Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 28,572,750 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation


2023 MU2 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2023 MU2 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 MU2 orbits the sun every 451 days (1.23 years), coming as close as 0.96 AU and reaching as far as 1.34 AU from the sun. Based on its brightness and the way it reflects light, 2023 MU2 is probably between 0.003 to 0.012 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2023 MU2's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is very close to Earth's orbit.

2023 MU2 has 6 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
June 3, 2019 28,572,750 9.820
June 25, 2023 216,998 4.518
Nov. 20, 2023 29,564,653 3.100
Oct. 12, 2039 12,079,547 6.378
June 16, 2044 9,431,154 5.961
Oct. 2, 2060 3,203,381 4.191

Images and Observations

2023 MU2's orbit is determined by observations dating back to June 16, 2023. It was last officially observed on June 26, 2023. The IAU Minor Planet Center records 75 observations used to determine its orbit.

Accessibility and Exploration

2023 MU2 can be reached with a journey of 330 days. This trajectory would require a delta-v of 6.016 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 301,402 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2023 MU2.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2023 MU2:



   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.151 AU
  • Eccentricity: 0.1622
  • Inclination: 1.2°
  • Longitude of Ascending Node: 94.97°
  • Argument of Periapsis: 229.87°
  • Mean Anomaly: 25.53°

Physical Characteristics

  • Diameter: ~0.007 km
  • Magnitude: 29.09

Derived Characteristics

  • Orbit Period: 451 days (1.23 years)
  • Avg. Orbit Speed: 27.76 km/s
  • Aphelion Distance: 1.34 AU
  • Perihelion Distance: 0.96 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2023 MU2 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.