(12991) Davidgriffiths Main-belt Asteroid
Discovered on 2 March 1981 by S. J. Bus at Siding Spring.
David J. Griffiths (b. 1961) contributed to NASA's Lucy Trojan asteroid mission as the Flight Project Mechanical Systems and Solar Arrays Systems Engineer.Naming citation (WGSBN Bull. 1, #9, 13), IAU / Minor Planet Center, via NASA/JPL
Where Davidgriffiths is today
Seen from above the solar system on 2026-10-14: Davidgriffiths is 2.87 au from the Sun and 3.60 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12991 |
| Provisional designation | 1981 EN21 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.73 km (#13,375 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.349 |
| Rotation period | 3.44 hours |
| Absolute magnitude (H) | 14.24 |
| Orbital period | 4.95 years |
| Semi-major axis | 2.91 au |
| Perihelion – aphelion | 2.87 – 2.94 au |
| Eccentricity | 0.0125 |
| Inclination | 1.81° |
| Closest distance between its orbit and Earth's (MOID) | 1.86 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called David
- (2410) Morrison
- (4262) DeVorkin
- (4536) Drewpinsky
- (5270) Kakabadze
- (5332) Davidaguilar
- (5826) Bradstreet
- (5845) Davidbrewster
- (5920) Davidbell
- (5965) Meisel
- (6033) Southwood
- (6111) Davemckay
- (6435) Daveross
All asteroids named after someone called David
Also discovered on 2 March 1981
- (2884) Reddish
- (2919) Dali
- (2980) Cameron
- (2981) Chagall
- (2990) Trimberger
- (3000) Leonardo
- (3121) Tamines
- (3122) Florence
- (3207) Spinrad
- (3252) Johnny
- (3304) Pearce
- (3524) Schulz