Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a football field
  • Will pass within 8,770,890 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

535844 (2015 BY310) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2015 BY310 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2015 BY310 orbits the sun every 729 days (2.00 years), coming as close as 0.95 AU and reaching as far as 2.22 AU from the sun. Based on its brightness and the way it reflects light, 2015 BY310 is probably between 0.074 to 0.329 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a football field.

The rotation of 2015 BY310 has been observed. It completes a rotation on its axis every 0.09 hours.

Close Approaches

2015 BY310's orbit is 0.02 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 BY310 has 20 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
March 20, 2019 8,770,890 6.832
March 10, 2021 5,429,658 7.321
March 7, 2023 4,031,506 7.717
March 5, 2025 3,672,675 7.860
March 4, 2027 3,527,751 8.022
March 2, 2029 3,781,257 8.343
Feb. 25, 2031 7,855,157 9.412
Feb. 19, 2033 17,129,551 11.376
Feb. 14, 2035 28,020,196 13.593
June 9, 2158 26,512,122 12.483
June 2, 2160 17,348,112 10.155
May 24, 2162 12,659,382 8.203
May 9, 2164 12,668,225 6.925
April 21, 2166 13,159,438 6.693
March 31, 2168 11,163,724 6.696
March 15, 2170 7,103,761 7.098
March 7, 2172 4,091,373 7.872
March 2, 2174 5,227,701 8.793
Feb. 23, 2176 13,758,320 10.744
Feb. 17, 2178 25,083,298 13.071

Images and Observations

2015 BY310's orbit is determined by observations dating back to Jan. 18, 2015. It was last officially observed on July 5, 2021. The IAU Minor Planet Center records 380 observations used to determine its orbit.

Accessibility and Exploration

2015 BY310 can be reached with a journey of 346 days. This trajectory would require a delta-v of 11.956 km/s. To put this into perspective, the delta-v to launch a rocket to Low-Earth Orbit is 9.7 km/s. There are 6 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2015 BY310.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2015 BY310:

References

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Orbital Elements

  • Epoch: 2459800.5 JD
  • Semi-major axis: 1.586 AU
  • Eccentricity: 0.4008
  • Inclination: 4.83°
  • Longitude of Ascending Node: 328.64°
  • Argument of Periapsis: 229.34°
  • Mean Anomaly: 243.06°

Physical Characteristics

  • Diameter: ~0.202 km
  • Magnitude: 21.87

Derived Characteristics

  • Orbit Period: 729 days (2.00 years)
  • Avg. Orbit Speed: 23.67 km/s
  • Aphelion Distance: 2.22 AU
  • Perihelion Distance: 0.95 AU
  • Rotation Period: 0.09 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of 535844 (2015 BY310) 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 BY310 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.