19099 (1981 EC4)

Mid-sized Main-belt Asteroid

Space Reference » Main-belt Asteroids » 19099 (1981 EC4)

Key Facts

Overview

19099 (1981 EC4) is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified 1981 EC4 as potentially hazardous because its orbit does not bring it close to Earth.

1981 EC4 orbits the sun every 1,510 days (4.13 years), coming as close as 2.29 AU and reaching as far as 2.87 AU from the sun. 1981 EC4 is about 6.5 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.

No Close Approaches

1981 EC4's orbit is 1.30 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

1981 EC4's orbit is determined by observations dating back to Feb. 2, 1981. It was last officially observed on June 24, 2023. The IAU Minor Planet Center records 1,498 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 1981 EC4:

References

Search

   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.577 AU
  • Eccentricity: 0.1128
  • Inclination: 10.23°
  • Longitude of Ascending Node: 230.62°
  • Argument of Periapsis: 206.92°
  • Mean Anomaly: 185.86°

Physical Characteristics

  • Diameter: 6.45800 km
  • Magnitude: 15.05
  • Albedo: 0.061

Derived Characteristics

  • Orbit Period: 1,510 days (4.13 years)
  • Avg. Orbit Speed: 18.57 km/s
  • Aphelion Distance: 2.87 AU
  • Perihelion Distance: 2.29 AU

Map Comparison

Click to load map

Orbit Simulation

⧉

Sky Map

The position of 19099 (1981 EC4) 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 1981 EC4 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.