2019 UD is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2019 UD 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.
2019 UD orbits the sun every 303 days (0.83 years), coming as close as 0.74 AU and reaching as far as 1.03 AU from the sun. Based on its brightness and the way it reflects light, 2019 UD is probably between 0.007 to 0.031 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.
2019 UD'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.
2019 UD has 11 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| Oct. 24, 2019 | 3,304,124 | 3.124 |
| June 24, 2024 | 27,762,758 | 3.711 |
| Nov. 13, 2024 | 8,289,174 | 5.248 |
| Aug. 31, 2043 | 26,697,513 | 9.113 |
| Aug. 31, 2048 | 6,519,946 | 4.699 |
| Jan. 15, 2049 | 26,481,757 | 3.604 |
| Sept. 27, 2053 | 4,069,164 | 3.040 |
| July 9, 2058 | 24,547,586 | 2.462 |
| Nov. 10, 2058 | 3,272,490 | 4.141 |
| Aug. 31, 2072 | 16,096,717 | 6.833 |
| Nov. 12, 2077 | 6,774,471 | 4.844 |
2019 UD's orbit is determined by observations dating back to Oct. 5, 2019. It was last officially observed on Nov. 1, 2019. The IAU Minor Planet Center records 54 observations used to determine its orbit.
2019 UD can be reached with a journey of 442 days. This trajectory would require a delta-v of 6.816 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 208,344 potential trajectories and launch windows to this asteroid.
See more at the NHATS Mission Trajectories table for 2019 UD.
The position of 2019 UD 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.