Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 5,314,421 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2021 GN1 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2021 GN1 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.

2021 GN1 orbits the sun every 365 days (1.00 years), coming as close as 0.81 AU and reaching as far as 1.19 AU from the sun. Based on its brightness and the way it reflects light, 2021 GN1 is probably between 0.014 to 0.031 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2021 GN1's orbit is 0.03 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.

2021 GN1 has 12 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
April 3, 2019 5,314,421 14.631
April 2, 2020 4,791,931 14.498
April 2, 2021 4,878,175 14.380
April 2, 2022 5,531,387 14.277
April 2, 2023 6,791,998 14.152
April 1, 2024 8,664,178 14.020
April 1, 2025 11,080,772 13.896
April 1, 2026 13,954,465 13.768
April 2, 2027 17,098,636 13.672
April 1, 2028 20,458,927 13.602
April 1, 2029 24,000,332 13.552
April 2, 2030 27,679,222 13.553

Images and Observations

2021 GN1's orbit is determined by observations dating back to April 3, 2021. It was last officially observed on April 6, 2021. 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 2021 GN1:

References

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Orbital Elements

  • Epoch: 2459308.5 JD
  • Semi-major axis: 0.9988 AU
  • Eccentricity: 0.1893
  • Inclination: 26.9°
  • Longitude of Ascending Node: 14.12°
  • Argument of Periapsis: 68.64°
  • Mean Anomaly: 90.32°

Physical Characteristics

  • Diameter: ~0.018 km
  • Magnitude: 26.42

Derived Characteristics

  • Orbit Period: 365 days (1.00 years)
  • Avg. Orbit Speed: 29.77 km/s
  • Aphelion Distance: 1.19 AU
  • Perihelion Distance: 0.81 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2021 GN1 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.