Near-Earth Asteroid Scout Flight Mission Figure 3. NEA Scout concept of operations and mission phases. overwhelmed by the effect of solar radiation pressure, allowing the mass of objects that are tens or hundreds of meters in size to be determined by all platforms. This is especially true in the case of NEA Scout because of the large solar sail and the pool of potential targets limited to objects < 100 m. Figure 4. Strategic knowledge gaps of interest to human exploration and contribution of NEA Scout (expected performance). 22 IEEE A&E SYSTEMS MAGAZINE MARCH 2020