Shiominemoto

Key Facts

• Categorized as a Mars-crossing Asteroid
• Comparable in size to the San Francisco Bay
• Not a Near Earth Object
• Not a Potentially Hazardous Object
• See orbit simulation

Overview

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

Shiominemoto orbits the sun every 941 days (2.58 years), coming as close as 1.66 AU and reaching as far as 2.10 AU from the sun. Based on its brightness and the way it reflects light, Shiominemoto is probably between 3.913 to 8.751 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the San Francisco Bay.

The rotation of Shiominemoto has been observed. It completes a rotation on its axis every 6.38 hours.

No Close Approaches

Shiominemoto's orbit is 0.73 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

Shiominemoto's orbit is determined by observations dating back to Nov. 8, 1993. It was last officially observed on June 21, 2023. The IAU Minor Planet Center records 2,438 observations used to determine its orbit.

Scientists have been able to determine this object's shape:

View asteroid Shiominemoto in 3D.

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 Shiominemoto:

• 1656 Suomi (1942 EC)
• 2035 Stearns (1973 SC)
• 2047 Smetana (1971 UA1)

References

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

Orbit Simulation

Sky Map

The position of Shiominemoto 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 Shiominemoto 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.