(85990) 1999 JV6
(85990) 1999 JV6 (provisional designation 1999 JV6) is a sub-kilometer near-Earth asteroid and a potentially hazardous object of the Apollo group. It was discovered by astronomers of the LINEAR program at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico. 1999 JV6 is a contact binary object consisting of two distinct lobes, as seen in radar images from various observatories including Arecibo and Goldstone in January 2015.
Radar images of 1999 JV6 taken by the Goldstone Radar on 12 January 2015 | |
| Discovery | |
|---|---|
| Discovered by | LINEAR |
| Discovery site | Lincoln Lab's ETS |
| Discovery date | 13 May 1999 |
| Designations | |
MPC designation | 1999 JV6 |
Minor planet category | Apollo · NEO · PHA |
| Orbital characteristics | |
| Epoch 31 May 2020 (JD 2459000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 20.76 yr (7,582 days) |
| Aphelion | 1.3219 AU |
| Perihelion | 0.6946 AU |
Semi-major axis | 1.0082 AU |
| Eccentricity | 0.31110 |
Orbital period (sidereal) | 1.01 yr |
Mean anomaly | 194.713° |
Mean motion | 0° 58m 24.915s / day |
| Inclination | 5.359° |
Longitude of ascending node | 124.318° |
| 235.531° | |
| Earth MOID | 0.03152 AU |
| Physical characteristics | |
Mean diameter | 0.451±0.026 km |
Synodic rotation period | 6.538 h |
| 0.095±0.023 | |
| Xk (SMASS) | |
| 20.2 | |
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