| Minorplanet: | yes |
| Background: |
|
| 2002 MN | |
| Discovery Ref: | [1] |
| Discoverer: | MIT Lincoln Laboratory |
| Discovered: | 17 June 2002 |
| Observation Arc: | 22.04 yr |
| Epoch: | 17 October 2024 (JD 2460600.5) |
| Semimajor: | 1.8162AU |
| Perihelion: | 0.90867AU |
| Aphelion: | 2.7238abbr=onNaNabbr=on |
| Eccentricity: | 0.49969 |
| Period: | 2.4477 yr (894.03 d) |
| Inclination: | 1.0472° |
| Asc Node: | 85.287° |
| Mean Anomaly: | 62.941° |
| Arg Peri: | 131.622° |
| Dimensions: | ~73m (240feet) (assumed) |
| Abs Magnitude: | 23.6 |
| Mean Motion: | 0.40267° / day |
| Uncertainty: | 0 |
| Moid: | 0.000488451AU |
| Jupiter Moid: | 2.24448AU |
2002 MN is the provisional designation given to a 73-meter Apollo near-Earth asteroid that on 14 June 2002 passed Earth at a distance of 0.0008abbr=onNaNabbr=on, about one third the distance to the Moon (0.3 LD). The close approach was second only to the Earth approach by the 10-meter asteroid 1994 XM1. 2002 MN was discovered on 17 June 2002, three days after closest approach. Its mass and relative velocity were in the same general range as the object ascribed to the Tunguska event of 1908, which leveled over 800order=flipNaNorder=flip of trees in Siberia.
2002 MN was estimated to have a 1 in 360,000 chance of Earth impact sometime after 2070, but further observations in July 2024 ruled this out, and the object was removed from the risk list.