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.


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    Title :

    EARTH STATION, RELAY SATELLITE, SATELLITE SYSTEM AND COMMUNICATION METHOD


    Additional title:

    ERDSTATION, RELAISSATELLIT, SATELLITENSYSTEM UND KOMMUNIKATIONSVERFAHREN
    STATION TERRESTRE, SATELLITE RELAIS, SYSTÈME SATELLITE ET PROCÉDÉ DE COMMUNICATION


    Contributors:

    Publication date :

    2025-04-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS / H04B TRANSMISSION , Übertragung



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