(20419) Josephlazio Main-belt Asteroid
Discovered on 26 September 1998 by LINEAR at Socorro.
T. Joseph W. Lazio (b. 1967) is an American radio astronomer at NASA’s Jet Propulsion Laboratory and Chief Scientist for the Interplanetary Network Directorate. He provides leadership and advocacy for planetary radar activities at Goldstone and he helped establish the Southern Hemisphere Asteroid Radar Program at Canberra.Naming citation (WGSBN Bull. 6, #11, 19), IAU / Minor Planet Center, via NASA/JPL
Where Josephlazio is today
Seen from above the solar system on 2026-10-14: Josephlazio is 2.41 au from the Sun and 3.16 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20419 |
| Provisional designation | 1998 SE117 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.52 km (#11,587 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.286 |
| Rotation period | 5.50 hours |
| Absolute magnitude (H) | 13.84 |
| Orbital period | 3.71 years |
| Semi-major axis | 2.40 au |
| Perihelion – aphelion | 2.01 – 2.78 au |
| Eccentricity | 0.160 |
| Inclination | 7.05° |
| Closest distance between its orbit and Earth's (MOID) | 1.04 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Joseph
- (2157) Ashbrook
- (4225) Hobart
- (5034) Joeharrington
- (5577) Priestley
- (5883) Josephblack
- (6540) Stepling
- (6743) Liu
- (7656) Joemontani
- (8023) Josephwalker
- (8255) Masiero
- (8661) Ratzinger
- (8794) Joepatterson
All asteroids named after someone called Joseph
Also discovered on 26 September 1998
- (10237) Adzic
- (10238) Ananyakarthik
- (11380) Amolsingh
- (11382) Juliasitu
- (12915) Rinoliver
- (13336) Jillpernell
- (13337) Sampath
- (13339) Williamsmith
- (13341) Kellysweeney
- (13343) Annietaylor
- (13344) Upenieks
- (13346) Danielmiller