Asteroid (2024 SB5)
Closest pass on 2026-Sep-26 05:11 TDB (Julian Date: 2461309.716017945)
Key Facts
- On 2026-Sep-26 05:11, asteroid (2024 SB5) passed Earth at a nominal distance of 11,200,000 km (29.2 lunar distances).
- At closest approach, the object was traveling at 13.8 km/s relative to Earth.
- The object has an estimated size of 25.5 m, which is about 2 school buses.
- The miss distance was 0.205 times the Mars closest approach.
- Hazard classification: 25 to 50 meters. Can produce a low-altitude airburst or surface crater capable of flattening forests over hundreds of square kilometers and devastating a metropolitan area, comparable to the 1908 Tunguska event.
Visual Scale Comparison
| Target | 25 m |
|---|---|
| Smaller | blue whale: 25 m |
| Larger | Boeing 747: 70.6 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 | 2024 SB5 |
|---|---|
| Full Object Name | (2024 SB5) |
| Nominal Miss Distance | 11,200,000 km (29.2 lunar distances / 0.0749267541567867 au) |
| 3-Sigma Minimum Distance | 2,582,242.15 km (6.718 LD) |
| Relative Velocity (v_rel) | 13.8324701443505 km/s (about one and a half ISS orbital speeds) |
| Velocity at Infinity (v_inf) | 13.8298990615701 km/s |
| Time Uncertainty (3-sigma) | 5_16:46 |
| Absolute Magnitude (H) | 25.72 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-26/2024-sb5/ | Machine-readable twin: index.json
APA:
What Nearly Hit Us Project. (2026). Asteroid (2024 SB5) Close Approach on 2026-Sep-26 05:11. What Nearly Hit Us. Retrieved from https://whatnearlyhitus.com/approaches/2026-Sep-26/2024-sb5/MLA:
"Asteroid (2024 SB5) Close Approach on 2026-Sep-26 05:11." What Nearly Hit Us, What Nearly Hit Us Project, 2026-09-24, https://whatnearlyhitus.com/approaches/2026-Sep-26/2024-sb5/.BibTeX:
@misc{approach_2024SB5_202626,
title = {Asteroid (2024 SB5) Close Approach on 2026-Sep-26 05:11},
author = {{What Nearly Hit Us Project}},
year = {2026},
url = {https://whatnearlyhitus.com/approaches/2026-Sep-26/2024-sb5/},
note = {Primary upstream source: NASA/JPL CNEOS CAD API}
}