Astrometric Parallax Measurements with JWST for Localization of Near-Earth Objects

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Hauptverfasser: Elango, Sriram, Loeb, Abraham
Format: Preprint
Veröffentlicht: 2025
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author Elango, Sriram
Loeb, Abraham
author_facet Elango, Sriram
Loeb, Abraham
contents We propose the use of the James Webb Space Telescope (JWST) in simultaneous observations with an Earth-based telescope for parallax measurements to tightly constrain the orbital trajectory of hazardous near-Earth objects (NEOs). We demonstrate the significant reduction in localization error with varying epochs of observation at the potential time-of-impact via a Monte Carlo simulated case study of 2024 YR4, an Apollo-type near-Earth asteroid. By leveraging the L2-Earth baseline and the considerable parallax angles formed, we highlight the unexplored potential for improved localization of NEOs through parallax observations with JWST.
format Preprint
id arxiv_https___arxiv_org_abs_2504_04003
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Astrometric Parallax Measurements with JWST for Localization of Near-Earth Objects
Elango, Sriram
Loeb, Abraham
Earth and Planetary Astrophysics
Instrumentation and Methods for Astrophysics
We propose the use of the James Webb Space Telescope (JWST) in simultaneous observations with an Earth-based telescope for parallax measurements to tightly constrain the orbital trajectory of hazardous near-Earth objects (NEOs). We demonstrate the significant reduction in localization error with varying epochs of observation at the potential time-of-impact via a Monte Carlo simulated case study of 2024 YR4, an Apollo-type near-Earth asteroid. By leveraging the L2-Earth baseline and the considerable parallax angles formed, we highlight the unexplored potential for improved localization of NEOs through parallax observations with JWST.
title Astrometric Parallax Measurements with JWST for Localization of Near-Earth Objects
topic Earth and Planetary Astrophysics
Instrumentation and Methods for Astrophysics
url https://arxiv.org/abs/2504.04003