Viewing geometry during the two Herschel observing epochs at phase angles of roughly 60° before (left) and after opposition (right). Top: calculated observing geometry on the basis of the nominal solution in Pravec et al. (2014). L is the fixed vector of angular momentum, the Aries sign is the x-axis of the ecliptical frame, S is the direction to the Sun, and x,y,z are the axes of the asteroid co-rotating coordinate frame (corresponding to the lowest, intermediate, and the highest moment of inertia of the body). Middle: the solar insolation in [W/m²]. Bottom: TPM temperature calculations assuming an Itokawa-like thermal inertia of 600 Jm^-2 s^-0.5 K^-1.