2007 HA

Very small Aten-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Aten-class Asteroids » 2007 HA

Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a football field
  • Will pass within 19,300,682 km of Earth in 2023
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

2007 HA is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2007 HA as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2007 HA orbits the sun every 308 days (0.84 years), coming as close as 0.47 AU and reaching as far as 1.31 AU from the sun. Based on its brightness and the way it reflects light, 2007 HA is probably between 0.223 to 0.499 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a football field.

The rotation of 2007 HA has been observed. It completes a rotation on its axis every 4.65 hours.

Close Approaches

2007 HA'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.

2007 HA has 16 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
April 19, 2023 19,300,682 18.430
April 15, 2034 11,333,835 22.343
April 17, 2050 5,780,634 20.016
April 12, 2061 23,475,394 24.314
April 18, 2066 26,829,724 17.752
April 16, 2077 2,817,125 20.917
April 18, 2093 12,425,130 19.167
April 14, 2104 20,704,699 23.838
April 19, 2109 27,429,561 17.696
April 17, 2120 5,887,025 21.457
April 18, 2136 4,343,137 20.222
April 13, 2147 29,666,984 25.348
April 19, 2152 19,090,120 18.431
April 16, 2163 13,522,943 22.644
April 19, 2179 2,763,169 20.569
April 20, 2195 18,631,449 18.471

Images and Observations

2007 HA's orbit is determined by observations dating back to April 16, 2007. It was last officially observed on April 25, 2023. The IAU Minor Planet Center records 566 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 2007 HA:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.8926 AU
  • Eccentricity: 0.4702
  • Inclination: 32.99°
  • Longitude of Ascending Node: 205.79°
  • Argument of Periapsis: 133.16°
  • Mean Anomaly: 82.68°

Physical Characteristics

  • Diameter: ~0.288 km
  • Magnitude: 20.38

Derived Characteristics

  • Orbit Period: 308 days (0.84 years)
  • Avg. Orbit Speed: 31.53 km/s
  • Aphelion Distance: 1.31 AU
  • Perihelion Distance: 0.47 AU
  • Rotation Period: 4.65 hours

Map Comparison

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Orbit Simulation

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Sky Map

The position of 2007 HA 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 2007 HA 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.