2011 YD29

Very small Aten-class Asteroid

Near-Earth
Space Reference » Aten-class Asteroids » 2011 YD29

Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 12,803,858 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2011 YD29 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2011 YD29 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.

2011 YD29 orbits the sun every 245 days (0.67 years), coming as close as 0.53 AU and reaching as far as 1.00 AU from the sun. Based on its brightness and the way it reflects light, 2011 YD29 is probably between 0.015 to 0.033 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2011 YD29's orbit is 0.01 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.

2011 YD29 has 24 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Dec. 17, 2019 12,803,858 9.040
Dec. 15, 2021 20,424,510 10.804
Dec. 16, 2023 29,147,719 12.822
Jan. 30, 2067 29,088,205 12.474
Jan. 29, 2069 21,057,222 10.537
Jan. 28, 2071 14,232,418 8.863
Jan. 7, 2079 3,476,319 6.497
Jan. 3, 2081 2,848,226 6.507
Jan. 2, 2083 2,580,354 6.519
Jan. 1, 2085 2,567,678 6.534
Jan. 4, 2087 2,840,056 6.517
Jan. 6, 2089 3,405,583 6.507
Jan. 12, 2091 4,326,423 6.588
Jan. 23, 2095 8,722,971 7.598
Jan. 27, 2097 13,698,335 8.866
Jan. 28, 2099 20,614,194 10.582
Jan. 29, 2101 28,766,248 12.564
Dec. 15, 2145 22,150,207 11.357
Dec. 16, 2147 14,927,880 9.672
Dec. 24, 2153 2,788,131 6.974
Dec. 25, 2155 2,616,352 6.947
Dec. 16, 2161 13,074,682 9.215
Dec. 16, 2163 20,281,419 10.845
Dec. 16, 2165 28,441,939 12.717

Images and Observations

2011 YD29's orbit is determined by observations dating back to Dec. 29, 2011. It was last officially observed on Jan. 1, 2012. The IAU Minor Planet Center records 25 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 2011 YD29:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.7658 AU
  • Eccentricity: 0.3089
  • Inclination: 6.97°
  • Longitude of Ascending Node: 281.58°
  • Argument of Periapsis: 5.51°
  • Mean Anomaly: 342.59°

Physical Characteristics

  • Diameter: ~0.019 km
  • Magnitude: 26.3

Derived Characteristics

  • Orbit Period: 245 days (0.67 years)
  • Avg. Orbit Speed: 34.00 km/s
  • Aphelion Distance: 1.00 AU
  • Perihelion Distance: 0.53 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 2011 YD29 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.