Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 957,772 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2019 TK5 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2019 TK5 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.

2019 TK5 orbits the sun every 376 days (1.03 years), coming as close as 0.82 AU and reaching as far as 1.22 AU from the sun. Based on its brightness and the way it reflects light, 2019 TK5 is probably between 0.006 to 0.025 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2019 TK5's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.

2019 TK5 has 41 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Oct. 19, 2019 957,772 5.797
Sept. 7, 2020 24,328,650 4.246
Dec. 17, 2020 22,259,967 5.024
Feb. 6, 2022 24,690,904 5.654
June 24, 2022 28,349,579 4.799
April 24, 2023 9,958,223 3.654
May 2, 2024 18,644,939 9.237
Oct. 12, 2051 21,792,558 9.892
Oct. 20, 2052 6,921,402 4.227
Aug. 25, 2053 27,564,529 4.692
Jan. 1, 2054 24,201,364 5.565
Feb. 22, 2055 22,788,045 5.114
June 9, 2055 25,078,415 4.312
April 26, 2056 303,169 5.762
April 26, 2057 7,618,470 4.097
May 14, 2058 15,773,488 3.527
March 5, 2059 22,731,825 4.608
June 4, 2059 21,290,882 4.217
Feb. 15, 2060 26,083,644 5.601
June 19, 2060 24,630,805 4.664
Jan. 29, 2061 27,980,981 6.170
July 3, 2061 26,345,920 4.890
Jan. 15, 2062 28,723,757 6.401
July 17, 2062 26,718,098 4.942
Jan. 1, 2063 28,421,322 6.317
July 30, 2063 25,715,010 4.818
Dec. 17, 2063 27,099,017 5.928
Aug. 13, 2064 23,319,955 4.497
Nov. 30, 2064 24,588,921 5.209
Aug. 30, 2065 19,217,201 3.936
Nov. 11, 2065 20,447,149 4.036
Sept. 23, 2066 12,602,559 3.376
Sept. 30, 2067 4,662,415 4.721
Sept. 28, 2068 2,035,674 5.911
Sept. 26, 2069 13,260,940 8.187
Sept. 22, 2070 25,757,718 10.696
May 3, 2125 17,852,808 9.056
April 29, 2126 3,072,950 6.154
April 29, 2127 7,259,257 4.122
Sept. 30, 2135 3,095,219 6.106
Sept. 26, 2136 18,227,485 9.129

Images and Observations

2019 TK5's orbit is determined by observations dating back to Oct. 8, 2019. It was last officially observed on May 24, 2023. The IAU Minor Planet Center records 43 observations used to determine its orbit.

Accessibility and Exploration

2019 TK5 can be reached with a journey of 402 days. This trajectory would require a delta-v of 6.112 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 503,340 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2019 TK5.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2019 TK5:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.02 AU
  • Eccentricity: 0.2002
  • Inclination: 1.5°
  • Longitude of Ascending Node: 214.83°
  • Argument of Periapsis: 264.57°
  • Mean Anomaly: 210.4°

Physical Characteristics

  • Diameter: ~0.015 km
  • Magnitude: 27.46

Derived Characteristics

  • Orbit Period: 376 days (1.03 years)
  • Avg. Orbit Speed: 29.51 km/s
  • Aphelion Distance: 1.22 AU
  • Perihelion Distance: 0.82 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2019 TK5 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.