Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 1,016,103 km of Earth in 2022
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2022 OB5 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2022 OB5 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 OB5 orbits the sun every 374 days (1.02 years), coming as close as 0.95 AU and reaching as far as 1.08 AU from the sun. Based on its brightness and the way it reflects light, 2022 OB5 is probably between 0.003 to 0.013 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2022 OB5's orbit is 0.01 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.

2022 OB5 has 6 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Aug. 5, 2022 1,016,103 2.122
June 19, 2023 8,257,533 1.404
Oct. 6, 2023 7,886,159 1.366
April 9, 2024 10,200,268 1.571
Jan. 18, 2025 3,396,025 1.412
Jan. 14, 2026 641,234 2.192

NASA Sentry has assessed impact risk for 37 very close approach scenarios. Here are the top scenarios ordered by probability of impact:

Date Probability of Impact (%) Impact Energy (Mt)
Jan. 10, 2109 0.00256 0.003726
Jan. 10, 2109 0.00244 0.003727
Jan. 8, 2086 0.00057 0.00372
Jan. 8, 2087 0.00044 0.003732
Jan. 9, 2114 0.00036 0.00373
Jan. 10, 2111 0.00033 0.003731
Jan. 8, 2112 0.00031 0.003727
Jan. 10, 2110 0.00026 0.003725
Jan. 7, 2112 0.00025 0.003728
Jan. 9, 2109 0.00024 0.003726
Jan. 12, 2112 0.00024 0.00373
Jan. 8, 2111 0.00023 0.003726
Jan. 8, 2109 0.00020 0.003722
Jan. 11, 2111 0.00018 0.00373
Jan. 9, 2109 0.00015 0.003727
Jan. 8, 2088 0.00014 0.003729
Jan. 10, 2113 0.00014 0.00373
Jan. 9, 2113 0.00014 0.003725
Jan. 7, 2087 0.00014 0.003721
Jan. 9, 2114 0.00012 0.003732
Jan. 7, 2089 0.00011 0.003727
Jan. 10, 2113 0.00010 0.00373
Jan. 11, 2114 0.00008 0.003729
Jan. 9, 2108 0.00007 0.003722
Jan. 9, 2108 0.00004 0.003722
Jan. 10, 2107 0.00004 0.003726
Jan. 7, 2114 0.00003 0.00373
Jan. 9, 2116 0.00002 0.003733
Jan. 6, 2120 0.00002 0.003728
Jan. 10, 2106 0.00002 0.003723
Jan. 9, 2106 0.00002 0.003723
Jan. 5, 2113 0.00001 0.003725
Jan. 5, 2116 0.00001 0.003725
Jan. 7, 2112 0.00001 0.003722
Jan. 6, 2114 0.00001 0.00373
Jan. 9, 2115 0.00001 0.003734
Jan. 6, 2121 0.00001 0.003725

Images and Observations

2022 OB5's orbit is determined by observations dating back to July 30, 2022. It was last officially observed on Aug. 6, 2022. The IAU Minor Planet Center records 37 observations used to determine its orbit.

Accessibility and Exploration

2022 OB5 can be reached with a journey of 362 days. This trajectory would require a delta-v of 3.517 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 3,481,927 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2022 OB5.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2022 OB5:

References

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Orbital Elements

  • Epoch: 2459800.5 JD
  • Semi-major axis: 1.015 AU
  • Eccentricity: 0.0633
  • Inclination: 2.33°
  • Longitude of Ascending Node: 307.56°
  • Argument of Periapsis: 101.82°
  • Mean Anomaly: 274.26°

Physical Characteristics

  • Diameter: ~0.008 km
  • Magnitude: 28.88

Derived Characteristics

  • Orbit Period: 374 days (1.02 years)
  • Avg. Orbit Speed: 29.52 km/s
  • Aphelion Distance: 1.08 AU
  • Perihelion Distance: 0.95 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2022 OB5 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.