2015 KW121

Key Facts

• Categorized as a Apollo-class Asteroid
• Comparable in size to a school bus or smaller
• Will pass within 9,547,909 km of Earth in 2020
• Classified as a Near Earth Asteroid (NEA)
• Not a Potentially Hazardous Object
• See orbit simulation

Overview

2015 KW121 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2015 KW121 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.

2015 KW121 orbits the sun every 456 days (1.25 years), coming as close as 0.55 AU and reaching as far as 1.76 AU from the sun. Based on its brightness and the way it reflects light, 2015 KW121 is probably between 0.016 to 0.036 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2015 KW121's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is very close to Earth's orbit.

2015 KW121 has 4 close approaches predicted in the coming decades:

Images and Observations

2015 KW121's orbit is determined by observations dating back to May 25, 2015. It was last officially observed on May 29, 2015. The IAU Minor Planet Center records 31 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 2015 KW121:

• 6239 Minos (1989 QF)
• 65733 (1993 PC)
• 90367 (2003 LC5)

References

• JPL Small Body Database
• Mission Design
• Sky Finder Chart

Orbit Simulation

Sky Map

The position of 2015 KW121 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.