(5181) SURF Main-belt Asteroid
Discovered on 7 April 1989 by E. F. Helin at Palomar.
Where SURF is today
Seen from above the solar system on 2026-10-14: SURF is 2.16 au from the Sun and 3.10 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5181 |
| Provisional designation | 1989 GO |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.25 km (#8,584 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.237 |
| Rotation period | 6.11 hours |
| Absolute magnitude (H) | 13.52 |
| Orbital period | 3.74 years |
| Semi-major axis | 2.41 au |
| Perihelion – aphelion | 2.08 – 2.74 au |
| Eccentricity | 0.136 |
| Inclination | 3.15° |
| Closest distance between its orbit and Earth's (MOID) | 1.09 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 7 April 1989
More named asteroids discovered by E. F. Helin
- (1982) Cline
- (2048) Dwornik
- (2050) Francis
- (2062) Aten
- (2074) Shoemaker
- (2083) Smither
- (2099) Opik
- (2100) Ra-Shalom
- (2128) Wetherill
- (2143) Jimarnold
- (2220) Hicks
- (2335) James
← (5180) Ohno · (5182) Bray →