162991 (2001 SY69)

Key Facts

• Categorized as a Mars-crossing Asteroid
• Comparable in size to the U.S. Pentagon
• Not a Near Earth Object
• Not a Potentially Hazardous Object
• See orbit simulation

Overview

162991 (2001 SY69) is a mid-sized asteroid with an orbit that crosses the orbit of Mars. NASA JPL has not classified 2001 SY69 as potentially hazardous because its orbit does not bring it close to Earth.

2001 SY69 orbits the sun every 1,140 days (3.12 years), coming as close as 1.65 AU and reaching as far as 2.61 AU from the sun. Based on its brightness and the way it reflects light, 2001 SY69 is probably between 1.155 to 2.582 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. Pentagon.

No Close Approaches

2001 SY69's orbit is 0.66 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

2001 SY69's orbit is determined by observations dating back to Sept. 17, 2001. It was last officially observed on May 29, 2022. The IAU Minor Planet Center records 649 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 2001 SY69:

• 1706 Dieckvoss (1931 TS)
• 2335 James (1974 UB)
• 3402 Wisdom (1981 PB)

References

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

Orbit Simulation

Sky Map

The position of 162991 (2001 SY69) 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 2001 SY69 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.