Orbit design for future SpaceChip swarm missions in a planetary atmosphere |
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| Affiliation: | 1. Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo, 125-8585, Japan;2. Computational Astrophysics Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan;1. Aerospace Research Institute and Sharif University of Technology, Tehran, 14665 834, Iran;2. Center for Research and Development in Space Science and Technology, Sharif University of Technology, Tehran, 145888 9694, Iran;3. Aerospace Research Institute, Ministry of Science, Research and Technology, Tehran, 14665 834, Iran;1. Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China;2. University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The effect of solar radiation pressure and atmospheric drag on the orbital dynamics of satellites-on-a-chip (SpaceChips) is exploited to design equatorial long-lived orbits about the oblate Earth. The orbit energy gain due to asymmetric solar radiation pressure, considering the Earth's shadow, is used to balance the energy loss due to atmospheric drag. Future missions for a swarm of SpaceChips are proposed, where a number of small devices are released from a conventional spacecraft to perform spatially distributed measurements of the conditions in the ionosphere and exosphere. It is shown that the orbit lifetime can be extended and indeed selected through solar radiation pressure and the end-of-life re-entry of the swarm can be ensured, by exploiting atmospheric drag. |
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