Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 10,448,445 km of Earth in 2021
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2013 YR2 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2013 YR2 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.

2013 YR2 orbits the sun every 510 days (1.40 years), coming as close as 0.96 AU and reaching as far as 1.54 AU from the sun. Based on its brightness and the way it reflects light, 2013 YR2 is probably between 0.025 to 0.112 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2013 YR2's orbit is 0.04 AU from Earth's orbit at its closest point. This means that there is an wide berth between this asteroid and Earth at all times.

2013 YR2 has 6 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Jan. 16, 2021 10,448,445 6.935
May 7, 2046 25,555,479 9.581
Jan. 16, 2060 12,909,352 7.468
April 30, 2085 13,319,596 6.644
Jan. 11, 2099 23,997,299 9.774
May 8, 2124 25,556,786 9.591

Images and Observations

2013 YR2's orbit is determined by observations dating back to Dec. 25, 2013. It was last officially observed on May 20, 2014. The IAU Minor Planet Center records 29 observations used to determine its orbit.

Accessibility and Exploration

2013 YR2 can be reached with a journey of 362 days. This trajectory would require a delta-v of 8.71 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 21,331 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2013 YR2.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2013 YR2:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 1.248 AU
  • Eccentricity: 0.2343
  • Inclination: 4.15°
  • Longitude of Ascending Node: 97.5°
  • Argument of Periapsis: 66.08°
  • Mean Anomaly: 169.71°

Physical Characteristics

  • Diameter: ~0.069 km
  • Magnitude: 24.2

Derived Characteristics

  • Orbit Period: 510 days (1.40 years)
  • Avg. Orbit Speed: 26.62 km/s
  • Aphelion Distance: 1.54 AU
  • Perihelion Distance: 0.96 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2013 YR2 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.

Size Rendering

The below comparison is an artistic rendering that uses available data on the diameter of 2013 YR2 to create an approximate landscape rendering with New York City in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.