Key Facts

  • Categorized as a Amor-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 18,978,800 km of Earth in 2022
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2022 QZ21 is a very small asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified 2022 QZ21 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.

2022 QZ21 orbits the sun every 562 days (1.54 years), coming as close as 1.11 AU and reaching as far as 1.55 AU from the sun. Based on its brightness and the way it reflects light, 2022 QZ21 is probably between 0.034 to 0.076 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2022 QZ21's orbit is 0.13 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.

2022 QZ21 has 1 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Sept. 18, 2022 18,978,800 4.752

Images and Observations

2022 QZ21's orbit is determined by observations dating back to Aug. 29, 2022. It was last officially observed on Sept. 30, 2022. The IAU Minor Planet Center records 31 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 2022 QZ21:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.333 AU
  • Eccentricity: 0.1649
  • Inclination: 9.03°
  • Longitude of Ascending Node: 343.82°
  • Argument of Periapsis: 35.67°
  • Mean Anomaly: 212.73°

Physical Characteristics

  • Diameter: ~0.044 km
  • Magnitude: 24.46

Derived Characteristics

  • Orbit Period: 562 days (1.54 years)
  • Avg. Orbit Speed: 25.80 km/s
  • Aphelion Distance: 1.55 AU
  • Perihelion Distance: 1.11 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2022 QZ21 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 below comparison is an artistic rendering that uses available data on the diameter of 2022 QZ21 to create an approximate landscape rendering with New York City in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.