Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to the U.S. Pentagon (1.40 km diameter)
  • Will pass within 28,439,663 km of Earth in 2022
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

99907 (1989 VA) is a mid-sized asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 1989 VA 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.

1989 VA orbits the sun every 227 days (0.62 years), coming as close as 0.30 AU and reaching as far as 1.16 AU from the sun. 1989 VA is about 1.4 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the U.S. Pentagon.

The rotation of 1989 VA has been observed. It completes a rotation on its axis every 2.51 days.

1989 VA's spectral type None (Tholen) / Sq (SMASSII) indicates that it is likely to contain magnesium silicate and iron silicate.

Close Approaches

1989 VA's orbit is 0.16 AU from Earth's orbit at its closest point. This means that there is an wide berth between this asteroid and Earth at all times.

1989 VA has 38 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Nov. 20, 2022 28,439,663 17.397
Oct. 24, 2025 27,623,004 19.827
Oct. 28, 2030 23,170,424 17.808
Nov. 4, 2035 24,424,248 17.050
Nov. 11, 2040 26,506,732 16.935
Nov. 19, 2045 28,223,159 17.269
Oct. 24, 2048 29,402,920 20.379
Oct. 27, 2053 23,667,616 18.246
Nov. 1, 2058 23,626,272 17.226
Nov. 9, 2063 25,647,995 16.918
Nov. 15, 2068 27,447,275 17.057
Nov. 23, 2073 29,792,051 17.827
Oct. 26, 2076 24,705,601 18.825
Oct. 31, 2081 23,234,929 17.377
Nov. 8, 2086 25,382,372 16.944
Nov. 16, 2091 27,372,719 17.039
Nov. 22, 2096 29,641,765 17.737
Oct. 26, 2099 25,123,260 19.004
Oct. 31, 2104 23,071,818 17.504
Nov. 6, 2109 24,812,930 16.976
Nov. 14, 2114 26,771,377 16.932
Nov. 21, 2119 28,485,507 17.315
Oct. 26, 2122 28,478,291 20.160
Oct. 29, 2127 23,145,137 18.022
Nov. 4, 2132 23,933,644 17.113
Nov. 12, 2137 26,276,569 16.932
Nov. 20, 2142 28,235,589 17.245
Oct. 26, 2145 29,187,349 20.399
Oct. 29, 2150 23,169,270 18.099
Nov. 4, 2155 23,806,532 17.132
Nov. 11, 2160 26,110,534 16.909
Nov. 18, 2165 27,910,687 17.106
Oct. 27, 2173 24,469,109 18.802
Nov. 1, 2178 23,018,901 17.436
Nov. 8, 2183 25,050,625 16.959
Nov. 15, 2188 27,160,073 16.990
Nov. 23, 2193 29,331,365 17.572
Oct. 27, 2196 25,632,098 19.310

Images and Observations

1989 VA's orbit is determined by observations dating back to Nov. 2, 1989. It was last officially observed on Nov. 4, 2019. The IAU Minor Planet Center records 786 observations used to determine its orbit.

Accessibility and Exploration

This asteroid is not considered a viable target for human exploration by the NHATS study.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 1989 VA:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 0.7284 AU
  • Eccentricity: 0.5947
  • Inclination: 28.8°
  • Longitude of Ascending Node: 225.6°
  • Argument of Periapsis: 2.85°
  • Mean Anomaly: 224.76°

Physical Characteristics

  • Diameter: 1.40000 km
  • Magnitude: 17.9
  • Spectral type (SMASS): Sq

Derived Characteristics

  • Orbit Period: 227 days (0.62 years)
  • Avg. Orbit Speed: 34.91 km/s
  • Aphelion Distance: 1.16 AU
  • Perihelion Distance: 0.30 AU
  • Rotation Period: 2.51 days
  • Approx. Composition: magnesium silicate and iron silicate.

Size Comparison

Orbit Simulation

Sky Map

The position of 99907 (1989 VA) 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.