Key Facts


16684 (1994 JQ1) is a large asteroid whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 1994 JQ1 as potentially hazardous because its orbit does not bring it close to Earth.

1994 JQ1 orbits the sun every 106,000 days (290.21 years), coming as close as 41.81 AU and reaching as far as 45.99 AU from the sun. Based on its brightness and the way it reflects light, 1994 JQ1 is probably between 120.936 to 270.421 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. state of Vermont.

No Close Approaches

1994 JQ1's orbit is 40.80 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

1994 JQ1's orbit is determined by observations dating back to May 11, 1994. It was last officially observed on July 9, 2020. The IAU Minor Planet Center records 90 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 1994 JQ1:



   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 43.9 AU
  • Eccentricity: 0.0477
  • Inclination: 3.75°
  • Longitude of Ascending Node: 25.76°
  • Argument of Periapsis: 256.05°
  • Mean Anomaly: 329.16°

Physical Characteristics

  • Diameter: ~156.127 km
  • Magnitude: 6.71

Derived Characteristics

  • Orbit Period: 106,000 days (290.21 years)
  • Avg. Orbit Speed: 4.51 km/s
  • Aphelion Distance: 45.99 AU
  • Perihelion Distance: 41.81 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 16684 (1994 JQ1) 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.