Fig. A.1
MIRO instrument positioned at point M with a FOV with half width at half maximum angle, θ. The gray cone is the portion of the spherical nucleus formed from the limits of visibility from point P. The magenta cone is the segment due to the projected MIRO FOV. The distances and angles in this graphic are not to scale. The ratio of solid angles that these cones subtend is given in Eq. (A.2).
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