Grieve is a large asteroid with an orbit that crosses the orbit of Mars. NASA JPL has not classified Grieve as potentially hazardous because its orbit does not bring it close to Earth.
Grieve orbits the sun every 1,530 days (4.19 years), coming as close as 1.60 AU and reaching as far as 3.60 AU from the sun. Based on its brightness and the way it reflects light, Grieve is probably between 9.967 to 22.286 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the city of Cleveland, Ohio.
The rotation of Grieve has been observed. It completes a rotation on its axis every 6.86 hours.
Grieve's spectral type None (Tholen) / S (SMASSII) indicates that it is likely to contain and .
Grieve's orbit is 0.77 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.
Grieve's orbit is determined by observations dating back to May 24, 1954. It was last officially observed on March 13, 2023. The IAU Minor Planet Center records 3,108 observations used to determine its orbit.
The position of Grieve 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.