Fig. 4
From: MEGANE investigations of Phobos and the Small Body Mapping Tool
A NEAR-GRS-measured gamma-ray rate versus altitude. Altitude is measured from the spacecraft to the sub-nadir point on asteroid 433 Eros. B NEAR-GRS-measured versus predicted gamma-ray count rates. Predicted values were derived using a shape model of Eros and Eq. 5. The red-dashed line highlights the linear relationship between the measurements and predictions, validating the approach for calculating gamma-ray fluxes from shape models