Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 476,993 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 655 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 476,993 5.459
Dec. 8, 2028 20,278,048 9.430

NASA Sentry has assessed impact risk for 60 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, 2063 2,099.34 ±4.55 0.18790 0.002651
Feb. 9, 2063 3,107.28 ±1.29 0.04146 0.002655
Feb. 9, 2088 2,991.72 ±2.88 0.00848 0.002643
Feb. 9, 2079 6,034.80 ±3.24 0.00110 0.002647
Feb. 8, 2070 4,815.00 ±3.52 0.00060 0.002642
Feb. 8, 2095 2,067.24 ±2.91 0.00035 0.002621
Feb. 8, 2075 1,149.18 ±3.53 0.00015 0.002647
Feb. 8, 2089 712.62 ±3.75 0.00014 0.002643
Feb. 7, 2065 2,901.84 ±2.90 0.00014 0.002648
Feb. 8, 2078 4,744.38 ±2.90 0.00014 0.002645
Feb. 9, 2096 1,399.56 ±4.30 0.00013 0.002627
Feb. 9, 2107 1,617.84 ±8.41 0.00011 0.002648
Feb. 8, 2082 4,564.62 ±4.47 0.00011 0.002648
Feb. 9, 2102 3,376.92 ±3.70 0.00010 0.002644
Feb. 8, 2088 500.76 ±3.64 0.00009 0.002646
Feb. 9, 2084 2,760.60 ±7.76 0.00009 0.002647
Feb. 8, 2095 5,206.62 ±8.70 0.00009 0.002644
Feb. 8, 2099 3,575.94 ±7.73 0.00009 0.002648
Feb. 8, 2070 2,946.78 ±1.57 0.00008 0.002651
Feb. 9, 2110 1,354.62 ±9.63 0.00008 0.002647
Feb. 8, 2095 2,125.02 ±2.01 0.00007 0.002647
Feb. 8, 2094 4,596.72 ±3.75 0.00007 0.002644
Feb. 8, 2086 4,012.50 ±7.29 0.00006 0.002648
Feb. 8, 2088 4,404.12 ±7.96 0.00005 0.002648
Feb. 9, 2118 160.50 ±10.12 0.00005 0.002647
Feb. 8, 2082 2,516.64 ±1.77 0.00005 0.002651
Feb. 10, 2112 885.96 ±8.75 0.00005 0.002649
Feb. 8, 2079 3,158.64 ±2.77 0.00005 0.00263
Feb. 9, 2107 4,827.84 ±7.29 0.00004 0.002646
Feb. 8, 2085 4,063.86 ±3.44 0.00004 0.002649
Feb. 9, 2084 2,561.58 ±2.70 0.00004 0.002623
Feb. 9, 2106 1,405.98 ±2.99 0.00004 0.002626
Feb. 9, 2084 1,662.78 ±1.66 0.00004 0.00265
Feb. 9, 2100 706.20 ±8.43 0.00004 0.002645
Feb. 9, 2110 3,967.56 ±2.12 0.00004 0.002647
Feb. 8, 2090 3,967.56 ±3.61 0.00003 0.002649
Feb. 10, 2103 3,633.72 ±3.51 0.00003 0.002627
Feb. 8, 2095 5,598.24 ±2.71 0.00003 0.002639
Feb. 9, 2105 975.84 ±3.53 0.00003 0.002625
Feb. 9, 2076 1,669.20 ±3.36 0.00003 0.002647
Feb. 9, 2102 308.16 ±3.06 0.00003 0.002627
Feb. 9, 2088 642.00 ±1.69 0.00003 0.002652
Feb. 8, 2095 2,991.72 ±3.12 0.00002 0.002621
Feb. 8, 2066 5,039.70 ±3.25 0.00002 0.002649
Feb. 10, 2112 2,240.58 ±1.87 0.00002 0.002651
Feb. 9, 2102 5,379.96 ±9.29 0.00002 0.002645
Feb. 9, 2107 1,662.78 ±3.01 0.00002 0.002624
Feb. 8, 2086 2,368.98 ±2.84 0.00002 0.002627
Feb. 10, 2112 5,026.86 ±3.99 0.00002 0.002627
Feb. 8, 2094 738.30 ±1.83 0.00002 0.002649
Feb. 9, 2106 6,253.08 ±12.73 0.00002 0.002646
Feb. 8, 2094 1,874.64 ±2.99 0.00001 0.002621
Feb. 10, 2108 5,803.68 ±8.67 0.00001 0.002645
Feb. 9, 2084 3,762.12 ±3.24 0.00001 0.002647
Feb. 8, 2094 5,052.54 ±3.69 0.00001 0.002644
Feb. 10, 2112 5,559.72 ±3.83 0.00001 0.002625
Feb. 8, 2093 1,348.20 ±2.73 0.00001 0.002627
Feb. 8, 2089 6,176.04 ±1.63 0.00000 0.002648
Feb. 9, 2107 821.76 ±2.60 0.00000 0.002628
Feb. 9, 2080 6,413.58 ±2.51 0.00000 0.002627

Images and Observations

2020 CK2's orbit is determined by observations dating back to Feb. 14, 2020. It was last officially observed on Feb. 19, 2020. The IAU Minor Planet Center records 24 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 10.206 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 89 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: 0.3414
  • Inclination: 2.07°
  • Longitude of Ascending Node: 140.34°
  • Argument of Periapsis: 339.55°
  • Mean Anomaly: 70.5°

Physical Characteristics

  • Diameter: ~0.067 km
  • Magnitude: 29.3

Derived Characteristics

  • Orbit Period: 655 days (1.79 years)
  • Avg. Orbit Speed: 24.50 km/s
  • Aphelion Distance: 1.98 AU
  • Perihelion Distance: 0.97 AU

Size Comparison

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.