Observational Research of Near Earth Asteroid 2024 XA1

ZHANG Xiliang; XU Wentao; FAN Xiangyu; WANG Ling

doi:10.3724/j.issn.2096-9287.2026.20250055

Journal of Deep Space Exploration ›› 2026, Vol. 13 ›› Issue (3) :235 -241. DOI: 10.3724/j.issn.2096-9287.2026.20250055

Special Issue: Near-Earth Asteroid Defense Science and Engineering Technology

Observational Research of Near Earth Asteroid 2024 XA1

ZHANG Xiliang^1,2, XU Wentao³, FAN Xiangyu^1,2, WANG Ling^1,2

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Abstract

This study adopted image processing methods for trailed target and Gaia DR2 catalog data to determine position and brightness of near-Earth asteroid 2024 XA1. Combined with the data from Minor Planet Center（MPC），orbital calculations revealed that near-Earth asteroid 2024 XA1 impacted at 16:14:48 UT on December 3，2024，at coordinates 60.85°N，118.49°E. The absolute magnitude of near-Earth asteroid 2024 XA1 was 32.98～33.14 corresponding to a diameter of 0.76～0.82 meters with an albedo of 0.15. As a targeted observation experiment for hazardous asteroids，the methodology and data processing techniques developed in this study can be applied to planetary warning and defense missions in future.

Keywords

near earth asteroid / observation / orbit calculation / absolute magnitude / diameter

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ZHANG Xiliang, XU Wentao, FAN Xiangyu, WANG Ling. Observational Research of Near Earth Asteroid 2024 XA1. Journal of Deep Space Exploration, 2026, 13 (3) : 235-241 DOI:10.3724/j.issn.2096-9287.2026.20250055