2007 TD

Very small Aten-class Asteroid

Near-Earth
Space Reference » Aten-class Asteroids » 2007 TD

Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 21,730,322 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2007 TD is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2007 TD 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 TD orbits the sun every 209 days (0.57 years), coming as close as 0.32 AU and reaching as far as 1.06 AU from the sun. Based on its brightness and the way it reflects light, 2007 TD is probably between 0.035 to 0.078 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2007 TD'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.

2007 TD has 22 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Sept. 21, 2019 21,730,322 16.545
Nov. 2, 2026 23,542,896 16.649
Nov. 3, 2030 12,681,346 13.980
Nov. 1, 2034 5,457,405 11.941
Oct. 26, 2038 6,374,421 10.722
Oct. 17, 2042 9,146,050 10.245
Oct. 7, 2046 8,748,260 10.264
Sept. 28, 2050 5,056,120 10.739
Sept. 23, 2054 958,274 11.805
Sept. 20, 2058 15,215,112 15.038
Nov. 3, 2065 20,686,920 15.916
Nov. 2, 2069 6,714,037 12.304
Oct. 23, 2073 7,878,898 10.442
Oct. 7, 2077 8,950,716 10.241
Sept. 24, 2081 1,324,713 11.432
Sept. 21, 2085 7,072,619 13.169
Sept. 20, 2089 18,340,537 15.759
Nov. 2, 2096 25,283,997 17.025
Nov. 4, 2100 13,282,871 14.092
Nov. 1, 2104 5,638,613 11.795
Sept. 23, 2124 2,833,685 12.241
Sept. 24, 2171 1,668,530 12.022

Images and Observations

2007 TD's orbit is determined by observations dating back to Oct. 2, 2007. It was last officially observed on Oct. 9, 2007. The IAU Minor Planet Center records 31 observations used to determine its orbit.

Accessibility and Exploration

This asteroid is not considered a viable target for human exploration by the NHATS study.

Similar Objects

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

References

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Orbital Elements

  • Epoch: 2454378.5 JD
  • Semi-major axis: 0.6893 AU
  • Eccentricity: 0.5355
  • Inclination: 3.49°
  • Longitude of Ascending Node: 186.02°
  • Argument of Periapsis: 12.13°
  • Mean Anomaly: 153.43°

Physical Characteristics

  • Diameter: ~0.045 km
  • Magnitude: 24.4

Derived Characteristics

  • Orbit Period: 209 days (0.57 years)
  • Avg. Orbit Speed: 35.88 km/s
  • Aphelion Distance: 1.06 AU
  • Perihelion Distance: 0.32 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 2007 TD 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 TD 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.