19668 (1999 RB145) is a large asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified 1999 RB145 as potentially hazardous because its orbit does not bring it close to Earth.
1999 RB145 orbits the sun every 2,010 days (5.50 years), coming as close as 2.50 AU and reaching as far as 3.75 AU from the sun. 1999 RB145 is about 14.1 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Cleveland, Ohio.
The rotation of 1999 RB145 has been observed. It completes a rotation on its axis every 170.50 hours.
1999 RB145's orbit is 1.60 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.
1999 RB145's orbit is determined by observations dating back to Aug. 19, 1988. It was last officially observed on May 15, 2023. The IAU Minor Planet Center records 2,445 observations used to determine its orbit.
The position of 19668 (1999 RB145) 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.