The paper details the approach, sequence, and results of the in-orbit campaign for E/O data relay using the Tesat Laser Communication Terminals from a LEO spacecraft - Sentinel 1Aa part of the EU Copernicus program, to the TDP1 payload of Alphasat, Europe’s largest telecommunication satellite. After configuring the LCT´s on both spacecrafts to a standard operating mode in the first 2 month of the campaign, the next few months have been used for testing the capabilities of the systems. Links with transmit powers as low as 100mW over 42000km and links probing the upper atmosphere are examples of this test campaign. In addition, far field laser beam profile and tracking performance measurements have been performed, using the unique capability of the LCT on board of Alphasat to deliver 25kHz sampled data for all internal sensors (tracking and acquisition).


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Alphasat and sentinel 1A, the first 100 links




    Publication date :

    2015-10-01


    Size :

    2176336 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Optical Inter-Satellite Communication: the Alphasat and Sentinel-1A in-orbit experience

    Benzi, Edoardo / Troendle, Daniel C. / Shurmer, Ian et al. | AIAA | 2016


    Optical Inter-Satellite Communication: The Alphasat and Sentinel-1A In-orbit Experience (AIAA 2016-2389)

    Benzi, Edoardo / Troendle, Daniel C. / Shurmer, Ian et al. | British Library Conference Proceedings | 2016


    Alphasat I-XL Geomobile Mission Innovations

    Mallison, Mark / Roux, Michel | AIAA | 2008