2018 FB4 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2018 FB4 as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated any imminent likelihood of future collision.
2018 FB4 orbits the sun every 327 days (0.90 years), coming as close as 0.57 AU and reaching as far as 1.29 AU from the sun. Based on its brightness and the way it reflects light, 2018 FB4 is probably between 0.008 to 0.019 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.
2018 FB4's orbit is 0.02 AU from Earth's orbit at its closest point. This means that there is a wide berth between this asteroid and Earth at all times.
2018 FB4 has 13 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| March 22, 2035 | 14,566,075 | 16.210 |
| March 21, 2044 | 22,394,517 | 11.005 |
| March 19, 2061 | 8,028,865 | 12.654 |
| March 20, 2078 | 2,896,682 | 14.091 |
| March 25, 2087 | 28,925,903 | 10.624 |
| March 25, 2095 | 29,027,711 | 18.869 |
| March 20, 2104 | 4,877,856 | 13.137 |
| March 22, 2121 | 10,055,098 | 15.434 |
| March 23, 2130 | 24,587,493 | 10.852 |
| March 20, 2147 | 6,211,424 | 12.919 |
| March 20, 2164 | 3,285,677 | 14.208 |
| March 25, 2173 | 28,173,153 | 10.654 |
| March 21, 2190 | 2,759,917 | 13.537 |
2018 FB4's orbit is determined by observations dating back to March 21, 2018. It was last officially observed on March 22, 2018. The IAU Minor Planet Center records 31 observations used to determine its orbit.
The position of 2018 FB4 is indicated by a ◯ pink circle. Note that the object may not be in your current field of view. Use the controls below to adjust position, location, and time.