Near-Earth Asteroid Tracker

Live close approach data from NASA · Updated hourly

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Asteroid: (2019 YO4)

Notable 2026-Jun-29 03:45 UTC

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

Historical context

This object passes within 93.47 LD of Earth. Approaches this close (within 94 LD) are recorded several times per month across all tracked near-Earth objects.

Size comparison

Estimated diameter: 111–249m — about the size of a city block.

If it were to strike Earth (it won't), the estimated impact energy would be approximately 348 megatons of TNT.

Closest distance
93.47 LD
35.9 million km
Relative velocity
21.81 km/s
78,533 km/h
Diameter estimate
~180m
111–249m range
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