Key Facts

Overview

Mera is a small asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified Mera 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.

Mera orbits the sun every 770 days (2.11 years), coming as close as 1.12 AU and reaching as far as 2.17 AU from the sun. Based on its brightness and the way it reflects light, Mera is probably between 1.395 to 3.119 kilometers in diameter, making it larger than most asteroids, very roughly comparable in size to Mount Everest.

The rotation of Mera has been observed. It completes a rotation on its axis every 3.19 days.

No Close Approaches

Mera's orbit is 0.29 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.

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

Images and Observations

Mera's orbit is determined by observations dating back to May 11, 1985. It was last officially observed on Aug. 26, 2019. The IAU Minor Planet Center records 732 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 Mera:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 1.6447041343 AU
  • Eccentricity: 0.320057101704
  • Inclination: 36.7717327445°
  • Longitude of Ascending Node: 232.531666975°
  • Argument of Periapsis: 288.90670288°
  • Mean Anomaly: 74.949777188°

Physical Characteristics

  • Diameter: ~1.801 km
  • Magnitude: 16.4

Derived Characteristics

  • Orbit Period: 770 days (2.11 years)
  • Avg. Orbit Speed: 23.22 km/s
  • Aphelion Distance: 2.17 AU
  • Perihelion Distance: 1.12 AU
  • Rotation Period: 3.19 days

Size Comparison

Orbit Simulation

Sky Map

The position of Mera 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.