Key Facts

  • Classified as a Aten-class Asteroid
  • Comparable in size to the Golden Gate Bridge (0.94 km diameter)
  • Will pass within 29,706,418 km of Earth in 2038
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

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

Sekhmet orbits the sun every 337 days (0.92 years), coming as close as 0.67 AU and reaching as far as 1.23 AU from the sun. Sekhmet is about 0.9 kilometers in diameter, making it a small to average asteroid, comparable in size to the Golden Gate Bridge.

The rotation of Sekhmet has been observed. It completes a rotation on its axis every 2.82 days.

Close Approaches

Sekhmet'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.

Sekhmet has 14 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 20, 2038 29,706,418 25.307
May 19, 2050 23,917,999 24.686
May 19, 2062 19,950,877 24.210
May 18, 2074 17,768,262 23.875
May 18, 2086 16,982,524 23.654
May 18, 2098 16,997,472 23.484
May 19, 2110 17,305,404 23.396
May 19, 2122 17,691,043 23.318
May 19, 2134 17,988,415 23.283
May 19, 2146 18,192,871 23.259
May 19, 2158 18,253,617 23.246
May 19, 2170 18,222,688 23.262
May 19, 2182 18,154,610 23.258
May 19, 2194 18,066,222 23.285

Images and Observations

Sekhmet's orbit is determined by observations dating back to May 14, 1991. It was last officially observed on March 16, 2017. The IAU Minor Planet Center records 360 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 Sekhmet:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 0.94745272329 AU
  • Eccentricity: 0.29632235412
  • Inclination: 48.9690088135°
  • Longitude of Ascending Node: 58.5411568208°
  • Argument of Periapsis: 37.4208925322°
  • Mean Anomaly: 221.71662726°

Physical Characteristics

  • Diameter: 0.93500 km
  • Magnitude: 16.6
  • Albedo: 0.507

Derived Characteristics

  • Orbit Period: 337 days (0.92 years)
  • Avg. Orbit Speed: 30.60 km/s
  • Aphelion Distance: 1.23 AU
  • Perihelion Distance: 0.67 AU
  • Rotation Period: 2.82 days

Size Comparison

Orbit Simulation

Sky Map

The position of Sekhmet 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.