(20562) Oldag Main-belt Asteroid
Discovered on 9 September 1999 by LINEAR at Socorro.
Drew Oldag (b. 1983) is an American research software engineer with the LSST Interdisciplinary Network for Collaboration and Computing at the University of Washington. He develops machine-learning infrastructure and methods for analyzing large astronomical datasets, including analytic approaches to parallax correction for small-body discovery.Naming citation (WGSBN Bull. 6, #11, 27), IAU / Minor Planet Center, via NASA/JPL
Where Oldag is today
Seen from above the solar system on 2026-10-14: Oldag is 2.57 au from the Sun and 2.47 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20562 |
| Provisional designation | 1999 RV120 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.85 km (#6,725 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.125 |
| Rotation period | 135 hours |
| Absolute magnitude (H) | 13.75 |
| Orbital period | 3.73 years |
| Semi-major axis | 2.40 au |
| Perihelion – aphelion | 1.92 – 2.89 au |
| Eccentricity | 0.203 |
| Inclination | 13.5° |
| Closest distance between its orbit and Earth's (MOID) | 0.911 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called Drew
Also discovered on 9 September 1999
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