Asteroid (2015 WZ12)
Closest pass on 2026-Oct-30 07:46 TDB (Julian Date: 2461343.823769862)
Key Facts
- On 2026-Oct-30 07:46, asteroid (2015 WZ12) passed Earth at a nominal distance of 10,300,000 km (26.7 lunar distances).
- At closest approach, the object was traveling at 10.3 km/s relative to Earth.
- The object has an estimated size of 19.5 m, which is about one and a half school buses.
- The miss distance was about 27 times the distance to the Moon.
- Hazard classification: 10 to 25 meters. Produces a powerful high-altitude shockwave capable of shattering windows, damaging roofs, and producing minor local injuries like the 2013 Chelyabinsk event.
Visual Scale Comparison
| Target | 20 m |
|---|---|
| Smaller | school bus: 12 m |
| Larger | tennis court: 23.8 m |
Object size compared to known reference benchmarks.
Miss Distance Orbital Dial
Concentric orbital rings showing Earth, Moon orbit, and asteroid trajectory.
Astrometric & Orbital Parameters
| Designation | 2015 WZ12 |
|---|---|
| Full Object Name | (2015 WZ12) |
| Nominal Miss Distance | 10,300,000 km (26.7 lunar distances / 0.0686291963530225 au) |
| 3-Sigma Minimum Distance | 9,562,453.415 km (24.876 LD) |
| Relative Velocity (v_rel) | 10.3388771369708 km/s (about 11 rifle bullets) |
| Velocity at Infinity (v_inf) | 10.3351212807335 km/s |
| Time Uncertainty (3-sigma) | 05:33 |
| Absolute Magnitude (H) | 26.3 mag |
| Orbit Solution ID | 13 (NASA JPL Small-Body Database) |
| Inside Moon Orbit | No |
| Inside Geostationary Ring | No |
Cite this page
Permanent URL: https://whatnearlyhitus.com/approaches/2026-Oct-30/2015-wz12/ | Machine-readable twin: index.json
APA:
What Nearly Hit Us Project. (2026). Asteroid (2015 WZ12) Close Approach on 2026-Oct-30 07:46. What Nearly Hit Us. Retrieved from https://whatnearlyhitus.com/approaches/2026-Oct-30/2015-wz12/MLA:
"Asteroid (2015 WZ12) Close Approach on 2026-Oct-30 07:46." What Nearly Hit Us, What Nearly Hit Us Project, 2026-09-24, https://whatnearlyhitus.com/approaches/2026-Oct-30/2015-wz12/.BibTeX:
@misc{approach_2015WZ12_202630,
title = {Asteroid (2015 WZ12) Close Approach on 2026-Oct-30 07:46},
author = {{What Nearly Hit Us Project}},
year = {2026},
url = {https://whatnearlyhitus.com/approaches/2026-Oct-30/2015-wz12/},
note = {Primary upstream source: NASA/JPL CNEOS CAD API}
}