2017 FS91 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2017 FS91 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.
2017 FS91 orbits the sun every 314 days (0.86 years), coming as close as 0.65 AU and reaching as far as 1.16 AU from the sun. Based on its brightness and the way it reflects light, 2017 FS91 is probably between 0.010 to 0.043 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.
2017 FS91's orbit is 0.01 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.
2017 FS91 has 19 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| March 26, 2023 | 20,344,883 | 11.664 |
| July 7, 2024 | 23,464,500 | 12.024 |
| July 10, 2030 | 11,029,669 | 9.208 |
| July 10, 2036 | 6,695,915 | 7.503 |
| July 8, 2042 | 9,331,842 | 6.264 |
| June 23, 2048 | 16,424,955 | 5.514 |
| May 22, 2054 | 23,380,406 | 6.116 |
| March 24, 2060 | 1,598,562 | 7.834 |
| March 26, 2073 | 22,130,324 | 12.120 |
| July 13, 2074 | 9,860,168 | 9.009 |
| March 24, 2093 | 12,140,418 | 10.083 |
| July 12, 2094 | 18,023,662 | 10.951 |
| March 25, 2113 | 1,532,564 | 7.855 |
| July 11, 2114 | 27,376,265 | 12.877 |
| June 8, 2127 | 22,414,330 | 5.915 |
| March 29, 2133 | 28,053,973 | 13.292 |
| July 15, 2134 | 7,089,148 | 7.708 |
| March 30, 2166 | 28,497,939 | 13.376 |
| July 15, 2167 | 8,520,779 | 8.481 |
2017 FS91's orbit is determined by observations dating back to March 26, 2017. It was last officially observed on April 3, 2017. The IAU Minor Planet Center records 96 observations used to determine its orbit.
2017 FS91 can be reached with a journey of 354 days. This trajectory would require a delta-v of 8.324 km/s. To put this into perspective, the delta-v to launch a rocket to Low-Earth Orbit is 9.7 km/s. There are 105,821 potential trajectories and launch windows to this asteroid.
See more at the NHATS Mission Trajectories table for 2017 FS91.
The position of 2017 FS91 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.