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Earth, Planets and Space
Fig. 2 | Earth, Planets and Space

Fig. 2

From: Science operation plan of Phobos and Deimos from the MMX spacecraft

Fig. 2

Observational orbits around Phobos. a Five QSOs are drawn in the Phobos fixed frame with Phobos at the center, in which the xy plane is the Phobos orbital plane and the negative x axis direction is the direction to Mars. Phobos—Mars direction is fixed so that Phobos does not rotate in the figure, because of the tidal locking. Characteristics of each QSO are shown in Table 1. b 3D-QSO with xy dimension of 50 km × 100 km and height from the equatorial plane of Phobos of z =  ± 20 km. c The same 3D-QSO viewed from z direction

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