2008 AS28

2008 AS28 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2008 AS28 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.

2008 AS28 orbits the sun every 1,380 days (3.78 years), coming as close as 0.65 AU and reaching as far as 4.20 AU from the sun. Its orbit is highly elliptical. Based on its brightness and the way it reflects light, 2008 AS28 is probably between 0.320 to 0.715 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, very roughly comparable in size to the U.S. Capitol building.

Close Approaches
2008 AS28's orbit is 0.07 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.

2008 AS28 has 4 close approaches predicted in the coming decades:

Images and Observations
2008 AS28's orbit is determined by observations dating back to Jan. 10, 2008. It was last officially observed on Dec. 26, 2011. The IAU Minor Planet Center records 87 observations used to determine its orbit.

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