375103 (2007 TD71)

Small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 375103 (2007 TD71)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 13,085,205 km of Earth in 2026
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

375103 (2007 TD71) is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2007 TD71 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2007 TD71 orbits the sun every 533 days (1.46 years), coming as close as 0.93 AU and reaching as far as 1.65 AU from the sun. Based on its brightness and the way it reflects light, 2007 TD71 is probably between 0.538 to 1.202 kilometers in diameter, making it larger than ~97% of asteroids but small compared to large asteroids, very roughly comparable in size to the Golden Gate Bridge.

Close Approaches

2007 TD71's orbit is 0.03 AU from Earth's orbit at its closest point. This means that there is a wide berth between this asteroid and Earth at all times.

2007 TD71 has 9 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 13, 2026 13,085,205 26.685
May 5, 2045 16,862,117 27.944
May 17, 2061 25,308,296 26.477
May 8, 2080 6,704,014 27.319
May 10, 2115 6,009,220 27.273
May 20, 2131 29,114,185 26.467
May 8, 2150 12,770,023 27.707
May 17, 2166 19,127,816 26.572
May 4, 2185 23,876,133 28.465

Images and Observations

2007 TD71's orbit is determined by observations dating back to Oct. 23, 2003. It was last officially observed on Nov. 20, 2019. The IAU Minor Planet Center records 142 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 TD71:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.286 AU
  • Eccentricity: 0.2797
  • Inclination: 49.75°
  • Longitude of Ascending Node: 49.58°
  • Argument of Periapsis: 220.74°
  • Mean Anomaly: 37.93°

Physical Characteristics

  • Diameter: ~0.694 km
  • Magnitude: 18.47

Derived Characteristics

  • Orbit Period: 533 days (1.46 years)
  • Avg. Orbit Speed: 26.25 km/s
  • Aphelion Distance: 1.65 AU
  • Perihelion Distance: 0.93 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 375103 (2007 TD71) 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 2007 TD71 to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.