| Discovery[1][2] | |
|---|---|
| Discovered by | MLS |
| Discovery site | Mount Lemmon Obs. |
| Discovery date | 11 December 2014 |
| Designations | |
| 2014 XL7 | |
| Orbital characteristics[3] | |
| Epoch 1 July 2021 (JD 2459396.5) | |
| Uncertainty parameter 2[2][3] | |
| Observation arc | 1.95 yr (713 d) |
| Aphelion | 2.5362 AU |
| Perihelion | 0.7719 AU |
| 1.6540 AU | |
| Eccentricity | 0.5333 |
| 2.13 yr (777 d) | |
| 80.070° | |
| 0° 27m 47.88s / day | |
| Inclination | 7.5019° |
| 74.478° | |
| 250.76° | |
| Earth MOID | 0.00217 AU (0.84 LD) |
| Physical characteristics | |
| 25.82[6] | |
| 21.0[2][3] | |
2014 XL7 is a near-Earth object and Apollo asteroid, approximately 230 meters (750 feet) in diameter. It was the most dangerous potentially hazardous asteroid on Sentry Risk Table upon its discovery by the Mount Lemmon Survey in December 2014.[7] At the time, the asteroid had a cumulative 1 in 83000 chance of impacting Earth on 4–5 June between the years 2048 and 2084.[4] After the object's observation arc had been extended to 35 days, it was removed from the Sentry Risk Table on 15 January 2015.[8] Since then the asteroid's orbit has been secured. Although it has an Earth minimum orbit intersection distance of less than one lunar distance, there are no projected close encounters with Earth in the foreseeable future, with its closest passage to occur in May 2046, still millions of kilometers away.[9]
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