2014 UR116
Discovery[1][2]
Discovered byMount Lemmon Srvy.
Discovery siteMount Lemmon Obs.
Discovery date1 December 2008
Designations
2014 UR116
2014 UR116 · 2008 XB
Apollo · NEO · PHA[1][2]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc8.23 yr (3,005 days)
Aphelion3.5757 AU
Perihelion0.5648 AU
2.0703 AU
Eccentricity0.7272
2.98 yr (1,088 days)
2.0212°
0° 19m 51.24s / day
Inclination6.5740°
6.0028°
286.79°
Earth MOID0.0290 AU · 11.3 LD
Physical characteristics
Dimensions0.4 km[3]
19.7[1]

    2014 UR116, also known as 2008 XB, is an eccentric sub-kilometer asteroid, categorized as a near-Earth object and potentially hazardous asteroid of the Apollo group with a diameter of approximately 400 meters (1,300 ft).[3] It was first observed on 1 December 2008, by the Mount Lemmon Survey at Mount Lemmon Observatory in Arizona, United States.[2]

    Orbit

    2014 UR116 orbits the Sun at a distance of 0.6–3.6 AU once every 3 years (1,088 days). Its orbit has an eccentricity of 0.73 and an inclination of 7° with respect to the ecliptic.[1]

    Close approaches

    The asteroid has an Earth minimum orbital intersection distance of 0.0290 AU (4,340,000 km) which translates into 11.3 lunar distances.[1] On 21 October 2014, it passed 0.0854 AU (12,780,000 km; 7,940,000 mi) from Earth.[4] On 10 April 2047, the asteroid will safely pass 0.0296 AU (4,430,000 km; 2,750,000 mi) from Earth.[4]

    Although some inaccurate press reports have suggested that it may pose an impact risk to Earth, the NASA/JPL Near Earth Object Program Office reported that it poses no risk of impact to any planet for at least 150 years.[3][5] Between 1904 and 2174, the closest approach it makes to any planet was on 9 June 2008 when it passed 0.0144 AU (2,150,000 km; 1,340,000 mi) from Mars. The asteroid has never been listed on the Sentry Risk Table and has a well determined orbit with an observation arc of 6 years.[4]

    Discovery

    The asteroid was first detected on 1 December 2008 by the Mount Lemmon Survey and received the provisional designation 2008 XB.[2] However, at an apparent magnitude of 20 and an assumed orbital eccentricity of 0.3, the object had a very short observation arc of less than 2 hours and the body became a lost minor planet.[6] It was only recovered as 2014 UR116 on 27 October 2014, by observers at the MASTER-II Observatory (C41) at Pulkovo Observatory in Kislovodsk, Russia.[4]

    See also

    • 2014 OO6, one of the most dangerous asteroids discovered in 2014 that is on the Sentry Risk Table

    References

    1. 1 2 3 4 5 6 "JPL Small-Body Database Browser: (2014 UR116)" (2017-02-22 last obs.). Jet Propulsion Laboratory. Retrieved 2 August 2017.
    2. 1 2 3 4 "2014 UR116". Minor Planet Center. Retrieved 2 August 2017.
    3. 1 2 3 Yeomans, Don; Baalke, Ron (8 December 2014). "Asteroid 2014 UR116, A 400-meter Sized Near-Earth Asteroid, Represents No Threat to the Earth". NASA/JPL Near-Earth Object Program Office. Archived from the original on 9 February 2015.
    4. 1 2 3 4 "JPL Close-Approach Data: (2014 UR116)" (last observation: 11 December 2014; arc: 6 years). Retrieved 10 December 2014.
    5. ↑ "NASA Says Asteroid 2014 UR116 Is Nothing to Be Afraid Of". NBC News. 9 December 2014.
    6. ↑ "MPEC 2008-X16 : 2008 XB". IAU Minor Planet Center. 1 December 2008. Retrieved 10 December 2014. (K08X00B)
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