12689 (1988 RO2) is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified 1988 RO2 as potentially hazardous because its orbit does not bring it close to Earth.
1988 RO2 orbits the sun every 1,920 days (5.26 years), coming as close as 2.68 AU and reaching as far as 3.36 AU from the sun. Based on its brightness and the way it reflects light, 1988 RO2 is probably between 5.502 to 12.304 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the San Francisco Bay.
1988 RO2's orbit is 1.70 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.
1988 RO2's orbit is determined by observations dating back to Sept. 8, 1988. It was last officially observed on May 26, 2023. The IAU Minor Planet Center records 2,122 observations used to determine its orbit.
The position of 12689 (1988 RO2) 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.