Johngee

16588 Johngee (1992 ST)

Space Reference » Mars-crossing Asteroids » Johngee

Key Facts

Overview

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

Johngee orbits the sun every 1,500 days (4.11 years), coming as close as 1.57 AU and reaching as far as 3.55 AU from the sun. Based on its brightness and the way it reflects light, Johngee is probably between 2.242 to 5.012 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to Mount Everest.

No Close Approaches

Johngee's orbit is 0.58 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

Johngee's orbit is determined by observations dating back to Nov. 9, 1988. It was last officially observed on June 19, 2023. The IAU Minor Planet Center records 957 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 Johngee:

References

Search

   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.562 AU
  • Eccentricity: 0.3858
  • Inclination: 8.1°
  • Longitude of Ascending Node: 30.42°
  • Argument of Periapsis: 16.82°
  • Mean Anomaly: 188.64°

Physical Characteristics

  • Diameter: ~2.894 km
  • Magnitude: 15.37

Derived Characteristics

  • Orbit Period: 1,500 days (4.11 years)
  • Avg. Orbit Speed: 18.58 km/s
  • Aphelion Distance: 3.55 AU
  • Perihelion Distance: 1.57 AU

Map Comparison

Click to load map

Orbit Simulation

⧉

Sky Map

The position of Johngee 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 Johngee 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.