Key Facts

Overview

Baltimore is a mid-sized asteroid with an orbit that crosses the orbit of Mars. NASA JPL has not classified Baltimore as potentially hazardous because its orbit does not bring it close to Earth.

Baltimore orbits the sun every 1,700 days (4.65 years), coming as close as 1.62 AU and reaching as far as 3.96 AU from the sun. Baltimore is about 7.5 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.

The rotation of Baltimore has been observed. It completes a rotation on its axis every 4.99 hours.

No Close Approaches

Baltimore's orbit is 0.88 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

Baltimore's orbit is determined by observations dating back to Jan. 23, 1975. It was last officially observed on June 21, 2023. The IAU Minor Planet Center records 2,372 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 Baltimore:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.791 AU
  • Eccentricity: 0.4203
  • Inclination: 28.96°
  • Longitude of Ascending Node: 153.64°
  • Argument of Periapsis: 272.23°
  • Mean Anomaly: 191.19°

Physical Characteristics

  • Diameter: 7.54000 km
  • Magnitude: 13.47
  • Albedo: 0.2150

Derived Characteristics

  • Orbit Period: 1,700 days (4.65 years)
  • Avg. Orbit Speed: 17.86 km/s
  • Aphelion Distance: 3.96 AU
  • Perihelion Distance: 1.62 AU
  • Rotation Period: 4.99 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Baltimore 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.