Selected Asteroids

Here are several asteroids which have been visited by space probes.
We have included a image of each along with some physical and orbital constants.

Gaspra

Constants

•  Mean Radius:               5x5.5x9 km        

•  Mass:                      ? (Earth=1)       

•  Density:                   ? (g/cm^3)        

•  Gravity:                   ? (Earth=1)       

•  Orbit Period:              3.28 (Earth years)

•  Rotation Period:           ? (Earth days)    

•  Semimajor Axis of Orbit:   2.21 au           

•  Eccentricity of Orbit:     0.173             

Gaspra Nomenclature

Official names of features on Gaspra as approved by the International Astronomical Union.

Other Related Web Sites

The Galileo SSI Team has some neat pictures of Ida and its moon and also Gaspra images.

Toutatis

Constants

•  Mean Radius:               (4x6.5) km        

•  Mass:                      ? (Earth=1)       

•  Density:                   ? (g/cm^3)        

•  Gravity:                   ? (Earth=1)       

•  Orbit Period:              ~4.0 (Earth years)

•  Rotation Period:           ? (Earth days)    

•  Semimajor Axis of Orbit:   chaotic           

•  Eccentricity of Orbit:     chaotic           

Ida

Constants

•  Mean Radius:               (11x26) km        

•  Mass:                      ? (Earth=1)       

•  Density:                   ? (g/cm^3)        

•  Gravity:                   ? (Earth=1)       

•  Orbit Period:              4.84 (Earth years)

•  Rotation Period:           ? (Earth days)    

•  Semimajor Axis of Orbit:   2.86 au           

•  Eccentricity of Orbit:     0.042             

Ida Nomenclature

Official names of features on Ida as approved by the International Astronomical Union.

Other Related Web Sites

The Galileo SSI Team has some neat pictures of Ida and its moon and also Gaspra images.