43008 (1999 UD31)

Key Facts

• Categorized as a Main-belt Asteroid
• Comparable in size to Mount Everest
• Not a Near Earth Object
• Not a Potentially Hazardous Object
• See orbit simulation

Overview

43008 (1999 UD31) is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified 1999 UD31 as potentially hazardous because its orbit does not bring it close to Earth.

1999 UD31 orbits the sun every 1,310 days (3.59 years), coming as close as 1.91 AU and reaching as far as 2.79 AU from the sun. Based on its brightness and the way it reflects light, 1999 UD31 is probably between 1.805 to 4.037 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to Mount Everest.

The rotation of 1999 UD31 has been observed. It completes a rotation on its axis every 2.64 hours.

No Close Approaches

1999 UD31's orbit is 0.89 AU from Earth's orbit at its closest point. This means that there is a very wide berth between this asteroid and Earth at all times.

Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.

Images and Observations

1999 UD31's orbit is determined by observations dating back to Dec. 12, 1996. It was last officially observed on June 8, 2023. The IAU Minor Planet Center records 1,488 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 1999 UD31:

• 27 Euterpe (A853 VA)
• 169 Zelia (A876 SB)
• 219 Thusnelda (A880 SA)

References

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

Orbit Simulation

Sky Map

The position of 43008 (1999 UD31) 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 above comparison is an artistic rendering that uses available data on the diameter of 1999 UD31 to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.