Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 2,746,011 km of Earth in 2022
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation


2022 UJ1 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2022 UJ1 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.

2022 UJ1 orbits the sun every 339 days (0.93 years), coming as close as 0.89 AU and reaching as far as 1.02 AU from the sun. Based on its brightness and the way it reflects light, 2022 UJ1 is probably between 0.005 to 0.020 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2022 UJ1'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.

2022 UJ1 has 6 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Oct. 18, 2022 2,746,011 4.499
March 18, 2023 16,624,918 5.136
Oct. 18, 2035 2,888,638 4.483
March 13, 2036 17,510,779 5.107
Oct. 8, 2047 25,328,956 7.740
Oct. 14, 2072 2,447,282 4.649

Images and Observations

2022 UJ1's orbit is determined by observations dating back to Oct. 17, 2022. It was last officially observed on Oct. 25, 2022. The IAU Minor Planet Center records 16 observations used to determine its orbit.

Accessibility and Exploration

2022 UJ1 can be reached with a journey of 178 days. This trajectory would require a delta-v of 5.769 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 270,397 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2022 UJ1.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2022 UJ1:



   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.9519 AU
  • Eccentricity: 0.0663
  • Inclination: 8.28°
  • Longitude of Ascending Node: 24.71°
  • Argument of Periapsis: 196.87°
  • Mean Anomaly: 151.11°

Physical Characteristics

  • Diameter: ~0.012 km
  • Magnitude: 27.91

Derived Characteristics

  • Orbit Period: 339 days (0.93 years)
  • Avg. Orbit Speed: 30.55 km/s
  • Aphelion Distance: 1.02 AU
  • Perihelion Distance: 0.89 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2022 UJ1 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.