2001 TD

Very small Aten-class Asteroid

Near-Earth
Space Reference » Aten-class Asteroids » 2001 TD

Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 13,073,355 km of Earth in 2028
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2001 TD is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2001 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.

2001 TD orbits the sun every 340 days (0.93 years), coming as close as 0.80 AU and reaching as far as 1.11 AU from the sun. Based on its brightness and the way it reflects light, 2001 TD is probably between 0.017 to 0.074 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2001 TD'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.

2001 TD has 29 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Oct. 5, 2028 13,073,355 9.085
Jan. 3, 2030 29,709,020 4.163
April 1, 2030 22,553,560 6.398
Oct. 5, 2042 2,106,124 6.673
March 3, 2044 14,851,259 6.954
Oct. 11, 2055 14,055,288 5.353
Feb. 20, 2057 20,735,428 9.158
Oct. 9, 2067 28,463,453 11.919
Nov. 29, 2068 28,725,096 5.079
April 13, 2069 27,214,859 6.814
Oct. 6, 2080 15,466,280 9.514
March 27, 2082 21,232,266 6.347
Oct. 5, 2093 11,876,087 8.884
March 23, 2095 19,839,016 6.302
Oct. 7, 2106 16,668,489 9.731
March 30, 2108 22,175,981 6.406
Oct. 9, 2119 21,843,006 10.688
April 10, 2121 25,407,737 6.631
Nov. 2, 2133 23,445,794 5.252
Feb. 19, 2135 25,626,786 10.404
Oct. 11, 2146 13,565,592 5.393
Feb. 24, 2148 17,887,049 8.505
Oct. 22, 2159 19,573,138 5.191
Feb. 19, 2161 23,322,386 9.890
Feb. 17, 2174 27,996,286 10.943
April 23, 2186 29,765,925 7.001
Oct. 9, 2197 25,408,180 11.346
Dec. 8, 2198 29,413,093 4.911
April 12, 2199 26,161,601 6.699

Images and Observations

2001 TD's orbit is determined by observations dating back to Oct. 8, 2001. It was last officially observed on Oct. 16, 2001. The IAU Minor Planet Center records 31 observations used to determine its orbit.

Accessibility and Exploration

2001 TD can be reached with a journey of 362 days. This trajectory would require a delta-v of 7.944 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 52,628 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2001 TD.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2001 TD:

References

Search

   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.9537 AU
  • Eccentricity: 0.1662
  • Inclination: 9.01°
  • Longitude of Ascending Node: 13.03°
  • Argument of Periapsis: 241.56°
  • Mean Anomaly: 297.3°

Physical Characteristics

  • Diameter: ~0.046 km
  • Magnitude: 25.1

Derived Characteristics

  • Orbit Period: 340 days (0.93 years)
  • Avg. Orbit Speed: 30.52 km/s
  • Aphelion Distance: 1.11 AU
  • Perihelion Distance: 0.80 AU

Map Comparison

Click to load map

Orbit Simulation

⧉

Sky Map

The position of 2001 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 2001 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.