(17447) Heindl Inner Main-belt Asteroid
Discovered on 25 April 1990 by E. F. Helin at Palomar.
Clifford J. Heindl (b. 1926) has guided the Earth and Space Sciences Division of the Jet Propulsion Laboratory since 1978 as its deputy manager. His exceptional insight, outstanding administrative skills, expert knowledge, dedication to duty and personal integrity have earned him the highest respect at JPL.Naming citation (20010109/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Heindl is today
Seen from above the solar system on 2026-10-14: Heindl is 2.02 au from the Sun and 1.23 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 17447 |
| Provisional designation | 1990 HE |
| Orbit class | Inner Main-belt Asteroid |
| Rotation period | 2.57 hours |
| Absolute magnitude (H) | 14.65 |
| Orbital period | 2.70 years |
| Semi-major axis | 1.94 au |
| Perihelion – aphelion | 1.72 – 2.16 au |
| Eccentricity | 0.115 |
| Inclination | 24.8° |
| Closest distance between its orbit and Earth's (MOID) | 0.809 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Clifford
All asteroids named after someone called Clifford