Asteroid (2023 TC2)
Closest pass on 2026-Oct-03 07:13 TDB (Julian Date: 2461316.800422845)
Key Facts
- On 2026-Oct-03 07:13, asteroid (2023 TC2) passed Earth at a nominal distance of 11,500,000 km (29.9 lunar distances).
- At closest approach, the object was traveling at 9.7 km/s relative to Earth.
- The object has an estimated size of 42.9 m, which is about 4 school buses.
- The miss distance was 0.211 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 | 43 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 | 2023 TC2 |
|---|---|
| Full Object Name | (2023 TC2) |
| Nominal Miss Distance | 11,500,000 km (29.9 lunar distances / 0.0768671716063296 au) |
| 3-Sigma Minimum Distance | 8,504,671.489 km (22.125 LD) |
| Relative Velocity (v_rel) | 9.69632230536449 km/s (just under 11 rifle bullets) |
| Velocity at Infinity (v_inf) | 9.69274674187385 km/s |
| Time Uncertainty (3-sigma) | 5_21:09 |
| Absolute Magnitude (H) | 24.59 mag |
| Orbit Solution ID | 6 (NASA JPL Small-Body Database) |
| Inside Moon Orbit | No |
| Inside Geostationary Ring | No |
Cite this page
Permanent URL: https://whatnearlyhitus.com/approaches/2026-Oct-03/2023-tc2/ | Machine-readable twin: index.json
APA:
What Nearly Hit Us Project. (2026). Asteroid (2023 TC2) Close Approach on 2026-Oct-03 07:13. What Nearly Hit Us. Retrieved from https://whatnearlyhitus.com/approaches/2026-Oct-03/2023-tc2/MLA:
"Asteroid (2023 TC2) Close Approach on 2026-Oct-03 07:13." What Nearly Hit Us, What Nearly Hit Us Project, 2026-09-24, https://whatnearlyhitus.com/approaches/2026-Oct-03/2023-tc2/.BibTeX:
@misc{approach_2023TC2_202603,
title = {Asteroid (2023 TC2) Close Approach on 2026-Oct-03 07:13},
author = {{What Nearly Hit Us Project}},
year = {2026},
url = {https://whatnearlyhitus.com/approaches/2026-Oct-03/2023-tc2/},
note = {Primary upstream source: NASA/JPL CNEOS CAD API}
}