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Tracking Near-Earth Asteroids: A Comprehensive Guide

WISE Revises Numbers of Asteroids Near Earth
Image: NASA/JPL
Quick answer · as of 17 Oct 2026

The Near-Earth Object Database provides live tracking of asteroid orbits, close approaches, and impact risks, offering crucial insights into space safety.

The Near-Earth Object Database by Orbital Radar offers a detailed, real-time view of the orbits and trajectories of asteroids that come close to Earth. This tool is essential for understanding potential asteroid impacts and their risks. By tracking 17 active close approaches, it provides invaluable data for scientists and the public alike.

Understanding Near-Earth Asteroids

Near-Earth asteroids (NEAs) are celestial bodies whose orbits bring them close to Earth's orbit. The database tracks these objects to assess potential threats. NEAs are classified based on their size, orbit, and proximity to Earth, with some designated as potentially hazardous asteroids (PHAs) if they meet specific criteria.

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How to Use the Near-Earth Object Database

The database is user-friendly, allowing you to search for specific asteroids by name or designation. It provides detailed information on each object's orbit, size, and velocity. For instance, you can explore the trajectory of Apophis, a well-known asteroid with a close approach expected in 2029.

The Science Behind the Data

Orbital Radar's database utilises data from telescopes and space missions to calculate the orbits of NEAs. This involves complex calculations of celestial mechanics, taking into account gravitational influences and other factors. The tool's accuracy is critical for predicting potential impacts and informing planetary defence strategies.

Key Takeaways

The Near-Earth Object Database is a crucial tool for monitoring asteroid threats. With 17 active close approaches currently tracked, it provides timely alerts and detailed information. This tool not only aids scientific research but also enhances public awareness of space safety issues.

Frequently Asked Questions

What is a near-earth asteroid tracker?
A near-earth asteroid tracker monitors the orbits of asteroids that come close to Earth, assessing their potential impact risks.
How does the Near-Earth Object Database work?
The database uses data from telescopes and space missions to calculate the orbits and trajectories of near-earth asteroids, providing real-time updates.
What information can I find in the Near-Earth Object Database?
The database offers details on asteroid orbits, sizes, velocities, and close approach dates, helping assess potential impact risks.
Why is tracking near-earth asteroids important?
Tracking these asteroids is crucial for predicting potential impacts and developing strategies for planetary defence.
How can I access the Near-Earth Object Database?
You can explore live asteroid data and potential hazards by visiting the Near-Earth Object Database on Orbital Radar.
📎 Cite this article
APA
Orbital Radar Newsroom. (2026). Tracking Near-Earth Asteroids: A Comprehensive Guide. Orbital Radar. https://orbitalradar.com/blog/near-earth-object-tracker-guide
MLA
"Tracking Near-Earth Asteroids: A Comprehensive Guide." Orbital Radar, 20 July 2026, https://orbitalradar.com/blog/near-earth-object-tracker-guide.
BibTeX
@misc{orbitalradar_near_earth_object_tracker_guide, title = {Tracking Near-Earth Asteroids: A Comprehensive Guide}, author = {{Orbital Radar}}, year = {2026}, howpublished = {\url{https://orbitalradar.com/blog/near-earth-object-tracker-guide}} }
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