There is provided a technique for achieving inter-satellite optical communication for a satellite having a limited calculation capability. One aspect of the present disclosure relates to an earth station, including: a data acquisition unit that acquires a predicted orbit data sequence indicative of a predictive ephemeris of a satellite for a predetermined period, and a communication unit that transmits the acquired predicted orbit data sequence to a relay satellite, wherein the data acquisition unit acquires a first data sequence that is the predicted orbit data sequence having a first data amount and a second data sequence that is the predicted orbit data sequence having a second data amount smaller than the first data amount, and the communication unit transmits the first data sequence or the second data sequence as orbit information of a satellite to a relay satellite, the first data sequence or the second data sequence selected in accordance with predetermined selection criteria.
EARTH STATION, RELAY SATELLITE, SATELLITE SYSTEM AND COMMUNICATION METHOD
ERDSTATION, RELAISSATELLIT, SATELLITENSYSTEM UND KOMMUNIKATIONSVERFAHREN
STATION TERRESTRE, SATELLITE RELAIS, SYSTÈME SATELLITE ET PROCÉDÉ DE COMMUNICATION
2025-04-16
Patent
Electronic Resource
English
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