100333 (1995 SN5)

Mid-sized Mars-crossing Asteroid

Space Reference » Mars-crossing Asteroids » 100333 (1995 SN5)

Key Facts

Overview

100333 (1995 SN5) is a mid-sized asteroid with an orbit that crosses the orbit of Mars. NASA JPL has not classified 1995 SN5 as potentially hazardous because its orbit does not bring it close to Earth.

1995 SN5 orbits the sun every 1,270 days (3.48 years), coming as close as 1.58 AU and reaching as far as 3.02 AU from the sun. Based on its brightness and the way it reflects light, 1995 SN5 is probably between 1.839 to 4.112 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to Mount Everest.

No Close Approaches

1995 SN5's orbit is 0.75 AU from Earth's orbit at its closest point. This means that there is a very wide berth between this asteroid and Earth at all times.

Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.

Images and Observations

1995 SN5's orbit is determined by observations dating back to Sept. 22, 1995. It was last officially observed on April 23, 2022. The IAU Minor Planet Center records 786 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 1995 SN5:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.3 AU
  • Eccentricity: 0.311
  • Inclination: 24.15°
  • Longitude of Ascending Node: 14.47°
  • Argument of Periapsis: 261.4°
  • Mean Anomaly: 47.76°

Physical Characteristics

  • Diameter: ~2.374 km
  • Magnitude: 15.8

Derived Characteristics

  • Orbit Period: 1,270 days (3.48 years)
  • Avg. Orbit Speed: 19.70 km/s
  • Aphelion Distance: 3.02 AU
  • Perihelion Distance: 1.58 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 100333 (1995 SN5) 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 above comparison is an artistic rendering that uses available data on the diameter of 1995 SN5 to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.