(91870) Malcolmjozoff Main-belt Asteroid
Discovered on 29 October 1999 by LONEOS at Anderson Mesa.
Malcolm Jozoff (b. 1939) is a retired American corporate marketing executive. Mal volunteers for nonprofit organizations, including Lowell Observatory. He is a dark-sky advocate who shares his appreciation for the dark skies of Northern Arizona by inviting friends for telescope viewing at Lowell.Naming citation (WGSBN Bull. 3, #10, 5), IAU / Minor Planet Center, via NASA/JPL
Where Malcolmjozoff is today
Seen from above the solar system on 2026-10-14: Malcolmjozoff is 2.92 au from the Sun and 3.89 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 91870 |
| Provisional designation | 1999 UA39 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.11 km (#10,414 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0890 |
| Absolute magnitude (H) | 14.51 |
| Orbital period | 4.80 years |
| Semi-major axis | 2.84 au |
| Perihelion – aphelion | 2.44 – 3.25 au |
| Eccentricity | 0.143 |
| Inclination | 9.36° |
| Closest distance between its orbit and Earth's (MOID) | 1.43 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Malcolm
All asteroids named after someone called Malcolm
Also discovered on 29 October 1999
- (13410) Arhale
- (13412) Guerrieri
- (13413) Bobpeterson
- (13414) Grantham
- (13415) Stevenbland
- (14674) INAOE
- (15513) Emmermann
- (21873) Jindrichuvhradec
- (21888) Durech
- (22961) Rosegarcia
- (24090) Grindavik
- (24093) Tomoyamaguchi