5430 Luu
| Discovery | |
|---|---|
| Discovered by |
C. Shoemaker E. M. Shoemaker |
| Discovery site | Palomar Obs. |
| Discovery date | 12 May 1988 |
| Designations | |
| MPC designation | 5430 Luu |
|
Named after
|
Jane Luu (astronomer) |
| 1988 JA1 · 1970 OL | |
| main-belt · Phocaea | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 45.68 yr (16,685 days) |
| Aphelion | 2.8938 AU |
| Perihelion | 1.8356 AU |
| 2.3647 AU | |
| Eccentricity | 0.2238 |
| 3.64 yr (1,328 days) | |
| 325.86° | |
| 0° 16m 15.6s / day | |
| Inclination | 23.893° |
| 123.00° | |
| 122.10° | |
| Physical characteristics | |
| Dimensions |
6.508±0.029 km 6.659±0.043 7.63 km (calculated) 8.05±0.22 km 8.27±0.25 km |
|
4.44±0.05 h 13.55±0.02 h |
|
|
0.212±0.012 0.215±0.036 0.23 (assumed) 0.3826±0.0839 |
|
| S | |
| 12.6 · 12.70 · 12.8 · 13.45±0.87 | |
5430 Luu, provisional designation 1988 JA1, is a stony Phocaea asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 12 May 1988, by American astronomer couple Carolyn and Eugene Shoemaker at Palomar Observatory, California.
The S-type asteroid is a member of the Phocaea family. It orbits the Sun at a distance of 1.8–2.9 AU once every 3 years and 8 months (1,328 days). Its orbit has an eccentricity of 0.22 and an inclination of 24° with respect to the ecliptic. The first precovery was taken at Crimea–Nauchnij in 1970, extending the asteroid's observation arc by 18 years prior to its discovery.
In April 2006, photometric observations of this asteroid collected by American astronomer Brian D. Warner at his Palmer Divide Station, Colorado, show a rotation period of 13.55±0.02 hours with a brightness variation of 0.06±0.02 magnitude (U=2). A second, tentative light-curve was obtained by French astronomer René Roy in July 2007. It gave a period of 4.44±0.05 hours and an amplitude of 0.05 in magnitude (U=2-).
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