Key Facts

  • Categorized as a Amor-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 4,335,559 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation


2016 PD1 is a very small asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified 2016 PD1 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.

2016 PD1 orbits the sun every 544 days (1.49 years), coming as close as 1.02 AU and reaching as far as 1.59 AU from the sun. Based on its brightness and the way it reflects light, 2016 PD1 is probably between 0.030 to 0.135 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2016 PD1'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.

2016 PD1 has 11 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Aug. 26, 2019 4,335,559 5.867
Aug. 12, 2022 22,081,300 8.523
Sept. 20, 2077 17,468,026 6.015
Aug. 28, 2080 3,501,693 5.633
Aug. 15, 2083 17,513,667 7.788
Oct. 7, 2138 28,229,281 7.744
Sept. 11, 2141 10,732,452 5.413
Aug. 25, 2144 5,756,812 6.077
Aug. 11, 2147 27,001,388 9.423
Sept. 22, 2196 17,834,815 5.958
Aug. 28, 2199 4,294,222 5.861

Images and Observations

2016 PD1's orbit is determined by observations dating back to Aug. 2, 2016. It was last officially observed on Aug. 30, 2019. The IAU Minor Planet Center records 109 observations used to determine its orbit.

Accessibility and Exploration

2016 PD1 can be reached with a journey of 370 days. This trajectory would require a delta-v of 11.042 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 155 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2016 PD1.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2016 PD1:



   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.304 AU
  • Eccentricity: 0.2187
  • Inclination: 8.62°
  • Longitude of Ascending Node: 152.21°
  • Argument of Periapsis: 204.58°
  • Mean Anomaly: 243.92°

Physical Characteristics

  • Diameter: ~0.083 km
  • Magnitude: 23.8

Derived Characteristics

  • Orbit Period: 544 days (1.49 years)
  • Avg. Orbit Speed: 26.08 km/s
  • Aphelion Distance: 1.59 AU
  • Perihelion Distance: 1.02 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2016 PD1 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 2016 PD1 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.