Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a basketball court
  • Will pass within 28,307,307 km of Earth in 2023
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

348306 (2005 AY28) is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2005 AY28 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2005 AY28 orbits the sun every 298 days (0.82 years), coming as close as 0.38 AU and reaching as far as 1.37 AU from the sun. Based on its brightness and the way it reflects light, 2005 AY28 is probably between 0.130 to 0.291 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a basketball court.

Close Approaches

2005 AY28's orbit is 0.04 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.

2005 AY28 has 29 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Feb. 2, 2023 28,307,307 23.410
Nov. 11, 2025 21,919,676 14.353
Feb. 8, 2036 9,403,451 16.053
Nov. 14, 2038 22,732,482 21.178
Feb. 3, 2045 21,944,511 22.001
Nov. 11, 2047 17,866,439 15.339
Feb. 7, 2058 17,561,578 14.507
Feb. 6, 2067 11,210,063 19.570
Nov. 11, 2069 14,102,170 17.427
Feb. 6, 2080 24,250,359 13.588
Feb. 6, 2089 6,324,646 18.178
Nov. 13, 2091 15,350,966 18.745
Nov. 15, 2100 28,917,146 13.252
Feb. 5, 2102 26,834,089 13.330
Feb. 8, 2111 8,498,789 18.853
Nov. 13, 2113 14,095,189 17.770
Feb. 8, 2124 22,026,707 13.875
Feb. 6, 2133 14,449,575 20.294
Nov. 13, 2135 15,110,078 16.334
Feb. 9, 2146 12,715,370 15.403
Nov. 16, 2148 24,467,842 21.700
Feb. 4, 2155 24,298,668 22.501
Nov. 13, 2157 20,911,995 14.542
Feb. 9, 2168 5,839,121 17.685
Nov. 14, 2170 15,209,215 18.751
Nov. 16, 2179 29,391,832 13.200
Feb. 6, 2181 26,508,807 13.374
Feb. 8, 2190 8,936,839 18.914
Nov. 13, 2192 13,813,472 17.642

Images and Observations

2005 AY28's orbit is determined by observations dating back to Jan. 13, 2005. It was last officially observed on Jan. 7, 2022. The IAU Minor Planet Center records 246 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 2005 AY28:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.8728 AU
  • Eccentricity: 0.5702
  • Inclination: 5.88°
  • Longitude of Ascending Node: 117.49°
  • Argument of Periapsis: 155.93°
  • Mean Anomaly: 205.16°

Physical Characteristics

  • Diameter: ~0.168 km
  • Magnitude: 21.55

Derived Characteristics

  • Orbit Period: 298 days (0.82 years)
  • Avg. Orbit Speed: 31.86 km/s
  • Aphelion Distance: 1.37 AU
  • Perihelion Distance: 0.38 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 348306 (2005 AY28) 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 2005 AY28 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.