Key Facts

Overview

2015 ME131 is a very small asteroid with an orbit that is entirely confined within Earth's orbit. NASA JPL has classified 2015 ME131 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.

2015 ME131 orbits the sun every 264 days (0.72 years), coming as close as 0.64 AU and reaching as far as 0.97 AU from the sun. Based on its brightness and the way it reflects light, 2015 ME131 is probably between 0.335 to 0.748 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to the U.S. Capitol building.

Close Approaches

2015 ME131's orbit is 0.05 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.

Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.

NASA Sentry has assessed impact risk for 98 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)
Aug. 18, 2020 215,442.36 ±4,011,793.80 0.00000 10660.0
Aug. 18, 2035 187,489.68 ±4,177,815.00 0.00000 10270.0
Aug. 18, 2021 136,206.72 ±4,030,797.00 0.00000 10560.0
Aug. 18, 2022 65,368.44 ±4,035,612.00 0.00000 10510.0
Aug. 18, 2023 16,756.20 ±4,052,496.60 0.00000 10460.0
Aug. 18, 2024 5,899.98 ±4,068,418.20 0.00000 10420.0
Aug. 18, 2025 32,446.68 ±4,081,643.40 0.00000 10400.0
Aug. 18, 2034 185,473.80 ±4,162,792.20 0.00000 10280.0
Aug. 18, 2035 187,419.06 ±4,182,052.20 0.00000 10280.0
Aug. 18, 2026 56,598.72 ±4,100,646.60 0.00000 10370.0
Feb. 14, 2029 1,112,053.14 ±5,869,420.80 0.00000 10900.0
Aug. 18, 2027 73,451.22 ±4,108,735.80 0.00000 10350.0
Aug. 18, 2033 169,154.16 ±4,148,604.00 0.00000 10290.0
Aug. 18, 2056 402,694.50 ±3,764,688.00 0.00000 10680.0
Aug. 18, 2028 96,165.18 ±4,110,597.60 0.00000 10340.0
Aug. 17, 2083 1,071,767.64 ±3,874,983.60 0.00000 9240.0
Aug. 17, 2032 154,876.08 ±4,143,468.00 0.00000 10290.0
Aug. 18, 2029 110,218.56 ±4,117,659.60 0.00000 10320.0
Aug. 18, 2030 131,545.80 ±4,113,550.80 0.00000 10310.0
Aug. 18, 2031 150,587.52 ±4,127,418.00 0.00000 10310.0
Aug. 17, 2051 1,217,219.16 ±4,138,524.60 0.00000 9027.0
Aug. 19, 2069 888,521.58 ±4,323,356.40 0.00000 11420.0
Feb. 14, 2026 458,670.48 ±5,596,506.60 0.00000 10940.0
Aug. 19, 2070 859,522.44 ±3,414,284.40 0.00000 11370.0
Aug. 17, 2034 1,123,910.88 ±4,016,737.20 0.00000 9157.0
Aug. 19, 2061 658,287.54 ±5,322,308.40 0.00000 11120.0
Aug. 19, 2086 923,311.56 ±3,472,385.40 0.00000 11430.0
Aug. 17, 2035 1,074,887.76 ±3,797,751.00 0.00000 9198.0
Aug. 17, 2082 1,088,928.30 ±3,895,014.00 0.00000 9213.0
Aug. 16, 2036 1,039,231.08 ±3,758,139.60 0.00000 9253.0
Feb. 14, 2026 573,068.46 ±16,140,522.00 0.00000 10950.0
Feb. 15, 2084 1,071,780.48 ±763,851.60 0.00000 11170.0
Aug. 20, 2030 1,192,611.30 ±3,820,156.80 0.00000 11810.0
Aug. 19, 2041 533,591.88 ±1,886,902.20 0.00000 11060.0
Aug. 17, 2061 1,026,012.30 ±3,888,979.20 0.00000 9266.0
Feb. 14, 2023 482,655.60 ±12,933,732.00 0.00000 11060.0
Aug. 18, 2073 145,522.14 ±2,779,346.40 0.00000 10540.0
Aug. 17, 2038 986,041.38 ±4,039,528.20 0.00000 9326.0
Aug. 17, 2076 848,236.08 ±4,194,892.20 0.00000 9475.0
Aug. 19, 2080 970,453.62 ±3,989,195.40 0.00000 11510.0
Aug. 18, 2056 358,268.10 ±10,065,276.00 0.00000 10690.0
Aug. 17, 2059 1,069,578.42 ±3,945,796.20 0.00000 9222.0
Aug. 17, 2040 936,999.00 ±4,299,345.60 0.00000 9388.0
Feb. 15, 2024 65,548.20 ±12,398,946.00 0.00000 11030.0
Aug. 19, 2036 746,703.78 ±4,052,560.80 0.00000 11310.0
Aug. 17, 2057 1,116,553.56 ±3,993,561.00 0.00000 9188.0
Aug. 17, 2041 903,082.14 ±4,267,823.40 0.00000 9419.0
Aug. 17, 2042 871,739.70 ±4,304,353.20 0.00000 9443.0
Aug. 19, 2037 726,448.68 ±4,138,203.60 0.00000 11240.0
Aug. 16, 2053 1,183,379.34 ±3,896,875.80 0.00000 9088.0
Aug. 17, 2043 836,288.46 ±4,313,469.60 0.00000 9464.0
Aug. 17, 2085 1,047,763.26 ±3,637,572.00 0.00000 9262.0
Aug. 19, 2038 700,531.14 ±4,167,928.20 0.00000 11180.0
Aug. 17, 2055 1,148,749.86 ±3,966,340.20 0.00000 9143.0
Aug. 17, 2046 768,884.88 ±3,915,686.40 0.00000 9528.0
Aug. 19, 2039 679,711.08 ±4,393,655.40 0.00000 11140.0
Aug. 17, 2047 755,910.06 ±3,707,357.40 0.00000 9548.0
Aug. 19, 2070 865,679.22 ±3,155,751.00 0.00000 11360.0
Aug. 18, 2048 327,259.50 ±6,019,969.80 0.00000 10870.0
Aug. 17, 2048 743,981.70 ±3,561,174.00 0.00000 9564.0
Aug. 18, 2045 518,915.76 ±5,009,012.40 0.00000 10930.0
Aug. 17, 2076 847,863.72 ±4,403,670.60 0.00000 9474.0
Aug. 18, 2066 120,747.36 ±4,430,698.80 0.00000 10590.0
Aug. 17, 2049 734,993.70 ±3,558,156.60 0.00000 9581.0
Aug. 19, 2052 912,455.34 ±3,943,228.20 0.00000 11390.0
Aug. 20, 2043 1,195,596.60 ±3,812,452.80 0.00000 11840.0
Aug. 19, 2086 940,138.38 ±3,643,414.20 0.00000 11440.0
Aug. 18, 2040 707,580.30 ±4,483,792.20 0.00000 11070.0
Aug. 19, 2054 761,161.62 ±3,671,148.60 0.00000 11320.0
Aug. 17, 2050 739,404.24 ±3,735,605.40 0.00000 9601.0
Aug. 17, 2072 876,856.44 ±4,069,766.40 0.00000 9435.0
Aug. 18, 2051 726,878.82 ±3,981,170.40 0.00000 9609.0
Aug. 19, 2063 662,004.72 ±2,689,980.00 0.00000 11060.0
Aug. 18, 2055 662,884.26 ±4,436,990.40 0.00000 9664.0
Aug. 19, 2044 1,203,904.08 ±3,947,337.00 0.00000 11770.0
Aug. 17, 2056 643,174.86 ±4,378,311.60 0.00000 9673.0
Aug. 18, 2081 201,510.96 ±3,831,584.40 0.00000 10820.0
Aug. 17, 2058 629,224.20 ±3,926,086.80 0.00000 9698.0
Aug. 18, 2059 616,422.72 ±3,670,956.00 0.00000 9698.0
Aug. 17, 2074 864,812.52 ±4,068,289.80 0.00000 9460.0
Aug. 19, 2071 510,698.16 ±5,441,014.20 0.00000 10980.0
Aug. 17, 2061 607,428.30 ±3,462,370.20 0.00000 9724.0
Aug. 17, 2062 606,041.58 ±3,590,770.20 0.00000 9729.0
Aug. 19, 2046 1,069,976.46 ±3,237,349.20 0.00000 11650.0
Aug. 18, 2063 605,727.00 ±3,848,597.40 0.00000 9742.0
Aug. 18, 2087 744,925.44 ±3,682,833.00 0.00000 9572.0
Aug. 17, 2064 604,988.70 ±4,165,809.60 0.00000 9747.0
Aug. 18, 2066 604,918.08 ±4,540,159.80 0.00000 9764.0
Aug. 18, 2067 595,666.86 ±4,577,203.20 0.00000 9768.0
Aug. 17, 2068 582,005.10 ±4,457,534.40 0.00000 9775.0
Aug. 19, 2055 166,958.52 ±4,710,931.80 0.00000 10780.0
Aug. 17, 2069 581,985.84 ±4,185,198.00 0.00000 9786.0
Aug. 18, 2079 515,487.48 ±4,488,157.80 0.00000 9833.0
Aug. 17, 2081 489,011.40 ±3,936,487.20 0.00000 9837.0
Aug. 19, 2033 957,299.04 ±4,195,020.60 0.00000 11470.0
Aug. 17, 2076 521,676.36 ±4,073,361.60 0.00000 9817.0
Aug. 17, 2073 517,516.20 ±3,410,304.00 0.00000 9799.0
Aug. 17, 2089 480,755.28 ±4,368,103.80 0.00000 9866.0

Images and Observations

2015 ME131's orbit is determined by observations dating back to June 23, 2015. It was last officially observed on June 25, 2015. The IAU Minor Planet Center records 6 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 2015 ME131:

References

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Orbital Elements

  • Epoch: 2457197.5 JD
  • Semi-major axis: 0.806117947255 AU
  • Eccentricity: 0.204224857663
  • Inclination: 30.2367437174°
  • Longitude of Ascending Node: 315.351876565°
  • Argument of Periapsis: 162.273930863°
  • Mean Anomaly: 192.593418429°

Physical Characteristics

  • Diameter: ~0.432 km
  • Magnitude: 19.5

Derived Characteristics

  • Orbit Period: 264 days (0.72 years)
  • Avg. Orbit Speed: 33.17 km/s
  • Aphelion Distance: 0.97 AU
  • Perihelion Distance: 0.64 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 2015 ME131 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.