Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 4,080,116 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2019 AC3 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2019 AC3 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.

2019 AC3 orbits the sun every 383 days (1.05 years), coming as close as 0.92 AU and reaching as far as 1.15 AU from the sun. Based on its brightness and the way it reflects light, 2019 AC3 is probably between 0.006 to 0.027 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2019 AC3's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is very close to Earth's orbit.

2019 AC3 has 26 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Jan. 17, 2019 4,080,116 4.385
Oct. 22, 2019 24,974,385 3.635
July 1, 2020 4,033,751 3.381
Jan. 13, 2042 10,168,783 5.726
Nov. 12, 2042 22,218,533 3.479
May 9, 2043 15,413,974 2.999
Aug. 10, 2043 18,060,234 2.618
July 12, 2044 20,625,387 7.633
Jan. 11, 2066 16,369,460 6.911
Nov. 27, 2066 19,595,092 3.270
April 12, 2067 16,846,150 3.064
Sept. 3, 2067 21,583,897 3.040
July 9, 2068 13,374,944 6.307
Jan. 12, 2090 16,850,233 6.990
Nov. 28, 2090 19,534,817 3.283
April 12, 2091 16,814,935 3.072
Sept. 2, 2091 21,607,928 3.024
July 9, 2092 13,764,074 6.379
Jan. 14, 2114 9,964,238 5.654
Nov. 15, 2114 21,908,378 3.449
May 7, 2115 15,702,807 3.070
Aug. 16, 2115 18,770,344 2.679
July 13, 2116 18,748,344 7.295
Jan. 14, 2139 6,715,311 3.125
Oct. 11, 2139 24,671,067 3.532
July 3, 2140 2,075,336 3.685

Images and Observations

2019 AC3's orbit is determined by observations dating back to Jan. 3, 2019. It was last officially observed on July 25, 2020. The IAU Minor Planet Center records 65 observations used to determine its orbit.

Accessibility and Exploration

2019 AC3 can be reached with a journey of 370 days. This trajectory would require a delta-v of 4.844 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 712,697 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2019 AC3.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2019 AC3:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 1.033 AU
  • Eccentricity: 0.1104
  • Inclination: 4.41°
  • Longitude of Ascending Node: 282.26°
  • Argument of Periapsis: 271.91°
  • Mean Anomaly: 45.03°

Physical Characteristics

  • Diameter: ~0.017 km
  • Magnitude: 27.3

Derived Characteristics

  • Orbit Period: 383 days (1.05 years)
  • Avg. Orbit Speed: 29.34 km/s
  • Aphelion Distance: 1.15 AU
  • Perihelion Distance: 0.92 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2019 AC3 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.