Key Facts

  • Categorized as a Amor-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 27,393,875 km of Earth in 2028
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

66407 (1999 LQ28) is a very small asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified 1999 LQ28 as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated any imminent likelihood of future collision.

1999 LQ28 orbits the sun every 479 days (1.31 years), coming as close as 1.05 AU and reaching as far as 1.34 AU from the sun. Based on its brightness and the way it reflects light, 1999 LQ28 is probably between 0.441 to 0.986 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to the Golden Gate Bridge.

Close Approaches

1999 LQ28's orbit is 0.10 AU from Earth's orbit at its closest point. This means that there is an wide berth between this asteroid and Earth at all times.

1999 LQ28 has 9 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Dec. 25, 2028 27,393,875 11.486
Dec. 24, 2045 29,760,594 13.147
Dec. 24, 2066 23,363,617 12.541
Dec. 24, 2087 19,485,361 12.186
Dec. 25, 2108 18,119,006 12.058
Dec. 25, 2129 19,149,005 12.152
Dec. 25, 2150 22,858,211 12.495
Dec. 26, 2171 28,894,218 13.062
Dec. 26, 2196 25,665,900 11.463

Images and Observations

1999 LQ28's orbit is determined by observations dating back to July 27, 1982. It was last officially observed on July 4, 2016. The IAU Minor Planet Center records 288 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 LQ28:

References

Search

   or view a random object

Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 1.19842836932 AU
  • Eccentricity: 0.120022867376
  • Inclination: 21.7722163551°
  • Longitude of Ascending Node: 95.0009609719°
  • Argument of Periapsis: 320.554847299°
  • Mean Anomaly: 265.176302699°

Physical Characteristics

  • Diameter: ~0.569 km
  • Magnitude: 18.9

Derived Characteristics

  • Orbit Period: 479 days (1.31 years)
  • Avg. Orbit Speed: 27.21 km/s
  • Aphelion Distance: 1.34 AU
  • Perihelion Distance: 1.05 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 66407 (1999 LQ28) 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.