2016 SZ1 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2016 SZ1 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.
2016 SZ1 orbits the sun every 593 days (1.62 years), coming as close as 0.83 AU and reaching as far as 1.93 AU from the sun. Based on its brightness and the way it reflects light, 2016 SZ1 is probably between 0.015 to 0.033 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.
2016 SZ1's orbit is 0.01 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.
2016 SZ1 has 1 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| Feb. 19, 2025 | 21,566,569 | 13.984 |
2016 SZ1's orbit is determined by observations dating back to Sept. 25, 2016. It was last officially observed on Sept. 30, 2016. The IAU Minor Planet Center records 34 observations used to determine its orbit.
The position of 2016 SZ1 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.