Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 15,143,497 km of Earth in 2026
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

33342 (1998 WT24) is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 1998 WT24 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

1998 WT24 orbits the sun every 222 days (0.61 years), coming as close as 0.42 AU and reaching as far as 1.02 AU from the sun. Based on its brightness and the way it reflects light, 1998 WT24 is probably between 0.699 to 1.563 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to the Golden Gate Bridge.

The rotation of 1998 WT24 has been observed. It completes a rotation on its axis every 3.70 days.

Close Approaches

1998 WT24'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.

1998 WT24 has 31 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Dec. 24, 2026 15,143,497 12.183
Nov. 26, 2029 7,415,043 8.499
Dec. 20, 2040 4,093,415 9.705
Nov. 16, 2043 9,814,162 9.500
Dec. 19, 2054 2,148,564 9.254
Nov. 15, 2057 10,497,276 9.796
Dec. 22, 2068 6,379,493 10.204
Nov. 22, 2071 7,803,703 8.822
Nov. 12, 2074 29,428,618 14.953
Dec. 24, 2082 18,567,658 12.959
Dec. 6, 2085 5,233,263 8.400
Nov. 11, 2088 17,999,062 12.017
Dec. 23, 2096 29,911,138 15.593
Dec. 18, 2099 1,890,944 9.008
Nov. 15, 2102 10,700,132 9.977
Dec. 23, 2113 6,509,023 10.191
Nov. 21, 2116 7,611,660 8.824
Nov. 13, 2119 29,821,551 15.104
Dec. 26, 2127 20,131,382 13.328
Dec. 8, 2130 5,048,356 8.412
Nov. 12, 2133 17,557,584 11.943
Dec. 18, 2144 2,140,571 9.078
Nov. 17, 2147 9,671,649 9.713
Dec. 25, 2158 11,615,917 11.326
Nov. 28, 2161 6,604,532 8.484
Nov. 12, 2164 24,760,995 13.869
Dec. 25, 2172 23,650,446 14.119
Dec. 14, 2175 3,492,636 8.583
Nov. 14, 2178 14,005,807 11.041
Dec. 19, 2189 2,568,234 9.173
Nov. 17, 2192 8,929,531 9.524

Images and Observations

1998 WT24's orbit is determined by observations dating back to Nov. 24, 1998. It was last officially observed on Feb. 3, 2019. The IAU Minor Planet Center records 1,770 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 1998 WT24:

References

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Orbital Elements

  • Epoch: 2455439.5 JD
  • Semi-major axis: 0.718454564876 AU
  • Eccentricity: 0.417938892514
  • Inclination: 7.34258078404°
  • Longitude of Ascending Node: 81.9993957247°
  • Argument of Periapsis: 167.294252387°
  • Mean Anomaly: 318.366092449°

Physical Characteristics

  • Diameter: ~0.903 km
  • Magnitude: 17.9

Derived Characteristics

  • Orbit Period: 222 days (0.61 years)
  • Avg. Orbit Speed: 35.14 km/s
  • Aphelion Distance: 1.02 AU
  • Perihelion Distance: 0.42 AU
  • Rotation Period: 3.70 days

Size Comparison

Orbit Simulation

Sky Map

The position of 33342 (1998 WT24) 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.