Key Facts

  • Classified as a Apollo-class Asteroid
  • Comparable in size to a school bus
  • Will pass within 74,116,303 km of Earth in 2021
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Asteroid (PHA)
  • 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 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 0.04 to 0.19 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus.

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 25 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Aug. 13, 2021 74,116,303 19.715
Sept. 23, 2022 10,249,191 3.314
May 12, 2023 35,601,756 5.306
March 1, 2024 27,564,983 10.635
Aug. 21, 2033 50,220,289 15.012
July 16, 2034 29,428,534 4.368
Dec. 2, 2034 18,716,377 4.775
April 10, 2035 28,272,612 4.296
March 9, 2036 54,006,368 15.958
Aug. 29, 2045 25,022,013 10.043
June 17, 2046 35,886,429 5.287
Feb. 9, 2047 8,653,346 3.471
Aug. 31, 2057 17,210,255 8.499
June 10, 2058 36,292,698 5.372
Feb. 17, 2059 3,536,625 4.441
Aug. 17, 2069 56,592,526 16.258
Aug. 5, 2070 22,609,304 3.328
Nov. 1, 2070 17,448,123 4.364
April 30, 2071 32,843,056 5.005
March 3, 2072 33,188,740 11.777
Aug. 30, 2082 15,852,001 8.222
June 11, 2083 35,533,068 5.321
Feb. 13, 2084 7,701,244 3.616
March 15, 2085 71,512,285 19.465
Sept. 6, 2095 24,608 7.648

NASA Sentry has assessed impact risk for 63 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 ±3.20 4.92100 0.009005
Sept. 5, 2095 2,747.76 ±4.61 0.10470 0.009011
Sept. 4, 2096 2,568.00 ±1.72 0.00783 0.009017
Sept. 5, 2100 1,913.16 ±9.33 0.00142 0.009012
Sept. 6, 2106 3,210.00 ±14.68 0.00111 0.009014
Sept. 6, 2113 2,324.04 ±1.37 0.00094 0.009015
Sept. 5, 2112 1,014.36 ±1.37 0.00086 0.009008
March 4, 2117 2,266.26 ±10.60 0.00081 0.009009
Sept. 5, 2104 3,447.54 ±99.36 0.00076 0.009001
Sept. 5, 2099 2,420.34 ±7.72 0.00075 0.00902
Sept. 6, 2111 1,720.56 ±1.21 0.00061 0.009004
Sept. 6, 2111 3,832.74 ±10.22 0.00061 0.009008
Sept. 5, 2104 5,521.20 ±29.57 0.00057 0.009
Sept. 6, 2114 5,611.08 ±1.58 0.00056 0.008996
Sept. 5, 2104 4,185.84 ±6.31 0.00043 0.00901
Sept. 6, 2106 3,531.00 ±14.14 0.00040 0.009017
Sept. 5, 2098 4,693.02 ±7.05 0.00039 0.009008
Sept. 5, 2098 3,498.90 ±0.00 0.00035 0.009005
Sept. 5, 2109 2,619.36 ±12.61 0.00029 0.009006
Sept. 6, 2101 5,129.58 ±0.00 0.00027 0.008999
Sept. 5, 2100 3,139.38 ±8.92 0.00027 0.009009
Sept. 5, 2099 3,922.62 ±8.92 0.00026 0.009025
Sept. 5, 2108 5,097.48 ±6.31 0.00026 0.009008
Sept. 5, 2112 4,301.40 ±0.00 0.00025 0.009006
Sept. 6, 2102 2,972.46 ±20.43 0.00023 0.00901
Sept. 5, 2100 2,863.32 ±10.57 0.00023 0.009017
Sept. 5, 2108 1,572.90 ±0.00 0.00020 0.008997
Sept. 6, 2102 3,922.62 ±0.00 0.00018 0.009025
Sept. 6, 2111 5,893.56 ±0.00 0.00017 0.008993
Sept. 6, 2103 3,646.56 ±17.83 0.00016 0.008997
Sept. 6, 2111 3,929.04 ±10.46 0.00016 0.009007
Sept. 6, 2107 4,269.30 ±0.00 0.00014 0.009008
Sept. 5, 2104 3,518.16 ±17.83 0.00014 0.009009
Sept. 5, 2098 5,681.70 ±0.00 0.00011 0.009001
Sept. 6, 2107 3,871.26 ±0.00 0.00009 0.009014
Sept. 6, 2109 3,383.34 ±15.44 0.00009 0.009002
Sept. 6, 2116 5,944.92 ±8.92 0.00009 0.009002
Sept. 6, 2114 4,802.16 ±0.00 0.00008 0.009005
Sept. 6, 2114 3,081.60 ±5.46 0.00007 0.009004
Sept. 5, 2099 3,717.18 ±9.19 0.00005 0.00902
Sept. 5, 2110 6,285.18 ±1.47 0.00005 0.009008
Sept. 5, 2104 5,970.60 ±7.72 0.00004 0.009015
Sept. 6, 2109 4,776.48 ±8.92 0.00003 0.009002
Sept. 4, 2096 2,465.28 ±3.47 0.00002 0.009026
Sept. 5, 2098 3,864.84 ±8.92 0.00002 0.009008
Sept. 6, 2102 3,165.06 ±0.00 0.00001 0.009015
Sept. 5, 2112 5,681.70 ±0.00 0.00001 0.009017
Sept. 6, 2106 3,396.18 ±12.61 0.00001 0.009008
Sept. 5, 2104 4,160.16 ±46.55 0.00001 0.009003
Sept. 6, 2105 3,620.88 ±0.00 0.00001 0.009015
Sept. 6, 2108 1,463.76 ±17.83 0.00001 0.008998
Sept. 6, 2114 5,925.66 ±25.22 0.00000 0.009004
Sept. 6, 2101 3,409.02 ±17.83 0.00000 0.009009
Sept. 6, 2103 4,808.58 ±0.00 0.00000 0.009011
Sept. 5, 2109 4,988.34 ±0.00 0.00000 0.009007
Sept. 5, 2104 4,230.78 ±0.00 0.00000 0.009014
Sept. 5, 2112 5,277.24 ±0.00 0.00000 0.009015
Sept. 6, 2111 5,161.68 ±25.22 0.00000 0.009004
Sept. 6, 2109 4,564.62 ±0.00 0.00000 0.009009
March 4, 2117 2,497.38 ±16.15 0.00000 0.009021
Sept. 6, 2113 2,195.64 ±2.09 0.00000 0.009028
Sept. 6, 2114 5,290.08 ±0.00 0.00000 0.009011
Sept. 5, 2112 873.12 ±1.67 0.00000 0.009023

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

2010 RF12 can be reached with a journey of 450 days. This trajectory would require a delta-v of 5.967 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 486,099 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2010 RF12.

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: 1.06048295239 AU
  • Eccentricity: 0.188271559832
  • Inclination: 0.882790220373°
  • Longitude of Ascending Node: 163.839721177°
  • Argument of Periapsis: 267.586327595°
  • Mean Anomaly: 260.932444769°

Physical Characteristics

  • Diameter: ~0.12 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.