Key Facts

  • Categorized as a Amor-class Asteroid
  • Comparable in size to the U.S. Capitol building (0.34 km diameter)
  • Will pass within 17,636,802 km of Earth in 2047
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

2015 RR150 is a very small asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified 2015 RR150 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2015 RR150 orbits the sun every 1,060 days (2.90 years), coming as close as 1.02 AU and reaching as far as 3.05 AU from the sun. 2015 RR150 is about 0.3 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, comparable in size to the U.S. Capitol building.

Close Approaches

2015 RR150's orbit is 0.03 AU from Earth's orbit at its closest point. This means that there is a wide berth between this asteroid and Earth at all times.

2015 RR150 has 3 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Sept. 12, 2047 17,636,802 24.120
Sept. 16, 2114 8,595,506 24.225
Sept. 13, 2146 15,352,680 24.258

Images and Observations

2015 RR150's orbit is determined by observations dating back to Sept. 14, 2015. It was last officially observed on July 22, 2018. The IAU Minor Planet Center records 67 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 2015 RR150:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.039 AU
  • Eccentricity: 0.4981
  • Inclination: 42.16°
  • Longitude of Ascending Node: 174.22°
  • Argument of Periapsis: 167.33°
  • Mean Anomaly: 277.65°

Physical Characteristics

  • Diameter: 0.34300 km
  • Magnitude: 19.63
  • Albedo: 0.198

Derived Characteristics

  • Orbit Period: 1,060 days (2.90 years)
  • Avg. Orbit Speed: 20.93 km/s
  • Aphelion Distance: 3.05 AU
  • Perihelion Distance: 1.02 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2015 RR150 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 below comparison is an artistic rendering that uses available data on the diameter of 2015 RR150 to create an approximate landscape rendering with New York City in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.