(15631) Dellorusso Main-belt Asteroid
Discovered on 24 April 2000 by LONEOS at Anderson Mesa.
Neil Dello Russo (b. 1966) has advanced the understanding of molecular processing and chemistry in comets, in particular of ethane and water, through his studies at the Catholic University of America and Goddard Space Flight Center.Naming citation (20030318/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Dellorusso is today
Seen from above the solar system on 2026-10-14: Dellorusso is 3.21 au from the Sun and 3.94 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 15631 |
| Provisional designation | 2000 HT57 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.34 km (#5,525 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.222 |
| Absolute magnitude (H) | 12.84 |
| Orbital period | 5.21 years |
| Semi-major axis | 3.00 au |
| Perihelion – aphelion | 2.77 – 3.23 au |
| Eccentricity | 0.0766 |
| Inclination | 10.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.81 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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