Localizing the First Interstellar Meteor with Seismometer Data

Author:

Siraj Amir1ORCID,Loeb Abraham1

Affiliation:

1. Department of Astronomy, Harvard University, 60 Garden Street, Cambridge, MA 02138, USA

Abstract

The first meter-scale interstellar meteor (IM1) was detected by US government sensors in 2014, identified as an interstellar object candidate in 2019, and confirmed by the Department of Defense (DoD) in 2022. We use data from a nearby seismometer to localize the fireball to a ∼16km2 region within the ∼120km2 zone allowed by the precision of the DoD-provided coordinates. The improved localization is of great importance for a forthcoming expedition to retrieve the meteor fragments.

Funder

Breakthrough Prize Foundation

Galileo Project at Harvard University

Publisher

MDPI AG

Subject

General Medicine

Reference12 articles.

1. A Meteor of Apparent Interstellar Origin in the CNEOS Fireball Catalog;Siraj;Astrophys. J.,2022

2. New Constraints on the Composition and Initial Speed of CNEOS 2014-01-08;Siraj;Res. Notes Am. Astron. Soc.,2022

3. Siraj, A., Loeb, A., and Gallaudet, T. (2022). An Ocean Expedition by the Galileo Project to Retrieve Fragments of the First Large Interstellar Meteor CNEOS 2014-01-08. arXiv.

4. Tillinghast-Raby, A., Loeb, A., and Siraj, A. (2022). Expected Fragment Distribution from the First Interstellar Meteor CNEOS 2014-01-08. arXiv.

5. Matsuzaki, H., and Yamakoshi, K. (1993, January 16–20). Size Distribution of Interplanetary Iron and Stony Particles Related with Deep-Sea Spherules. Proceedings of the Lunar and Planetary Science Conference, 1993, Lunar and Planetary Science Conference, Houston, TX, USA.

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