People's Republic of China ; houxiyun@nju.edu.cn; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) , Ministry of Education, People's Republic of China; Institute of Space Environment and Astrodynamics, Nanjing University , Nanjing 210023, People's Republic of ChinaSchool of Astronomy and Space Science, Nanjing University , Nanjing 210023, People's Republic of China ; houxiyun@nju.edu.cn; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) , Ministry of Education, People's Republic of China; Institute of Space Environment and Astrodynamics, Nanjing University , Nanjing 210023, People's Republic of ChinaNational Astronomical Observatories , Beijing 100101, People's Republic of ChinaNational Astronomical Observatories , Beijing 100101, People's Republic of ChinaNational Astronomical Observatories , Beijing 100101, People's Republic of ChinaThe Yarkovsky effect causes the semimajor axis drift of near-Earth asteroids. The drift can be detected by a precise orbit determination process. Using the proposed algorithm, 2233 out of 27,078 near-Earth asteroids are chosen as the initial candidates. Out of these initial candidates, 769 have a measurable Yarkovsky effect with a signal-to-noise ratio (S/N) larger than 1, and 166 have a measurable Yarkovsky effect with an S/N larger than 3. The ratio between retrograde and prograde near-Earth asteroids is plotted with respect to their size. An average ratio of 2 is found for asteroids with an absolute magnitude between 14 and 21. The measurement work is carried out based on orbit determination software developed by the authors that considers a high-precision dynamical model.https://doi.org/10.3847/1538-4357/accc81Near-Earth objectsOrbit determinationAstrometry |
| spellingShingle | Xin Liu Xi-Yun Hou Zhi-Tao Yang Qing-Bo Gan Yao Zhang Measuring the Orbit Drift of Near-Earth Asteroids by the Yarkovsky Effect The Astrophysical Journal Near-Earth objects Orbit determination Astrometry |
| title | Measuring the Orbit Drift of Near-Earth Asteroids by the Yarkovsky Effect |
| title_full | Measuring the Orbit Drift of Near-Earth Asteroids by the Yarkovsky Effect |
| title_fullStr | Measuring the Orbit Drift of Near-Earth Asteroids by the Yarkovsky Effect |
| title_full_unstemmed | Measuring the Orbit Drift of Near-Earth Asteroids by the Yarkovsky Effect |
| title_short | Measuring the Orbit Drift of Near-Earth Asteroids by the Yarkovsky Effect |
| title_sort | measuring the orbit drift of near earth asteroids by the yarkovsky effect |
| topic | Near-Earth objects Orbit determination Astrometry |
| url | https://doi.org/10.3847/1538-4357/accc81 |
| work_keys_str_mv | AT xinliu measuringtheorbitdriftofnearearthasteroidsbytheyarkovskyeffect AT xiyunhou measuringtheorbitdriftofnearearthasteroidsbytheyarkovskyeffect AT zhitaoyang measuringtheorbitdriftofnearearthasteroidsbytheyarkovskyeffect AT qingbogan measuringtheorbitdriftofnearearthasteroidsbytheyarkovskyeffect AT yaozhang measuringtheorbitdriftofnearearthasteroidsbytheyarkovskyeffect |