Key Facts

Overview

12816 (1996 ES1) is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified 1996 ES1 as potentially hazardous because its orbit does not bring it close to Earth.

1996 ES1 orbits the sun every 2,070 days (5.67 years), coming as close as 2.56 AU and reaching as far as 3.80 AU from the sun. Based on its brightness and the way it reflects light, 1996 ES1 is probably between 4.727 to 10.569 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the San Francisco Bay.

No Close Approaches

1996 ES1's orbit is 1.54 AU from Earth's orbit at its closest point. This means that there is an extremely 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

1996 ES1's orbit is determined by observations dating back to Sept. 30, 1992. It was last officially observed on Jan. 24, 2023. The IAU Minor Planet Center records 2,199 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 1996 ES1:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.181 AU
  • Eccentricity: 0.196
  • Inclination: 3.15°
  • Longitude of Ascending Node: 175.27°
  • Argument of Periapsis: 80.49°
  • Mean Anomaly: 240.72°

Physical Characteristics

  • Diameter: ~6.102 km
  • Magnitude: 13.75

Derived Characteristics

  • Orbit Period: 2,070 days (5.67 years)
  • Avg. Orbit Speed: 16.72 km/s
  • Aphelion Distance: 3.80 AU
  • Perihelion Distance: 2.56 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 12816 (1996 ES1) 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 1996 ES1 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.