433 Eros Surface Gravitational Properties

James Richardson

Based upon

• Rotation period = 5.27 hrs (from NEAR Science Team)
• Homogeneous density = 2.64 g/cc (from NEAR Science Team)
• 1 degree resolution Eros shape model (from NEAR Science Team)
• Polyhedron gravity calculation method (developed by Werner, 1994)

• 90 deg N Latitude Viewpoint
• 90 deg S Latitude Viewpoint
• 0 deg W Longitude Viewpoint
• 90 deg W Longitude Viewpoint
• 180 deg W Longitude Viewpoint
• 270 deg W Longitude Viewpoint

• The Himeros / Shoemaker Region
• Selected Large Impact Craters

Gravitational Acceleration

Gravitational Potential

Dynamical Topography (with topo-lines) Height = (U - U_mean) / g_local U_mean = -53.3 J/kg Topography range = 2.86 km

Gravitational Slope

Gravitational Acceleration

Gravitational Potential

Dynamical Topography (with topo-lines) Height = (U - U_mean) / g_local U_mean = -53.3 J/kg Topography range = 2.86 km

Gravitational Slope

Gravitational Acceleration

Gravitational Potential

Dynamical Topography (with topo-lines) Height = (U - U_mean) / g_local U_mean = -53.3 J/kg Topography range = 2.86 km

Gravitational Slope

Gravitational Acceleration

Gravitational Potential

Dynamical Topography (with topo-lines) Height = (U - U_mean) / g_local U_mean = -53.3 J/kg Topography range = 2.86 km

Gravitational Slope

Gravitational Acceleration

Gravitational Potential

Dynamical Topography (with topo-lines) Height = (U - U_mean) / g_local U_mean = -53.3 J/kg Topography range = 2.86 km

Gravitational Slope

Gravitational Acceleration

Gravitational Potential

Dynamical Topography (with topo-lines) Height = (U - U_mean) / g_local U_mean = -53.3 J/kg Topography range = 2.86 km

Gravitational Slope

NEAR Spacecraft View

Basic Shape Model View

Gravitational Acceleration Horizontal Component: Vector Representation

Gravitational Acceleration

Gravitational Potential

Dynamical Topography (with topo-lines) Height = (U - U_mean) / g_local U_mean = -53.3 J/kg Topography range = 2.86 km

Dynamical Topography with Horizontal Gravity Vector Representation

Gravitational Slope

0 W, 55 N Elevations (far view)

0 W, 55 N Gravitational Slopes

0 W, 55 N Elevations, Horizontal Gravity

6 W, 18 N Elevations (far view)

6 W, 18 N Gravitational Slopes

6 W, 18 N Elevations, Horizontal Gravity

13 W, 12 S Elevations (far view)

13 W, 12 S Gravitational Slopes

13 W, 12 S Elevations, Horizontal Gravity

90 W, 10 N Elevations (far view)

90 W, 10 N Gravitational Slopes

90 W, 10 N Elevations, Horizontal Gravity

197 W, 35 S Elevations (far view)

197 W, 35 S Gravitational Slopes

197 W, 35 S Elevations, Horizontal Gravity

209 W, 16 N Elevations (far view)

209 W, 16 N Gravitational Slopes

209 W, 16 N Elevations, Horizontal Gravity

230 W, 9 N Elevations (far view)

230 W, 9 N Gravitational Slopes

230 W, 9 N Elevations, Horizontal Gravity