Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge (0.70 km diameter)
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation


35396 (1997 XF11) is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1997 XF11 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

1997 XF11 orbits the sun every 633 days (1.73 years), coming as close as 0.74 AU and reaching as far as 2.14 AU from the sun. 1997 XF11 is about 0.7 kilometers in diameter, making it larger than ~97% of asteroids but small compared to large asteroids, comparable in size to the Golden Gate Bridge.

The rotation of 1997 XF11 has been observed. It completes a rotation on its axis every 3.26 hours.

1997 XF11's spectral type None (Tholen) / Xk (SMASSII) indicates that it is likely to contain iron, nickel, and cobalt.

No Close Approaches

1997 XF11's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is very close to Earth's orbit.

Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.

Images and Observations

1997 XF11's orbit is determined by observations dating back to March 22, 1990. It was last officially observed on June 12, 2021. The IAU Minor Planet Center records 1,917 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 1997 XF11:



   or view a random object

Orbital Elements

  • Epoch: 2459396.5 JD
  • Semi-major axis: 1.443 AU
  • Eccentricity: 0.484
  • Inclination: 4.1°
  • Longitude of Ascending Node: 213.73°
  • Argument of Periapsis: 102.95°
  • Mean Anomaly: 307.0°

Physical Characteristics

  • Diameter: 0.70400 km
  • Magnitude: 16.9
  • Albedo: 0.772
  • Spectral type (SMASS): Xk

Derived Characteristics

  • Orbit Period: 633 days (1.73 years)
  • Avg. Orbit Speed: 24.80 km/s
  • Aphelion Distance: 2.14 AU
  • Perihelion Distance: 0.74 AU
  • Rotation Period: 3.26 hours
  • Approx. Composition: iron, nickel, and cobalt.

Map Comparison

Click to load map

Orbit Simulation

Sky Map

The position of 35396 (1997 XF11) 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.

Size Rendering

The above comparison is an artistic rendering that uses available data on the diameter of 1997 XF11 to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.