(5515) Naderi Main-belt Asteroid
Discovered on 5 March 1989 by E. F. Helin at Palomar.
Firouz Naderi (b. 1946) is a scientist, engineer and manager who has led major programs at the Jet Propulsion Laboratory, including the Mars Exploration Program during the successful development and landings of the Spirit and Opportunity rovers. He was awarded NASA's highest honor, the Distinguished Service Medal, in 2004.Naming citation (MPC batch dated 2016-02-22), IAU / Minor Planet Center, via NASA/JPL
Where Naderi is today
Seen from above the solar system on 2026-10-14: Naderi is 3.22 au from the Sun and 2.47 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5515 |
| Provisional designation | 1989 EL1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.00 km (#7,644 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.273 |
| Rotation period | 5.23 hours |
| Absolute magnitude (H) | 13.1 |
| Orbital period | 4.35 years |
| Semi-major axis | 2.67 au |
| Perihelion – aphelion | 2.07 – 3.26 au |
| Eccentricity | 0.225 |
| Inclination | 13.1° |
| Closest distance between its orbit and Earth's (MOID) | 1.08 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 5 March 1989
- (4104) Alu
- (4105) Tsia
- (4639) Minox
- (5327) Gertwilkens
- (5583) Braunerova
- (5617) Emelyanenko
- (6126) Hubelmatt
- (6385) Martindavid
- (6856) Bethemmons