(23788) Cofer Main-belt Asteroid
Discovered on 17 August 1998 by LINEAR at Socorro.
Evan Mitchell Cofer (b. 1994) is a finalist in the 2007 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his engineering project. He attends the Keystone Junior High School, San Antonio, Texas.Naming citation (20071026/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Cofer is today
Seen from above the solar system on 2026-10-14: Cofer is 2.23 au from the Sun and 1.26 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 23788 |
| Provisional designation | 1998 QT18 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.64 km (#13,604 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.278 |
| Absolute magnitude (H) | 14.51 |
| Orbital period | 3.46 years |
| Semi-major axis | 2.29 au |
| Perihelion – aphelion | 1.95 – 2.63 au |
| Eccentricity | 0.149 |
| Inclination | 2.85° |
| Closest distance between its orbit and Earth's (MOID) | 0.931 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Evan
- (17697) Evanchen
- (20873) Evanfrank
- (21568) Evanmorikawa
- (22527) Gawlik
- (24118) Babazadeh
- (24140) Evanmirts
- (25722) Evanmarshall
- (26682) Evanfletcher
- (27239) O'Dorney
- (28168) Evanolin
- (29663) Evanmackay
- (34205) Mizerak
All asteroids named after someone called Evan
Also discovered on 17 August 1998
- (9474) Cassadrury
- (9476) Vincenthuang
- (9477) Kefennell
- (10635) Chiragkumar
- (11189) Rabeaton
- (11369) Brazelton
- (11370) Nabrown
- (11371) Camley
- (11372) Aditisingh
- (11373) Carbonaro
- (11737) Gregneat
- (12545) Taniamurphy