2018 UA is a small near-Earth Apollo asteroid that flew very close to the Earth on 19 October 2018. It was discovered about 90 minutes before closest approach. After A106fgF, it was probably the second closest non-impacting approach of an asteroid in 2018.
 The 10 minute motion of 2018 UA past the Earth on 19 October 2018 | |
| Discovery | |
|---|---|
| Discovery date | 19 October 2018 |
| Designations | |
| 2018 UA | |
| Orbital characteristics | |
| Aphelion | 2.010531 AU |
| Perihelion | 0.768136 AU |
| 1.38933 AU | |
| Eccentricity | 0.447119 |
| 1.64 yr (598.15 d) | |
| 83.09092° | |
| 0° 36m 6.69s / day | |
| Inclination | 2.63971° |
| 205.68400° | |
| 255.21993° | |
| Earth MOID | 0.000186 AU |
| Physical characteristics | |
| 30.158 | |
External links
edit- Asteroid 2018 UA flew past Earth at 0.04 LD, 4th closest on record
- Truck-size asteroid makes fourth-closest pass by Earth on record
- Small asteroid passed closer than TV satellites
- MPEC 2018-U19 : 2018 UA Minor Planet Center
- 2018 UA at NeoDyS-2, Near Earth Objects—Dynamic Site
- 2018 UA at ESA–space situational awareness
- 2018 UA at the JPL Small-Body Database
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