Raissa is a large asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Raissa as potentially hazardous because its orbit does not bring it close to Earth.
Raissa orbits the sun every 1,380 days (3.78 years), coming as close as 2.19 AU and reaching as far as 2.66 AU from the sun. Raissa is about 19.4 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Denver.
The rotation of Raissa has been observed. It completes a rotation on its axis every 142.79 hours.
Raissa's orbit is 1.19 AU from Earth's orbit at its closest point. This means that there is an extremely 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.
Raissa's orbit is determined by observations dating back to Dec. 19, 1903. It was last officially observed on July 5, 2023. The IAU Minor Planet Center records 3,820 observations used to determine its orbit.
Scientists have been able to determine this object's shape:
View asteroid Raissa in 3D.
The position of Raissa 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.