Fig. 1From: First sequential images of the plasmasphere from the meridian perspective observed by KAGUYASchematic diagram of the geometry among the Earth, Moon, and the KAGUYA spacecraft. TEX starts to observe under the conditions that (1) KAGUYA is in sight of the Earth, (2) KAGUYA is in the umbra of the Moon, and (3) the umbra period is longer than 15 min.Back to article page