Near-Earth Asteroid Tracker

Live close approach data from NASA · Updated hourly

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Asteroid: (2021 JE4)

Notable 2026-Oct-11 17:07 UTC

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

Historical context

This object passes within 174.04 LD of Earth. Approaches this close (within 175 LD) are recorded several times per month across all tracked near-Earth objects.

Size comparison

Estimated diameter: 237–530m — about the height of the Eiffel Tower (330m).

If it were to strike Earth (it won't), the estimated impact energy would be approximately 1,970 megatons of TNT.

Closest distance
174.04 LD
66.9 million km
Relative velocity
16.72 km/s
60,196 km/h
Diameter estimate
~383m
237–530m range
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