Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 476,484 km of Earth in 2020
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2020 CK2 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2020 CK2 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.

2020 CK2 orbits the sun every 654 days (1.79 years), coming as close as 0.97 AU and reaching as far as 1.98 AU from the sun. Based on its brightness and the way it reflects light, 2020 CK2 is probably between 0.024 to 0.110 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2020 CK2'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.

2020 CK2 has 2 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Feb. 11, 2020 476,484 5.454
Dec. 5, 2028 26,977,792 10.857

NASA Sentry has assessed impact risk for 44 very close approach scenarios. Here are the top scenarios ordered by probability of impact:

Date Distance from Earth (km) Distance Error (km) Probability of Impact (%) Impact Energy (Mt)
Feb. 9, 2096 1,386.72 ±1.29 0.00078 0.002646
Feb. 8, 2095 2,073.66 ±1.01 0.00071 0.00264
Feb. 8, 2079 3,152.22 ±0.97 0.00039 0.002649
Feb. 9, 2106 1,399.56 ±1.03 0.00031 0.002645
Feb. 9, 2102 314.58 ±1.02 0.00022 0.002646
Feb. 10, 2103 3,640.14 ±1.13 0.00020 0.002646
Feb. 9, 2105 988.68 ±1.15 0.00019 0.002644
Feb. 9, 2084 2,555.16 ±0.96 0.00015 0.002641
Feb. 8, 2086 2,362.56 ±0.98 0.00015 0.002646
Feb. 8, 2093 5,874.30 ±0.98 0.00014 0.002644
Feb. 10, 2112 5,020.44 ±1.22 0.00014 0.002646
Feb. 8, 2097 1,977.36 ±1.25 0.00012 0.002644
Feb. 9, 2091 1,142.76 ±1.16 0.00011 0.002648
Feb. 9, 2092 6,381.48 ±1.11 0.00011 0.002648
Feb. 8, 2093 372.36 ±0.97 0.00010 0.00265
Feb. 8, 2098 1,431.66 ±1.16 0.00009 0.00265
Feb. 8, 2101 3,665.82 ±0.90 0.00009 0.002644
Feb. 9, 2100 1,014.36 ±1.01 0.00009 0.002644
Feb. 10, 2112 5,546.88 ±1.19 0.00007 0.002644
Feb. 9, 2114 5,213.04 ±1.18 0.00007 0.002644
Feb. 8, 2069 4,339.92 ±1.15 0.00007 0.002649
Feb. 9, 2107 1,656.36 ±1.01 0.00007 0.002642
Feb. 8, 2097 449.40 ±1.01 0.00007 0.002646
Feb. 8, 2095 2,985.30 ±1.04 0.00006 0.00264
Feb. 8, 2094 1,874.64 ±0.99 0.00006 0.00264
Feb. 8, 2087 1,091.40 ±0.78 0.00005 0.002643
Feb. 8, 2073 3,845.58 ±0.88 0.00004 0.002642
Feb. 9, 2114 956.58 ±1.19 0.00004 0.002644
Feb. 9, 2113 1,913.16 ±1.30 0.00004 0.002641
Feb. 8, 2093 1,341.78 ±0.97 0.00004 0.002645
Feb. 9, 2103 1,251.90 ±1.19 0.00004 0.002645
Feb. 9, 2112 3,832.74 ±0.93 0.00003 0.002646
Feb. 8, 2085 3,511.74 ±0.88 0.00003 0.002646
Feb. 8, 2057 4,076.70 ±0.23 0.00002 0.002643
Feb. 9, 2118 5,322.18 ±0.95 0.00002 0.002641
Feb. 8, 2089 6,336.54 ±1.18 0.00002 0.00264
Feb. 8, 2082 5,373.54 ±1.07 0.00002 0.002647
Feb. 8, 2057 680.52 ±1.70 0.00002 0.002643
Feb. 8, 2079 3,229.26 ±1.03 0.00002 0.002646
Feb. 9, 2103 3,107.28 ±1.26 0.00001 0.002645
Feb. 8, 2086 5,457.00 ±0.81 0.00001 0.002641
Feb. 8, 2100 57.78 ±6.93 0.00001 0.00264
Feb. 8, 2076 6,304.44 ±0.84 0.00000 0.002642
Feb. 9, 2080 6,413.58 ±0.89 0.00000 0.002646

Images and Observations

2020 CK2's orbit is determined by observations dating back to Feb. 14, 2020. It was last officially observed on March 5, 2020. The IAU Minor Planet Center records 30 observations used to determine its orbit.

Accessibility and Exploration

2020 CK2 can be reached with a journey of 370 days. This trajectory would require a delta-v of 10.197 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 2020 CK2.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2020 CK2:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 1.475 AU
  • Eccentricity: 0.341
  • Inclination: 2.07°
  • Longitude of Ascending Node: 140.34°
  • Argument of Periapsis: 339.55°
  • Mean Anomaly: 70.56°

Physical Characteristics

  • Diameter: ~0.067 km
  • Magnitude: 29.3

Derived Characteristics

  • Orbit Period: 654 days (1.79 years)
  • Avg. Orbit Speed: 24.54 km/s
  • Aphelion Distance: 1.98 AU
  • Perihelion Distance: 0.97 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2020 CK2 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 2020 CK2 to create an approximate landscape rendering. The approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.