Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to the Golden Gate Bridge (0.88 km diameter)
  • Will pass within 27,235,813 km of Earth in 2029
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

96590 (1998 XB) is a small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 1998 XB 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.

1998 XB orbits the sun every 316 days (0.87 years), coming as close as 0.59 AU and reaching as far as 1.23 AU from the sun. 1998 XB is about 0.9 kilometers in diameter, making it small in absolute terms, but larger than ~97% of asteroids, comparable in size to the Golden Gate Bridge.

The rotation of 1998 XB has been observed. It completes a rotation on its axis every 520.00 days.

Close Approaches

1998 XB's orbit is 0.11 AU from Earth's orbit at its closest point. This means that there is an wide berth between this asteroid and Earth at all times.

1998 XB has 13 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Nov. 28, 2029 27,235,813 10.131
Nov. 13, 2035 25,762,913 15.226
Nov. 14, 2048 17,001,025 11.653
Nov. 24, 2061 24,488,885 10.169
Nov. 13, 2080 17,285,095 12.372
Nov. 21, 2093 21,791,350 10.332
Nov. 14, 2112 18,693,768 13.131
Nov. 19, 2125 19,515,182 10.588
Nov. 14, 2144 21,087,943 13.986
Nov. 17, 2157 17,841,308 10.952
Dec. 1, 2170 27,662,563 10.127
Nov. 14, 2176 24,658,574 15.018
Nov. 16, 2189 16,750,203 11.519

Images and Observations

1998 XB's orbit is determined by observations dating back to Jan. 1, 1992. It was last officially observed on Nov. 12, 2019. The IAU Minor Planet Center records 2,473 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 XB:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 0.9078 AU
  • Eccentricity: 0.3512
  • Inclination: 13.6°
  • Longitude of Ascending Node: 75.71°
  • Argument of Periapsis: 202.71°
  • Mean Anomaly: 134.82°

Physical Characteristics

  • Diameter: 0.88200 km
  • Magnitude: 16.2
  • Albedo: 0.489
  • Spectral type (SMASS): S:

Derived Characteristics

  • Orbit Period: 316 days (0.87 years)
  • Avg. Orbit Speed: 31.25 km/s
  • Aphelion Distance: 1.23 AU
  • Perihelion Distance: 0.59 AU
  • Rotation Period: 520.00 days

Size Comparison

Orbit Simulation

Sky Map

The position of 96590 (1998 XB) 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.