2021 RW99
Track asteroid 2021 RW99 on ObjectTracer's real-time 3D globe.
Track on 3D Globe →Close Approach Data
| Close Approach | 2026-Apr-19 13:49 UTC |
|---|---|
| Miss Distance | 46,436,340 km (120.749 Lunar Distances) |
| Velocity | 60,784 km/h (16.88 km/s) |
| Est. Diameter | 81.8–182.8 m |
| Hazardous | ✓ Not Hazardous |
| NASA ID | 54209293 |
What is 2021 RW99?
2021 RW99 is a near-Earth asteroid. It has an estimated diameter of 81.8–182.8 m. During its closest approach it will pass within 46,436,340 km of Earth — 120.749 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 2021 RW99 hit Earth?
No. 2021 RW99 passes Earth at a safe distance of about 46,436,340 km — 120.749 times the Earth–Moon distance. NASA does not classify it as hazardous.
How big is asteroid 2021 RW99?
2021 RW99 has an estimated diameter of 81.8–182.8 m, based on its brightness as measured by NASA.
When is 2021 RW99's closest approach to Earth?
2021 RW99 makes its close approach on 2026-Apr-19 13:49 UTC, travelling at about 60,784 km/h relative to Earth.
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