Object Tracer

2001 WJ4

Track asteroid 2001 WJ4 on ObjectTracer's real-time 3D globe.

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Close Approach Data

Close Approach2026-Apr-12 09:08 UTC
Miss Distance61,184,500 km (159.098 Lunar Distances)
Velocity25,411 km/h (7.06 km/s)
Est. Diameter8.8–19.7 m
Hazardous✓ Not Hazardous
NASA ID3092506

What is 2001 WJ4?

2001 WJ4 is a near-Earth asteroid. It has an estimated diameter of 8.8–19.7 m. During its closest approach it will pass within 61,184,500 km of Earth — 159.098 times the distance from Earth to the Moon. ObjectTracer visualises this asteroid in real-time on an interactive 3D globe using NASA NeoWs data.

Track all near-Earth asteroids including PHAs, NEOs, and close approach objects on ObjectTracer's Asteroid Tracker.

What is a Near-Earth Object?

A Near-Earth Object (NEO) is an asteroid or comet whose orbit brings it close to Earth's. NASA tracks thousands of them via the NeoWs program, measuring miss distance in lunar distances (LD) — one LD is the average Earth–Moon distance, about 384,400 km.

Frequently asked questions

Will asteroid 2001 WJ4 hit Earth?

No. 2001 WJ4 passes Earth at a safe distance of about 61,184,500 km — 159.098 times the Earth–Moon distance. NASA does not classify it as hazardous.

How big is asteroid 2001 WJ4?

2001 WJ4 has an estimated diameter of 8.8–19.7 m, based on its brightness as measured by NASA.

When is 2001 WJ4's closest approach to Earth?

2001 WJ4 makes its close approach on 2026-Apr-12 09:08 UTC, travelling at about 25,411 km/h relative to Earth.

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