(21651) Mission Valley Main-belt Asteroid
Discovered on 19 July 1999 by G. Bell at Eskridge.
Mission Valley High School provides the land where Farpoint Observatory is sited. Situated at a dark site near Mission Creek, the high school has provided significant support to the research efforts of the North East Kansas Amateur Astronomer's League.Naming citation (20010509/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Mission Valley is today
Seen from above the solar system on 2026-10-14: Mission Valley is 2.90 au from the Sun and 3.85 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21651 |
| Provisional designation | 1999 OF1 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.74 |
| Orbital period | 4.80 years |
| Semi-major axis | 2.84 au |
| Perihelion – aphelion | 2.77 – 2.92 au |
| Eccentricity | 0.0269 |
| Inclination | 13.8° |
| Closest distance between its orbit and Earth's (MOID) | 1.75 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.