(20804) Etter Main-belt Asteroid
Discovered on 25 September 2000 by LINEAR at Socorro.
Dolores M. Etter is renowned for lifetime achievement in digital signal processing and contributions to science education.Naming citation (20010804/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Etter is today
Seen from above the solar system on 2026-10-14: Etter is 1.99 au from the Sun and 1.55 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20804 |
| Provisional designation | 2000 SW209 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.54 km (#7,069 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0650 |
| Absolute magnitude (H) | 14.47 |
| Orbital period | 3.76 years |
| Semi-major axis | 2.42 au |
| Perihelion – aphelion | 1.99 – 2.85 au |
| Eccentricity | 0.178 |
| Inclination | 10.9° |
| Closest distance between its orbit and Earth's (MOID) | 0.977 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Dolores
All asteroids named after someone called Dolores