523809 (2007 TV18)

Very small Apollo-class Asteroid

Near-Earth
Space Reference » Apollo-class Asteroids » 523809 (2007 TV18)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 20,694,358 km of Earth in 2025
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

523809 (2007 TV18) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2007 TV18 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.

2007 TV18 orbits the sun every 503 days (1.38 years), coming as close as 0.81 AU and reaching as far as 1.67 AU from the sun. Based on its brightness and the way it reflects light, 2007 TV18 is probably between 0.030 to 0.136 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2007 TV18'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.

2007 TV18 has 13 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 11, 2025 20,694,358 7.213
Aug. 18, 2047 23,922,243 7.578
April 13, 2054 7,910,581 11.756
Sept. 22, 2058 352,792 10.379
Oct. 1, 2065 22,057,085 14.600
April 12, 2075 19,006,088 13.993
April 22, 2082 2,883,560 9.710
June 20, 2089 29,355,364 8.863
Aug. 20, 2096 22,685,059 7.536
Sept. 29, 2103 14,341,113 13.075
April 21, 2113 1,189,940 10.352
April 29, 2120 11,402,717 8.048
Sept. 25, 2162 2,905,251 10.800

Images and Observations

2007 TV18's orbit is determined by observations dating back to Oct. 9, 2007. It was last officially observed on Oct. 15, 2018. The IAU Minor Planet Center records 107 observations used to determine its orbit.

Accessibility and Exploration

2007 TV18 can be reached with a journey of 450 days. This trajectory would require a delta-v of 10.959 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 578 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2007 TV18.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2007 TV18:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.238 AU
  • Eccentricity: 0.3482
  • Inclination: 0.93°
  • Longitude of Ascending Node: 353.24°
  • Argument of Periapsis: 289.34°
  • Mean Anomaly: 257.51°

Physical Characteristics

  • Diameter: ~0.083 km
  • Magnitude: 23.79

Derived Characteristics

  • Orbit Period: 503 days (1.38 years)
  • Avg. Orbit Speed: 26.78 km/s
  • Aphelion Distance: 1.67 AU
  • Perihelion Distance: 0.81 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 523809 (2007 TV18) 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 below comparison is an artistic rendering that uses available data on the diameter of 2007 TV18 to create an approximate landscape rendering with New York City in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.