1999 RB215 is a large asteroid whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 1999 RB215 as potentially hazardous because its orbit does not bring it close to Earth.
1999 RB215 orbits the sun every 122,000 days (334.02 years), coming as close as 31.46 AU and reaching as far as 64.78 AU from the sun. Based on its brightness and the way it reflects light, 1999 RB215 is probably between 35.039 to 78.350 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. state of Rhode Island.
1999 RB215's orbit is 30.50 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 RB215's orbit is determined by observations dating back to Sept. 6, 1999. It was last officially observed on Oct. 26, 2011. The IAU Minor Planet Center records 23 observations used to determine its orbit.
The position of 1999 RB215 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.