A satellite constellation formation system (100) forms a satellite constellation (20). The satellite constellation (20) is composed of satellite groups (300). The satellite constellation (20) is configured such that the satellite groups (300) cooperate to provide services. The satellite constellation (20) has a plurality of orbital planes (21), each of which has a plurality of satellites (30) flying at the same orbital altitude. A satellite constellation formation unit (110) forms the satellite constellation (20) in which the orbital heights of the plurality of orbital planes (21) are different from each other.
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