(279410) McCallon Main-belt Asteroid
Discovered on 1 March 2010 by WISE at WISE.
Howard McCallon (b. 1945) is an American engineer specializing in determining astrometric solutions for astronomical instruments, including the Infrared Astronomical Satellite, the Two Micron All-Sky Survey, the Wide-field Infrared Survey Explorer and the Spitzer Space Telescope.Naming citation (MPC batch dated 2014-10-08), IAU / Minor Planet Center, via NASA/JPL
Where McCallon is today
Seen from above the solar system on 2026-10-14: McCallon is 2.21 au from the Sun and 2.65 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 279410 |
| Provisional designation | 2010 EF144 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.50 km (#16,255 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0780 |
| Absolute magnitude (H) | 16.81 |
| Orbital period | 3.74 years |
| Semi-major axis | 2.41 au |
| Perihelion – aphelion | 2.15 – 2.67 au |
| Eccentricity | 0.109 |
| Inclination | 15.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.14 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Howard
- (14619) Plotkin
- (15396) Howardmoore
- (28210) Howardfeng
- (61913) Lanning
- (152233) Van Till
- (217492) Howardtaylor
All asteroids named after someone called Howard