(620094) 2016 AJ193
Near-Earth asteroid
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(620094) 2016 AJ193 (provisional designation 2016 AJ193; also known as 2010 KV134) is a near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 1.4 kilometres (0.87 mi) in diameter. It was discovered on 17 May 2010 by the Wide-field Infrared Survey Explorer (WISE) satellite, but was lost until it was reobserved on 16 January 2016.[5][2] With an observation arc over 11 years, 2016 AJ193 has a well-determined orbit and trajectory through the year 2086.[3] The asteroid's orbit is only potentially hazardous on a time scale of thousands of years.[6][7]
(first observation only)
| |
| Discovery[1][2] | |
|---|---|
| Discovered by | WISE |
| Discovery site | Low Earth orbit |
| Discovery date | 17 May 2010 (first observation only) |
| Designations | |
| 2016 AJ193 | |
| 2010 KV134 | |
| NEO · Apollo · PHA[3] | |
| Orbital characteristics[3] | |
| Epoch 1 July 2020 (JD 2459396.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 11.51 yr (4,204 days) |
| Earliest precovery date | 16 February 2010 |
| Aphelion | 5.931 AU |
| Perihelion | 0.5999 AU |
| 3.265 AU | |
| Eccentricity | 0.8163 |
| 5.90 yr (2,155 days) | |
| 344.173° | |
| 0° 10m 1.359s / day | |
| Inclination | 22.570° |
| 331.285° | |
| 81.996° | |
| Earth MOID | 0.01553 AU (2,323,000 km) |
| Physical characteristics | |
| 1.374±0.403 km[3] | |
| 3.508±0.001 h[4] | |
| 0.031±0.031[3] | |
| 18.99[3][1] | |
On 21 August 2021, the asteroid safely made a close approach to Earth from a distance of 0.0229 AU (3.43 million km; 2.13 million mi), or 8.92 lunar distances (LD). During closest approach, 2016 AJ193 reached a peak apparent magnitude of 14, visible to ground-based observers with telescope apertures of at least 20 cm (8 in).[4][6] It is the largest asteroid that approached within 10 LD (3.8 million km; 2.4 million mi) of Earth in 2021.[8]
The asteroid received the permanent minor planet number 620094 by the Minor Planet Center on 7 April 2023.[9]
