Riga is a large asteroid that orbits between Mars and Jupiter in the outer reaches of the main asteroid belt. NASA JPL has not classified Riga as potentially hazardous because its orbit does not bring it close to Earth.
Riga orbits the sun every 2,250 days (6.16 years), coming as close as 3.17 AU and reaching as far as 3.54 AU from the sun. Riga is about 68.2 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the U.S. state of Rhode Island.
The rotation of Riga has been observed. It completes a rotation on its axis every 22.23 hours.
Riga's spectral type XFCU (Tholen) / Cb (SMASSII) indicates that it is likely to contain water, iron, nickel, cobalt, nitrogen, and ammonia.
Riga's orbit is 2.18 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.
Riga's orbit is determined by observations dating back to Oct. 13, 1950. It was last officially observed on July 4, 2023. The IAU Minor Planet Center records 5,266 observations used to determine its orbit.
The position of Riga 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.