The Terabyte InfraRed Delivery (TBIRD) program will establish a communication link from a nanosatellite in low-Earth orbit to a ground station at burst rates up to 200 Gbps. The TBIRD payload is currently in the process of integrating with the 6-U CubeSat host bus and pre-flight testing has been completed. An overview of the pointing, acquisition, and tracking system for TBIRD is provided as well as a summary of results from pre-flight testing. TBIRD relies on the spacecraft bus to implement fine pointing corrections supplied by its quad sensor at a rate of 10 Hz. The measured accuracy of pointing feedback is about 10μrad RMS per axis. A custom optical assembly was designed for transmitter/receiver alignment stability which was measured to be within 25μrad two-axis through environmental testing. With TBIRD feedback in the loop, single axis pointing accuracy of the downlink is predicted to be about 30μrad RMS.


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    Titel :

    Pointing, Acquisition, and Tracking for the TBIRD Cubesat Mission: System Design and Pre-Flight Results


    Beteiligte:
    Kathleen M Riesing (Autor:in) / Curt M Schieler (Autor:in) / Joshua J Brown (Autor:in) / Jesse S Chang (Autor:in) / Noah C Gilbert (Autor:in) / Andrew J Horvath (Autor:in) / Lawrence J Petrilli (Autor:in) / Robert S Reeve (Autor:in) / Bryan S Robinson (Autor:in) / Joseph J Scozzafava (Autor:in)

    Kongress:

    SPIE Photonics West ; 2022 ; San Francisco, CA, US


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch