(216261) Mapihsia Main-belt Asteroid
Discovered on 16 November 2006 by Chang, M.-T., Ye, Q.-z. at Lulin.
Pi Hsia Ma (b. 1951), the mother of the first discoverer, inspires him in his astronomical work.Naming citation (20090806/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Mapihsia is today
Seen from above the solar system on 2026-10-14: Mapihsia is 2.28 au from the Sun and 1.30 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 216261 |
| Provisional designation | 2006 WJ15 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.45 km (#11,740 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0510 |
| Rotation period | 2.02 hours |
| Absolute magnitude (H) | 15.85 |
| Orbital period | 5.12 years |
| Semi-major axis | 2.97 au |
| Perihelion – aphelion | 2.28 – 3.66 au |
| Eccentricity | 0.233 |
| Inclination | 6.30° |
| Closest distance between its orbit and Earth's (MOID) | 1.28 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.