Key Facts


Rudra is a small asteroid with an orbit that crosses the orbit of Mars. NASA JPL has not classified Rudra as potentially hazardous because its orbit does not bring it close to Earth.

Rudra orbits the sun every 839 days (2.30 years), coming as close as 1.34 AU and reaching as far as 2.14 AU from the sun. Rudra is about 4.9 kilometers in diameter, making it larger than most asteroids, comparable in size to the San Francisco Bay.

The rotation of Rudra has been observed. It completes a rotation on its axis every 123.17 days.

Rudra's spectral type (Tholen) / B (SMASSII) indicates that it is likely to contain iron, hydrogen, ammonia, and nitrogen.

No Close Approaches

Rudra's orbit is 0.48 AU from Earth's orbit at its closest point. This means that there is an 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.

Images and Observations

Rudra's orbit is determined by observations dating back to Jan. 5, 1954. It was last officially observed on Aug. 21, 2019. The IAU Minor Planet Center records 958 observations used to determine its orbit.

Accessibility and Exploration

This asteroid is not considered a viable target for human exploration by the NHATS study.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of Rudra:



   or view a random object

Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 1.74040822536 AU
  • Eccentricity: 0.229207104647
  • Inclination: 23.4402865896°
  • Longitude of Ascending Node: 343.453710549°
  • Argument of Periapsis: 280.673769203°
  • Mean Anomaly: 358.293187248°

Physical Characteristics

  • Diameter: 4.88400 km
  • Magnitude: 15.0
  • Albedo: 0.066
  • Spectral type (SMASS): B

Derived Characteristics

  • Orbit Period: 839 days (2.30 years)
  • Avg. Orbit Speed: 22.58 km/s
  • Aphelion Distance: 2.14 AU
  • Perihelion Distance: 1.34 AU
  • Rotation Period: 123.17 days
  • Approx. Composition: iron, hydrogen, ammonia, and nitrogen.

Size Comparison

Orbit Simulation

Sky Map

The position of Rudra 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.