2019 GW1

Very small Aten-class Asteroid

Near-Earth
Space Reference » Aten-class Asteroids » 2019 GW1

Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 1,290,899 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2019 GW1 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2019 GW1 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 GW1 orbits the sun every 330 days (0.90 years), coming as close as 0.83 AU and reaching as far as 1.04 AU from the sun. Based on its brightness and the way it reflects light, 2019 GW1 is probably between 0.010 to 0.047 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2019 GW1'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 GW1 has 31 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
April 4, 2019 1,290,899 7.187
Sept. 19, 2019 22,586,664 8.295
Oct. 24, 2028 26,269,634 8.317
April 13, 2038 23,290,989 7.446
April 3, 2047 4,435,836 7.428
Sept. 25, 2047 21,595,109 8.265
April 3, 2066 11,885,801 8.148
Oct. 4, 2066 21,583,188 8.275
April 10, 2076 19,534,738 7.198
Aug. 26, 2076 29,147,968 8.489
April 4, 2085 28,569,775 10.448
Oct. 23, 2085 25,650,349 8.273
April 5, 2095 6,580,263 6.916
Sept. 11, 2095 23,879,940 8.306
Oct. 27, 2104 26,757,965 8.277
April 9, 2114 14,609,767 6.979
Sept. 2, 2114 27,022,379 8.386
April 4, 2123 18,612,637 8.990
Oct. 12, 2123 22,802,482 8.310
April 17, 2133 28,351,873 7.854
April 4, 2142 5,750,734 7.546
Sept. 27, 2142 21,350,836 8.254
April 16, 2152 27,476,611 7.772
April 4, 2161 19,411,138 9.108
Oct. 13, 2161 22,942,719 8.275
Sept. 5, 2171 26,123,767 8.376
Oct. 28, 2180 27,027,282 8.243
April 6, 2190 6,687,161 6.916
Sept. 12, 2190 23,813,216 8.304
April 5, 2199 28,884,993 10.516
Oct. 24, 2199 25,756,957 8.291

Images and Observations

2019 GW1's orbit is determined by observations dating back to April 4, 2019. It was last officially observed on April 16, 2019. The IAU Minor Planet Center records 117 observations used to determine its orbit.

Accessibility and Exploration

2019 GW1 can be reached with a journey of 354 days. This trajectory would require a delta-v of 9.339 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 1,606 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2019 GW1.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2019 GW1:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.9345 AU
  • Eccentricity: 0.1147
  • Inclination: 13.3°
  • Longitude of Ascending Node: 194.62°
  • Argument of Periapsis: 221.5°
  • Mean Anomaly: 98.58°

Physical Characteristics

  • Diameter: ~0.029 km
  • Magnitude: 26.1

Derived Characteristics

  • Orbit Period: 330 days (0.90 years)
  • Avg. Orbit Speed: 30.81 km/s
  • Aphelion Distance: 1.04 AU
  • Perihelion Distance: 0.83 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 2019 GW1 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 2019 GW1 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.