التفاصيل البيبلوغرافية
| العنوان: |
Transversal Yarkovsky acceleration for Apophis through jet transport. |
| المؤلفون: |
Benet, Luis1 (AUTHOR) benet@icf.unam.mx, Pérez Hernández, Jorge A.2 (AUTHOR) perez.hz@gmail.com |
| المصدر: |
Proceedings of the International Astronomical Union. Dec2022, Vol. 18 Issue S382, p59-65. 7p. |
| مصطلحات موضوعية: |
*OPTICAL radar, *JET transports, *AUTOMATIC differentiation, *ASTROMETRY, *TRANSVERSAL lines |
| مستخلص: |
In this contribution we describe the jet transport techniques that we used in Pérez-Hernández and Benet (2022) for the estimation of the Yarkovsky transversal acceleration for (99942) Apophis, which included optical and radar astrometry observations obtained during 2021 Apophis' fly-by. Our numerical approach exploits automatic differentiation techniques which improve the orbital determination problem. We obtain a non-zero Yarkovsky parameter A 2 = (−2.899±0.025) × 10−14 au d−2 which is consistent with other recent determinations of this parameter. Our results allow to constrain the collision probabilities for the close approaches in 2029, 2036 and 2068. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
Academic Search Index |