19556 (1999 JV77)

Mid-sized Main-belt Asteroid

Space Reference » Main-belt Asteroids » 19556 (1999 JV77)

Key Facts

Overview

19556 (1999 JV77) is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified 1999 JV77 as potentially hazardous because its orbit does not bring it close to Earth.

1999 JV77 orbits the sun every 1,360 days (3.72 years), coming as close as 1.96 AU and reaching as far as 2.84 AU from the sun. 1999 JV77 is about 5.7 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.

The rotation of 1999 JV77 has been observed. It completes a rotation on its axis every 2.36 hours.

No Close Approaches

1999 JV77's orbit is 0.96 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

1999 JV77's orbit is determined by observations dating back to Feb. 17, 1950. It was last officially observed on Feb. 3, 2023. The IAU Minor Planet Center records 4,843 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 1999 JV77:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.404 AU
  • Eccentricity: 0.1832
  • Inclination: 12.31°
  • Longitude of Ascending Node: 95.07°
  • Argument of Periapsis: 217.94°
  • Mean Anomaly: 132.02°

Physical Characteristics

  • Diameter: 5.72700 km
  • Magnitude: 14.11
  • Albedo: 0.133

Derived Characteristics

  • Orbit Period: 1,360 days (3.72 years)
  • Avg. Orbit Speed: 19.23 km/s
  • Aphelion Distance: 2.84 AU
  • Perihelion Distance: 1.96 AU
  • Rotation Period: 2.36 hours

Map Comparison

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Orbit Simulation

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Sky Map

The position of 19556 (1999 JV77) 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 1999 JV77 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.