Asteroid (2026 SX2)
Closest pass on 2026-Sep-28 18:03 TDB (Julian Date: 2461312.252254617)
Key Facts
- On 2026-Sep-28 18:03, asteroid (2026 SX2) passed Earth at a nominal distance of 1,580,000 km (4.1 lunar distances).
- At closest approach, the object was traveling at 7.69 km/s relative to Earth.
- The object has an estimated size of 12.7 m, which is about the size of a school bus.
- The miss distance was just over 4 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 | 13 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 | 2026 SX2 |
|---|---|
| Full Object Name | (2026 SX2) |
| Nominal Miss Distance | 1,580,000 km (4.1 lunar distances / 0.0105342094505028 au) |
| 3-Sigma Minimum Distance | 1,568,119.533 km (4.079 LD) |
| Relative Velocity (v_rel) | 7.69122795779703 km/s (about the speed of a ISS orbital velocity) |
| Velocity at Infinity (v_inf) | 7.65827106967663 km/s |
| Time Uncertainty (3-sigma) | 00:29 |
| Absolute Magnitude (H) | 27.24 mag |
| Orbit Solution ID | 1 (NASA JPL Small-Body Database) |
| Inside Moon Orbit | No |
| Inside Geostationary Ring | No |
Cite this page
Permanent URL: https://whatnearlyhitus.com/approaches/2026-Sep-28/2026-sx2/ | Machine-readable twin: index.json
APA:
What Nearly Hit Us Project. (2026). Asteroid (2026 SX2) Close Approach on 2026-Sep-28 18:03. What Nearly Hit Us. Retrieved from https://whatnearlyhitus.com/approaches/2026-Sep-28/2026-sx2/MLA:
"Asteroid (2026 SX2) Close Approach on 2026-Sep-28 18:03." What Nearly Hit Us, What Nearly Hit Us Project, 2026-09-24, https://whatnearlyhitus.com/approaches/2026-Sep-28/2026-sx2/.BibTeX:
@misc{approach_2026SX2_202628,
title = {Asteroid (2026 SX2) Close Approach on 2026-Sep-28 18:03},
author = {{What Nearly Hit Us Project}},
year = {2026},
url = {https://whatnearlyhitus.com/approaches/2026-Sep-28/2026-sx2/},
note = {Primary upstream source: NASA/JPL CNEOS CAD API}
}