Key Facts

  • Categorized as a Interior-Earth Asteroid
  • Comparable in size to the U.S. Capitol building
  • Will pass within 19,014,150 km of Earth in 2025
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2010 XB11 is a very small asteroid with an orbit that is entirely confined within Earth's orbit. NASA JPL has classified 2010 XB11 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.

2010 XB11 orbits the sun every 177 days (0.49 years), coming as close as 0.29 AU and reaching as far as 0.95 AU from the sun. Based on its brightness and the way it reflects light, 2010 XB11 is probably between 0.278 to 0.622 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to the U.S. Capitol building.

Close Approaches

2010 XB11's orbit is 0.09 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.

2010 XB11 has 27 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Jan. 3, 2025 19,014,150 18.939
Jan. 1, 2026 16,354,546 16.261
Jan. 4, 2042 22,333,585 19.661
Jan. 2, 2043 14,551,190 16.624
Jan. 4, 2044 28,861,124 15.873
Jan. 5, 2059 26,132,124 20.470
Jan. 2, 2060 13,842,516 17.107
Jan. 3, 2061 25,339,195 15.788
Jan. 2, 2077 14,480,884 17.641
Jan. 2, 2078 22,109,049 15.833
Jan. 3, 2094 16,271,341 18.232
Jan. 2, 2095 19,163,011 15.994
Jan. 5, 2111 18,956,139 18.915
Jan. 3, 2112 16,574,909 16.258
Jan. 6, 2128 22,308,752 19.681
Jan. 3, 2129 14,715,371 16.615
Jan. 5, 2130 29,035,325 15.846
Jan. 6, 2145 26,136,123 20.491
Jan. 3, 2146 13,971,218 17.092
Jan. 4, 2147 25,515,351 15.780
Jan. 7, 2162 29,890,721 21.287
Jan. 4, 2163 14,543,037 17.636
Jan. 4, 2164 22,351,414 15.815
Jan. 5, 2180 16,222,346 18.219
Jan. 3, 2181 19,455,501 15.959
Jan. 4, 2197 18,912,360 18.897
Jan. 3, 2198 16,804,513 16.239

Images and Observations

2010 XB11's orbit is determined by observations dating back to Dec. 2, 2010. It was last officially observed on Nov. 17, 2015. The IAU Minor Planet Center records 40 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 2010 XB11:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 0.618029089616 AU
  • Eccentricity: 0.53387251228
  • Inclination: 29.8865739413°
  • Longitude of Ascending Node: 96.315122336°
  • Argument of Periapsis: 202.484305575°
  • Mean Anomaly: 229.654991853°

Physical Characteristics

  • Diameter: ~0.359 km
  • Magnitude: 19.9

Derived Characteristics

  • Orbit Period: 177 days (0.49 years)
  • Avg. Orbit Speed: 37.89 km/s
  • Aphelion Distance: 0.95 AU
  • Perihelion Distance: 0.29 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 2010 XB11 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.