2010 WR7

Very small Apollo-class Asteroid

Near-Earth
Space Reference » Apollo-class Asteroids » 2010 WR7

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 7,473,702 km of Earth in 2025
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2010 WR7 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2010 WR7 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 WR7 orbits the sun every 391 days (1.07 years), coming as close as 0.80 AU and reaching as far as 1.29 AU from the sun. Based on its brightness and the way it reflects light, 2010 WR7 is probably between 0.035 to 0.155 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2010 WR7's orbit is 0.03 AU from Earth's orbit at its closest point. This means that there is a wide berth between this asteroid and Earth at all times.

2010 WR7 has 35 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Dec. 20, 2025 7,473,702 8.266
March 28, 2027 29,530,182 7.190
June 30, 2028 9,060,522 8.560
Dec. 13, 2040 29,747,358 12.923
Feb. 24, 2042 26,830,659 6.472
June 21, 2043 13,201,643 4.509
Dec. 25, 2056 9,042,681 5.301
April 19, 2058 27,807,372 6.632
July 6, 2059 24,623,853 11.709
Dec. 20, 2071 11,030,118 9.055
March 23, 2073 29,457,064 7.197
June 30, 2074 6,570,922 7.993
Dec. 16, 2086 22,111,312 11.351
March 8, 2088 28,487,108 6.957
June 27, 2089 5,531,552 6.200
Jan. 19, 2103 18,560,189 4.341
May 7, 2104 24,908,393 5.823
July 29, 2104 28,432,696 4.617
Dec. 21, 2117 8,703,532 8.542
March 27, 2119 29,524,507 7.202
July 1, 2120 6,621,850 7.994
Feb. 22, 2134 26,266,077 6.321
June 20, 2135 14,940,574 4.198
Dec. 27, 2148 8,327,655 5.459
April 21, 2150 27,736,136 6.623
July 8, 2151 25,468,130 11.872
Dec. 23, 2163 5,769,338 7.842
April 1, 2165 29,477,998 7.170
July 3, 2166 10,328,656 8.826
Dec. 16, 2178 27,759,474 12.513
Feb. 29, 2180 27,306,291 6.614
June 25, 2181 11,584,555 4.830
Dec. 27, 2194 7,570,833 5.632
April 19, 2196 28,074,203 6.722
July 7, 2197 23,473,317 11.478

Images and Observations

2010 WR7's orbit is determined by observations dating back to Nov. 27, 2010. It was last officially observed on Aug. 12, 2012. The IAU Minor Planet Center records 57 observations used to determine its orbit.

Accessibility and Exploration

2010 WR7 can be reached with a journey of 394 days. This trajectory would require a delta-v of 7.651 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 243,765 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2010 WR7.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2010 WR7:

References

Search

   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.046 AU
  • Eccentricity: 0.2354
  • Inclination: 1.56°
  • Longitude of Ascending Node: 20.44°
  • Argument of Periapsis: 159.16°
  • Mean Anomaly: 254.33°

Physical Characteristics

  • Diameter: ~0.095 km
  • Magnitude: 23.5

Derived Characteristics

  • Orbit Period: 391 days (1.07 years)
  • Avg. Orbit Speed: 29.10 km/s
  • Aphelion Distance: 1.29 AU
  • Perihelion Distance: 0.80 AU

Map Comparison

Click to load map

Orbit Simulation

⧉

Sky Map

The position of 2010 WR7 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 2010 WR7 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.