Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 2,137,768 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2019 JG1 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2019 JG1 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 JG1 orbits the sun every 554 days (1.52 years), coming as close as 0.91 AU and reaching as far as 1.73 AU from the sun. Based on its brightness and the way it reflects light, 2019 JG1 is probably between 0.008 to 0.037 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2019 JG1's orbit is 0.01 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.

2019 JG1 has 19 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 17, 2019 2,137,768 8.081
July 12, 2022 17,826,179 6.525
Sept. 9, 2025 7,214,608 7.902
May 5, 2060 20,537,522 12.014
May 30, 2063 9,789,359 6.409
Aug. 11, 2066 15,507,206 6.173
Sept. 18, 2069 16,501,365 10.899
May 7, 2101 19,747,161 11.853
June 4, 2104 11,574,385 6.265
Aug. 22, 2107 13,547,296 6.134
Sept. 22, 2110 21,607,246 12.009
May 12, 2142 10,308,240 9.992
June 23, 2145 15,891,112 6.307
Sept. 1, 2148 10,570,808 6.492
Sept. 24, 2151 23,024,598 12.305
May 14, 2186 6,585,242 9.237
June 19, 2189 15,174,168 6.243
Aug. 17, 2192 14,770,493 6.136
Sept. 19, 2195 11,992,008 9.896

Images and Observations

2019 JG1's orbit is determined by observations dating back to May 1, 2019. It was last officially observed on May 16, 2019. The IAU Minor Planet Center records 56 observations used to determine its orbit.

Accessibility and Exploration

2019 JG1 can be reached with a journey of 346 days. This trajectory would require a delta-v of 9.809 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 2,160 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2019 JG1.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2019 JG1:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.32 AU
  • Eccentricity: 0.3113
  • Inclination: 3.32°
  • Longitude of Ascending Node: 221.95°
  • Argument of Periapsis: 69.57°
  • Mean Anomaly: 276.84°

Physical Characteristics

  • Diameter: ~0.023 km
  • Magnitude: 26.6

Derived Characteristics

  • Orbit Period: 554 days (1.52 years)
  • Avg. Orbit Speed: 25.92 km/s
  • Aphelion Distance: 1.73 AU
  • Perihelion Distance: 0.91 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2019 JG1 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.