| Minorplanet: | yes |
| Background: |
|
| Discovered: | 10 March 2016 |
| Epoch: | 4 September 2017 (JD 2458000.5) |
| Uncertainty: | 3 |
| Observation Arc: | 1.42 yr (518 days) |
| Perihelion: | 0.9561 AU |
| Semimajor: | 1.8480 AU |
| Eccentricity: | 0.4826 |
| Period: | 2.51 yr (918 days) |
| Mean Motion: | / day |
| Inclination: | 2.5966° |
| Asc Node: | 359.44° |
| Arg Peri: | 23.527° |
| Moid: | 0.0065 AU (2.5 LD) |
| Dimensions: | 0.4 km |
| Abs Magnitude: | 19.2 |
is an asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 400 meters in diameter. It was first observed on 10 March 2016, by the Pan-STARRS survey at Haleakala Observatory, Hawaii, United States.
orbits the Sun at a distance of 1.0–2.7 AU once every 2 years and 6 months (918 days). Its orbit has an eccentricity of 0.48 and an inclination of 3° with respect to the ecliptic. It has an Earth minimum orbital intersection distance of 0.0065abbr=onNaNabbr=on which translates into 2.5 lunar distances.
It is currently rated at level 0[1] after being rated at level 1 on the Torino Scale by the NEODyS system.[2] It was upgraded to level 1 on 25 March 2016 but downgraded on 30 March 2016. On the Sentry system it did not cross the threshold between the two levels, due to a lower computed impact probability. The asteroid is estimated to have a diameter of 440m (1,440feet).[3] The observation arc was then increased to of 78 days.[4]
When rated at Torino Scale level 1, there was a 0.0012% chance or a 1 in 83,000 chance of the asteroid colliding with the Earth, corresponding to a 99.9988% chance the asteroid will miss the Earth.[5] had been observed 14 times[6] at the observatories Mauna Kea, Apache Point, Pan-STARRS 1 Haleakala and Magdalena Ridge Observatory .[7]
was subsequently removed from the list of possible impactors thanks to prediscovery observations found in the Pan-STARRS archive.
2016 EU85 was observed with the Spacewatch 1.8-meter telescopes and also the Vatican Advanced Technology Telescope.[8] [9]