Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 2,126,542 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation


2019 YM is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2019 YM 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 YM orbits the sun every 1,160 days (3.18 years), coming as close as 0.70 AU and reaching as far as 3.61 AU from the sun. Based on its brightness and the way it reflects light, 2019 YM is probably between 0.017 to 0.037 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2019 YM'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.

2019 YM has 3 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Dec. 21, 2019 2,126,542 17.137
May 26, 2023 20,060,090 21.731
May 22, 2058 11,634,568 19.865

NASA Sentry has assessed impact risk for 2 very close approach scenarios. Here are the top scenarios ordered by probability of impact:

Date Probability of Impact (%) Impact Energy (Mt)
Dec. 21, 2117 0.00009 0.717
Dec. 20, 2041 0.00000 0.7053

Images and Observations

2019 YM's orbit is determined by observations dating back to Dec. 19, 2019. It was last officially observed on Dec. 21, 2019. The IAU Minor Planet Center records 31 observations used to determine its orbit.

Accessibility and Exploration

This asteroid is not considered a viable target for human exploration by the NHATS study.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2019 YM:



   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.157 AU
  • Eccentricity: 0.6744
  • Inclination: 2.22°
  • Longitude of Ascending Node: 88.21°
  • Argument of Periapsis: 71.77°
  • Mean Anomaly: 48.66°

Physical Characteristics

  • Diameter: ~0.022 km
  • Magnitude: 26.01

Derived Characteristics

  • Orbit Period: 1,160 days (3.18 years)
  • Avg. Orbit Speed: 20.23 km/s
  • Aphelion Distance: 3.61 AU
  • Perihelion Distance: 0.70 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2019 YM 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.