Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 4,080,277 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 0.060 to 0.270 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 25 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Jan. 17, 2019 4,080,277 4.386
Oct. 22, 2019 24,975,619 3.635
July 1, 2020 4,033,581 3.381
Jan. 13, 2042 10,118,753 5.716
Nov. 12, 2042 22,231,150 3.480
May 10, 2043 15,400,532 2.998
Aug. 10, 2043 18,037,123 2.616
July 12, 2044 20,649,933 7.638
Jan. 11, 2066 16,595,311 6.955
Nov. 28, 2066 19,495,439 3.262
April 11, 2067 16,852,571 3.062
Sept. 3, 2067 21,664,027 3.052
July 9, 2068 13,179,717 6.272
Jan. 12, 2090 16,131,670 6.852
Nov. 26, 2090 19,848,569 3.311
April 14, 2091 16,782,464 3.076
Aug. 31, 2091 21,347,298 2.986
July 10, 2092 14,385,205 6.493
Jan. 14, 2114 11,891,999 6.026
Nov. 18, 2114 21,351,094 3.419
May 1, 2115 16,179,466 3.086
Aug. 22, 2115 19,666,707 2.792
July 12, 2116 17,482,552 7.059
Jan. 10, 2138 26,513,535 8.888
July 7, 2140 4,614,138 4.742

Images and Observations

2019 AC3's orbit is determined by observations dating back to Jan. 3, 2019. It was last officially observed on Oct. 29, 2019. The IAU Minor Planet Center records 48 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 4.84 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 712,964 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: ~0.165 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.

Size Rendering

The above comparison is an artistic rendering that uses available data on the diameter of 2019 AC3 to create an approximate landscape rendering. The approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.