2001 YB5
Near-Earth asteroid
From Wikipedia, the free encyclopedia
2001 YB5 is a sub-kilometer B-type near-Earth asteroid that belongs to the Apollo group. It is also a potentially hazardous asteroid. The asteroid measures approximately 300 meters in diameter. It has a Minimum Orbit Intersection Distance (MOID) from the Earth of 0.0038 AU (570,000 km; 350,000 mi). Based on limited observations, the asteroid may have a rotation period of 2.5 hours.[1][2]
| Designations | |
|---|---|
| Orbital characteristics[1] | |
| Epoch 21 November 2025 (JD 2461000.5) | |
| Uncertainty parameter 7 | |
| Aphelion | 4.36243 AU (652.610 Gm) |
| Perihelion | 0.318856 AU (47.7002 Gm) |
| 2.340642 AU (350.1551 Gm) | |
| Eccentricity | 0.863774 |
| 3.58 yr (1308 d) | |
| 226.183° | |
| 0° 16m 30.842s / day | |
| Inclination | 5.55131° |
| 108.212° | |
| 115.487° | |
| Earth MOID | 0.0029099 AU (435,310 km) |
| Jupiter MOID | 0.698308 AU (104.4654 Gm) |
| Physical characteristics | |
| 2.5 h (0.10 d) | |
| 20.74 | |
It passed at a nominal distance of 0.0043767 AU (654,750 km; 406,840 mi) from the Moon and 0.0055633 AU (832,260 km; 517,140 mi) from Earth on 7 January 2002.[1]
Discovery
The asteroid was small enough to only be discovered after a close flyby later than year on the 26th of December 2002 by NASA's Near-Earth Asteroid Tracking program (NEAT).[3][4][5]
The nearest proximity it has reached Earth by was 830,000 kilometres which is approximately twice the distance to the Moon.[5] The findings of David Morrison of the NASA Ames Research Center claim that although a object the size of 2001 YB5 in space commonly fly and orbit the Earth's proximity at such close distances annually, there are no indications of a collision on Earth as their predicted impact spans from about once every 20,000 to 30,000 years.[5]
