Robertgrimm is a large asteroid that orbits between Mars and Jupiter in the outer reaches of the main asteroid belt. NASA JPL has not classified Robertgrimm as potentially hazardous because its orbit does not bring it close to Earth.
Robertgrimm orbits the sun every 2,130 days (5.83 years), coming as close as 2.98 AU and reaching as far as 3.51 AU from the sun. Robertgrimm is about 20.3 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Indianapolis.
The rotation of Robertgrimm has been observed. It completes a rotation on its axis every 23.08 hours.
Robertgrimm's orbit is 1.99 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.
Robertgrimm's orbit is determined by observations dating back to Oct. 19, 1982. It was last officially observed on June 30, 2023. The IAU Minor Planet Center records 4,501 observations used to determine its orbit.
The position of Robertgrimm 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.