2023 DH1 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2023 DH1 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.
2023 DH1 orbits the sun every 328 days (0.90 years), coming as close as 0.70 AU and reaching as far as 1.16 AU from the sun. Based on its brightness and the way it reflects light, 2023 DH1 is probably between 0.008 to 0.035 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.
2023 DH1'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.
2023 DH1 has 24 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| Feb. 25, 2023 | 1,082,886 | 7.048 |
| June 27, 2024 | 9,087,621 | 7.966 |
| March 12, 2032 | 15,662,654 | 5.030 |
| June 23, 2033 | 24,084,342 | 11.544 |
| April 14, 2041 | 24,197,182 | 5.626 |
| May 5, 2050 | 24,963,481 | 5.609 |
| May 18, 2059 | 23,464,786 | 5.374 |
| May 18, 2068 | 23,524,822 | 5.363 |
| May 6, 2077 | 25,153,406 | 5.614 |
| April 18, 2086 | 25,396,326 | 5.755 |
| March 17, 2095 | 18,353,159 | 5.152 |
| June 23, 2096 | 20,650,676 | 10.898 |
| Feb. 25, 2104 | 4,392,419 | 6.369 |
| June 27, 2105 | 9,757,910 | 8.238 |
| Feb. 26, 2113 | 8,268,144 | 5.712 |
| June 26, 2114 | 12,636,159 | 9.092 |
| June 24, 2123 | 21,413,955 | 11.105 |
| June 21, 2132 | 28,214,175 | 12.525 |
| April 4, 2149 | 23,464,330 | 5.630 |
| April 9, 2158 | 24,348,433 | 5.695 |
| March 1, 2184 | 29,112,846 | 13.091 |
| May 24, 2185 | 22,745,117 | 5.292 |
| Aug. 3, 2185 | 28,176,089 | 4.395 |
| Feb. 27, 2193 | 19,762,200 | 11.195 |
2023 DH1's orbit is determined by observations dating back to Feb. 28, 2023. It was last officially observed on March 14, 2023. The IAU Minor Planet Center records 74 observations used to determine its orbit.
2023 DH1 can be reached with a journey of 346 days. This trajectory would require a delta-v of 7.067 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 133,106 potential trajectories and launch windows to this asteroid.
See more at the NHATS Mission Trajectories table for 2023 DH1.
The position of 2023 DH1 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.