|
Discovery and designation
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Discovered by | Perth Observatory | |||||||||
| Discovery date | November 16, 1981 | |||||||||
|
Designations
|
||||||||||
| MPC designation | (9928) 1981 WE9 | |||||||||
| Alternate name(s) | 1971 TJ1, 1993 FC43 | |||||||||
| Minor planet category |
Main Belt asteroid | |||||||||
| Epoch October 27, 2007 | ||||||||||
| Ap | 2.6091584 AU | |||||||||
| Peri | 1.8256226 AU | |||||||||
| Semi-major axis | 2.2173905 AU | |||||||||
| Eccentricity | 0.1766797 | |||||||||
| Orbital period | 1206.0400092 d | |||||||||
| Mean anomaly | 346.22065° | |||||||||
| Inclination | 2.84296° | |||||||||
| Longitude of ascending node | 179.49922° | |||||||||
| Argument of peri | 175.65482° | |||||||||
| Dimensions | ~12.9 km[1] | |||||||||
| Sidereal rotation period |
5.547 h[2] | |||||||||
| Geometric albedo | ~0.01 | |||||||||
| Surface temp. Kelvin Celsius |
|
|||||||||
| Absolute magnitude (H) | 14.4 | |||||||||
(9928) 1981 WE9 is a main belt asteroid. It orbits the Sun once every 3.30 years.[3] It is associated with the Flora family of asteroids.[4]
Discovered on November 16, 1981 by the Perth Observatory in Bickley, it was given the provisional designation "1981 WE9".[5]
|
|||||
|
||||||||||||||||||||||