Key Facts

  • Classified as a Amor-class Asteroid
  • Comparable in size to the U.S. Capitol building
  • Will pass within 6,258,991 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation


2019 KG3 is a very small asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified 2019 KG3 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.

2019 KG3 orbits the sun every 597 days (1.64 years), coming as close as 1.03 AU and reaching as far as 1.74 AU from the sun. Based on its brightness and the way it reflects light, 2019 KG3 is probably between 0.13 to 0.60 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to the U.S. Capitol building.

Close Approaches

2019 KG3's orbit is 0.04 AU from Earth's orbit at its closest point. This means that there is a wide berth between this asteroid and Earth at all times.

2019 KG3 has 1 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
June 11, 2019 6,258,991 6.753

Images and Observations

2019 KG3's orbit is determined by observations dating back to May 29, 2019. It was last officially observed on June 2, 2019. The IAU Minor Planet Center records 25 observations used to determine its orbit.

Accessibility and Exploration

2019 KG3 can be reached with a journey of 362 days. This trajectory would require a delta-v of 11.095 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 85 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2019 KG3.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2019 KG3:



   or view a random object

Orbital Elements

  • Epoch: 2458633.5 JD
  • Semi-major axis: 1.38805973492 AU
  • Eccentricity: 0.254580311257
  • Inclination: 10.087101864°
  • Longitude of Ascending Node: 73.8215143129°
  • Argument of Periapsis: 209.647487413°
  • Mean Anomaly: 338.918113644°

Physical Characteristics

  • Diameter: ~0.37 km
  • Magnitude: 25.681

Derived Characteristics

  • Orbit Period: 597 days (1.64 years)
  • Avg. Orbit Speed: 25.28 km/s
  • Aphelion Distance: 1.74 AU
  • Perihelion Distance: 1.03 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 2019 KG3 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.