Near-Earth Asteroid Tracker

Live close approach data from NASA · Updated hourly

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Asteroid: 66146 (1998 TU3)

Notable 2026-Aug-26 16:35 UTC

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

Historical context

This object passes within 35.12 LD of Earth. Approaches this close (within 36 LD) are recorded several times per month across all tracked near-Earth objects.

Size comparison

Estimated diameter: 3569–7981m — the size of a large city district.

If it were to strike Earth (it won't), the estimated impact energy would be approximately 3,081,836 megatons of TNT.

Closest distance
35.12 LD
13.5 million km
Relative velocity
11.31 km/s
40,709 km/h
Diameter estimate
~5775m
3569–7981m range
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