Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 13,671,255 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2019 PO1 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2019 PO1 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.

2019 PO1 orbits the sun every 385 days (1.05 years), coming as close as 0.97 AU and reaching as far as 1.10 AU from the sun. Based on its brightness and the way it reflects light, 2019 PO1 is probably between 0.048 to 0.210 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2019 PO1's orbit is 0.01 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.

2019 PO1 has 7 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Jan. 9, 2019 13,671,255 2.025
July 14, 2019 2,881,973 1.596
March 5, 2038 2,733,295 2.547
Nov. 8, 2038 14,246,406 2.275
Aug. 6, 2039 9,084,256 3.729
Feb. 26, 2062 26,907,049 7.322
Aug. 7, 2064 27,479,189 7.298

NASA Sentry has assessed impact risk for 16 very close approach scenarios. Here are the top scenarios ordered by probability of impact:

Date Distance from Earth (km) Distance Error (km) Probability of Impact (%) Impact Energy (Mt)
Aug. 11, 2091 5,944.92 ±0.87 0.00042 0.01361
Aug. 8, 2116 4,108.80 ±1.24 0.00022 0.01361
Aug. 11, 2110 1,855.38 ±2.97 0.00019 0.01362
Aug. 9, 2109 5,457.00 ±1.66 0.00014 0.01362
Aug. 1, 2107 1,373.88 ±1.61 0.00011 0.01363
Dec. 29, 2090 2,548.74 ±16.41 0.00010 0.01361
Jan. 10, 2094 4,121.64 ±2.29 0.00009 0.01363
Aug. 5, 2097 2,092.92 ±0.88 0.00006 0.01361
Aug. 3, 2084 442.98 ±4.89 0.00005 0.01364
Aug. 9, 2095 5,944.92 ±0.91 0.00005 0.01361
Aug. 8, 2117 3,871.26 ±1.02 0.00002 0.01361
Aug. 7, 2106 4,057.44 ±2.71 0.00002 0.01363
Aug. 4, 2096 1,624.26 ±1.64 0.00001 0.01362
July 20, 2085 2,189.22 ±1.35 0.00001 0.01364
Aug. 1, 2091 5,110.32 ±0.64 0.00000 0.0136
July 29, 2092 5,951.34 ±0.66 0.00000 0.0136

Images and Observations

2019 PO1's orbit is determined by observations dating back to Aug. 9, 2019. It was last officially observed on Sept. 25, 2019. The IAU Minor Planet Center records 55 observations used to determine its orbit.

Accessibility and Exploration

2019 PO1 can be reached with a journey of 362 days. This trajectory would require a delta-v of 3.96 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 1,387,061 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2019 PO1.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2019 PO1:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 1.036 AU
  • Eccentricity: 0.061
  • Inclination: 1.12°
  • Longitude of Ascending Node: 328.27°
  • Argument of Periapsis: 250.26°
  • Mean Anomaly: 7.9°

Physical Characteristics

  • Diameter: ~0.129 km
  • Magnitude: 27.8

Derived Characteristics

  • Orbit Period: 385 days (1.05 years)
  • Avg. Orbit Speed: 29.27 km/s
  • Aphelion Distance: 1.10 AU
  • Perihelion Distance: 0.97 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2019 PO1 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 above comparison is an artistic rendering that uses available data on the diameter of 2019 PO1 to create an approximate landscape rendering. The approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.