Key Facts

Overview

6703 (1988 CH) is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified 1988 CH as potentially hazardous because its orbit does not bring it close to Earth.

1988 CH orbits the sun every 1,490 days (4.08 years), coming as close as 1.96 AU and reaching as far as 3.15 AU from the sun. Based on its brightness and the way it reflects light, 1988 CH is probably between 5.605 to 12.533 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the San Francisco Bay.

No Close Approaches

1988 CH's orbit is 0.98 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

1988 CH's orbit is determined by observations dating back to Sept. 19, 1974. It was last officially observed on June 24, 2023. The IAU Minor Planet Center records 2,754 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 1988 CH:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.558 AU
  • Eccentricity: 0.2332
  • Inclination: 4.95°
  • Longitude of Ascending Node: 166.42°
  • Argument of Periapsis: 275.09°
  • Mean Anomaly: 287.71°

Physical Characteristics

  • Diameter: ~7.236 km
  • Magnitude: 13.38

Derived Characteristics

  • Orbit Period: 1,490 days (4.08 years)
  • Avg. Orbit Speed: 18.68 km/s
  • Aphelion Distance: 3.15 AU
  • Perihelion Distance: 1.96 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 6703 (1988 CH) 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.