Near-Earth Asteroid Tracker

Live close approach data from NASA · Updated hourly

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Asteroid: (2018 GT3)

Notable 2026-Oct-21 07:49 UTC

Notable approach — Unusually close or large, but poses no risk.

Historical context

This object passes within 155.23 LD of Earth. Approaches this close (within 156 LD) are recorded several times per month across all tracked near-Earth objects.

Size comparison

Estimated diameter: 98–220m — about the size of a city block.

If it were to strike Earth (it won't), the estimated impact energy would be approximately 177 megatons of TNT.

Closest distance
155.23 LD
59.7 million km
Relative velocity
18.73 km/s
67,443 km/h
Diameter estimate
~159m
98–220m range
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