Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 10,230,386 km of Earth in 2022
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2010 RF12 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2010 RF12 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 RF12 orbits the sun every 399 days (1.09 years), coming as close as 0.86 AU and reaching as far as 1.26 AU from the sun. Based on its brightness and the way it reflects light, 2010 RF12 is probably between 0.006 to 0.014 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2010 RF12's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.

2010 RF12 has 14 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Sept. 23, 2022 10,230,386 3.315
March 1, 2024 27,543,651 10.630
July 17, 2034 29,426,604 4.367
Dec. 2, 2034 18,716,732 4.775
April 10, 2035 28,275,436 4.296
Aug. 29, 2045 25,010,374 10.041
Feb. 9, 2047 8,641,535 3.473
Aug. 31, 2057 17,207,516 8.499
Feb. 17, 2059 3,536,590 4.441
Aug. 5, 2070 22,601,348 3.327
Nov. 1, 2070 17,444,753 4.363
Aug. 30, 2082 15,870,963 8.226
Feb. 13, 2084 7,720,265 3.612
Sept. 5, 2095 1,767 21.841

NASA Sentry has assessed impact risk for 73 very close approach scenarios. Here are the top scenarios ordered by probability of impact:

Date Distance from Earth (km) Distance Error (km) Probability of Impact (%) Impact Energy (Mt)
Sept. 5, 2095 2,811.96 ±3.84 4.95300 0.009005
Sept. 5, 2095 2,754.18 ±5.31 0.36470 0.00901
Sept. 4, 2096 2,568.00 ±1.95 0.00679 0.009017
Sept. 5, 2100 1,868.22 ±16.43 0.00215 0.009011
Sept. 5, 2099 2,362.56 ±8.80 0.00088 0.009018
Sept. 5, 2100 2,734.92 ±16.32 0.00087 0.009015
Sept. 6, 2113 2,324.04 ±1.39 0.00076 0.009014
Sept. 5, 2104 3,068.76 ±71.98 0.00075 0.009002
Sept. 5, 2112 1,014.36 ±1.33 0.00070 0.009008
March 4, 2117 2,266.26 ±11.82 0.00065 0.009009
Sept. 5, 2104 4,962.66 ±51.89 0.00055 0.009007
Sept. 5, 2104 3,749.28 ±8.27 0.00055 0.009013
Sept. 6, 2111 1,720.56 ±1.30 0.00050 0.009004
Sept. 6, 2114 5,405.64 ±1.92 0.00045 0.008998
Sept. 5, 2098 5,765.16 ±7.71 0.00042 0.009005
Sept. 6, 2109 4,866.36 ±8.28 0.00036 0.008999
Sept. 5, 2098 5,033.28 ±2.05 0.00034 0.009011
Sept. 5, 2108 4,173.00 ±7.16 0.00032 0.009
Sept. 6, 2102 5,848.62 ±6.19 0.00030 0.009012
Sept. 6, 2101 2,773.44 ±3.91 0.00026 0.009006
Sept. 5, 2099 3,832.74 ±3.51 0.00025 0.009028
Sept. 5, 2112 3,749.28 ±2.74 0.00023 0.009001
Sept. 6, 2103 3,954.72 ±2.56 0.00022 0.009009
Sept. 5, 2112 4,590.30 ±6.01 0.00021 0.009014
Sept. 5, 2108 3,614.46 ±1.14 0.00020 0.009002
Sept. 6, 2110 5,193.78 ±2.68 0.00018 0.009019
Sept. 6, 2102 2,503.80 ±2.43 0.00018 0.009005
Sept. 6, 2102 3,993.24 ±3.09 0.00018 0.009022
Sept. 5, 2099 2,889.00 ±10.56 0.00017 0.009026
Sept. 6, 2110 4,320.66 ±5.70 0.00017 0.009015
Sept. 6, 2111 5,623.92 ±2.81 0.00016 0.008992
Sept. 5, 2104 3,819.90 ±8.83 0.00014 0.009017
Sept. 6, 2103 6,220.98 ±5.71 0.00014 0.009007
Sept. 4, 2096 2,471.70 ±3.85 0.00012 0.009025
Sept. 6, 2109 5,758.74 ±5.63 0.00011 0.009007
Sept. 6, 2111 5,656.02 ±6.29 0.00011 0.009011
Sept. 6, 2105 4,776.48 ±2.72 0.00011 0.009014
Sept. 6, 2109 5,270.82 ±8.18 0.00011 0.009007
Sept. 6, 2106 3,402.60 ±6.94 0.00010 0.009004
Sept. 6, 2107 2,702.82 ±2.22 0.00010 0.009013
Sept. 6, 2109 4,173.00 ±2.39 0.00009 0.009003
Sept. 6, 2114 3,351.24 ±1.99 0.00009 0.008997
Sept. 5, 2116 6,407.16 ±1.38 0.00006 0.009011
Sept. 6, 2103 3,941.88 ±47.51 0.00006 0.009012
Sept. 5, 2098 5,932.08 ±9.71 0.00005 0.009011
Sept. 6, 2117 5,058.96 ±4.34 0.00005 0.009011
Sept. 5, 2112 5,392.80 ±7.61 0.00005 0.009024
Sept. 5, 2110 6,285.18 ±1.66 0.00004 0.009008
Sept. 5, 2104 918.06 ±74.39 0.00003 0.00901
Sept. 6, 2108 2,548.74 ±0.51 0.00002 0.008995
Sept. 5, 2098 3,730.02 ±4.73 0.00002 0.00901
Sept. 5, 2104 5,713.80 ±25.50 0.00002 0.009008
Sept. 6, 2102 2,067.24 ±2.68 0.00002 0.009009
Sept. 5, 2112 5,148.84 ±7.94 0.00002 0.009033
Sept. 6, 2102 1,694.88 ±30.85 0.00001 0.009017
Sept. 5, 2099 5,572.56 ±2.81 0.00001 0.009038
Sept. 5, 2100 4,198.68 ±7.44 0.00001 0.009013
Sept. 6, 2101 3,787.80 ±5.94 0.00001 0.009015
Sept. 6, 2109 2,356.14 ±3.90 0.00001 0.009007
Sept. 6, 2107 2,914.68 ±3.28 0.00001 0.009018
Sept. 6, 2103 3,582.36 ±18.18 0.00001 0.009006
Sept. 6, 2103 4,134.48 ±3.35 0.00001 0.009018
Sept. 5, 2109 3,569.52 ±6.65 0.00001 0.009015
Sept. 6, 2115 1,675.62 ±3.26 0.00001 0.009023
Sept. 5, 2104 4,506.84 ±2.96 0.00001 0.009013
Sept. 6, 2105 4,410.54 ±4.05 0.00001 0.009021
Sept. 6, 2111 5,412.06 ±4.18 0.00000 0.008999
Sept. 6, 2109 5,861.46 ±15.46 0.00000 0.009011
March 4, 2117 2,484.54 ±17.79 0.00000 0.009021
Sept. 6, 2113 2,227.74 ±1.96 0.00000 0.009027
Sept. 6, 2114 5,296.50 ±1.03 0.00000 0.00901
Sept. 5, 2112 873.12 ±1.93 0.00000 0.009022
Sept. 6, 2111 1,887.48 ±1.71 0.00000 0.00902

Images and Observations

2010 RF12's orbit is determined by observations dating back to Sept. 5, 2010. It was last officially observed on Sept. 8, 2010. The IAU Minor Planet Center records 316 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 RF12:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 1.06048163873 AU
  • Eccentricity: 0.188273182799
  • Inclination: 0.882906609746°
  • Longitude of Ascending Node: 163.839939153°
  • Argument of Periapsis: 267.586861948°
  • Mean Anomaly: 260.937383131°

Physical Characteristics

  • Diameter: ~0.008 km
  • Magnitude: 28.1

Derived Characteristics

  • Orbit Period: 399 days (1.09 years)
  • Avg. Orbit Speed: 28.92 km/s
  • Aphelion Distance: 1.26 AU
  • Perihelion Distance: 0.86 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 2010 RF12 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.