(25884) Asai Inner Main-belt Asteroid
Discovered on 20 September 2000 by BATTeRS at Bisei SG Center.
Yoshihiko Asai (b. 1957) is a professor at Higashi Nippon International University, who contributed to the promotion of Japanese deep space missions, space education and the establishment of the Japan Spaceguard Association.Naming citation (MPC batch dated 2015-12-25), IAU / Minor Planet Center, via NASA/JPL
Where Asai is today
Seen from above the solar system on 2026-10-14: Asai is 2.02 au from the Sun and 3.01 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 25884 |
| Provisional designation | 2000 SQ4 |
| Orbit class | Inner Main-belt Asteroid |
| Diameter | 1.91 km (#17,129 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.697 |
| Rotation period | 4.92 hours |
| Absolute magnitude (H) | 14.76 |
| Orbital period | 2.73 years |
| Semi-major axis | 1.95 au |
| Perihelion – aphelion | 1.80 – 2.11 au |
| Eccentricity | 0.0803 |
| Inclination | 21.6° |
| Closest distance between its orbit and Earth's (MOID) | 0.892 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.