145523 Lulin
145523 Lulin, provisional designation 2006 EM67, is a background asteroid from the central region of the asteroid belt, approximately 3.9 kilometers (2.4 miles) in diameter. It was discovered on 7 March 2006, by Taiwanese astronomers Hung-Chin Lin (林宏欽) and Ye Quanzhi (葉泉志) at Lulin Observatory in central Taiwan. It was named for the Lulin mountain and the observatory site.
| Discovery | |
|---|---|
| Discovered by | H.-C. Lin Q.-Z. Ye |
| Discovery site | Lulin Obs. |
| Discovery date | 7 March 2006 |
| Designations | |
MPC designation | (145523) Lulin |
Named after | Lulin Mountains (observatory site) |
Alternative designations | 2006 EM67 |
Minor planet category | main-belt · (middle) background |
| Orbital characteristics | |
| Epoch 27 April 2019 (JD 2458600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 25.72 yr (9,396 d) |
| Aphelion | 3.2484 AU |
| Perihelion | 2.2468 AU |
Semi-major axis | 2.7476 AU |
| Eccentricity | 0.1823 |
Orbital period (sidereal) | 4.55 yr (1,664 d) |
Mean anomaly | 273.09° |
Mean motion | 0° 12m 59.04s / day |
| Inclination | 10.867° |
Longitude of ascending node | 345.22° |
| 273.12° | |
| Physical characteristics | |
Mean diameter | 3.913±0.301 km |
| 0.073±0.021 | |
| 15.5 | |
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