Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 8,439,934 km of Earth in 2020
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2002 XQ40 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2002 XQ40 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.

2002 XQ40 orbits the sun every 407 days (1.11 years), coming as close as 0.70 AU and reaching as far as 1.45 AU from the sun. Based on its brightness and the way it reflects light, 2002 XQ40 is probably between 0.092 to 0.206 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2002 XQ40's orbit is 0.01 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.

2002 XQ40 has 20 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 25, 2020 8,439,934 9.403
Dec. 10, 2041 6,507,639 9.678
May 18, 2049 17,278,885 14.335
Dec. 17, 2051 13,086,504 13.622
May 24, 2059 2,814,077 10.799
June 2, 2069 24,147,330 6.302
Dec. 5, 2080 24,159,743 6.143
Dec. 13, 2090 2,115,390 11.376
June 1, 2098 21,240,304 6.862
May 18, 2107 25,539,439 16.000
Dec. 18, 2109 16,004,780 14.208
Nov. 20, 2118 28,210,875 6.176
May 25, 2126 3,208,860 11.383
Dec. 9, 2137 16,534,195 7.675
May 25, 2145 2,510,528 11.095
May 19, 2164 19,425,226 14.784
Dec. 19, 2166 16,673,720 14.353
Dec. 13, 2185 3,420,247 10.305
May 22, 2193 11,523,816 13.209
Dec. 20, 2195 19,067,973 14.833

Images and Observations

2002 XQ40's orbit is determined by observations dating back to Dec. 11, 2002. It was last officially observed on Jan. 18, 2013. The IAU Minor Planet Center records 127 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 2002 XQ40:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 1.075 AU
  • Eccentricity: 0.3512
  • Inclination: 2.19°
  • Longitude of Ascending Node: 270.4°
  • Argument of Periapsis: 73.0°
  • Mean Anomaly: 303.67°

Physical Characteristics

  • Diameter: ~0.119 km
  • Magnitude: 22.3

Derived Characteristics

  • Orbit Period: 407 days (1.11 years)
  • Avg. Orbit Speed: 28.73 km/s
  • Aphelion Distance: 1.45 AU
  • Perihelion Distance: 0.70 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 2002 XQ40 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.