Figure 1From: Investigating the particle precipitation of a moving cusp aurora using simultaneous observations from the ground and spaceA 630.0 nm dayside all-sky image taken at 08:26:52 UT on 17 December 2012. The all-sky image is projected onto an Earth-centered sphere at a height of 250 km with the geomagnetic coordinate system shown in the background. Black arrows indicate three auroral structures: A, B, and C.Back to article page