  The terrestrial magnetopause is the boundary that shields the Earth's
magnetosphere on one side from the shocked solar wind and its embedded
interplanetary magnetic field on the other side. In this paper, we show
observations from two of the Time History of Events and Macroscales
Interactions during Substorms (THEMIS) satellites, comparing dayside
magnetopause crossings with flank crossings near the terminator. Macroscopic
properties such as current sheet thickness, motion, and current density are
examined for a large number of magnetopause crossings. The results show that
the flank magnetopause is typically thicker than the dayside magnetopause and
has a lower current density. Consistent with earlier results from Cluster
observations, we also find a persistent dawn-dusk asymmetry with a thicker and
more dynamic magnetopause at dawn than at dusk.
