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  • The TET-1 On-Orbit Verification Mission – Status and Future Opportunities

    Paper number



    Mr. Norbert M.K. Lemke, Kayser-Threde GmbH, Germany


    Mr. Stefan Foeckersperger, Kayser-Threde GmbH, Germany


    Dr. Peter Hofmann, Kayser-Threde GmbH, Germany


    Dr. Timo Stuffler, Kayser-Threde GmbH, Germany


    Mr. Silke Eckert, Astro- und Feinwerktechnik Adlershof GmbH, Germany


    Mr. Michael Turk, Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Germany


    Dr. Eckehard Lorenz, German Aerospace Center (DLR), Germany



    With the launch of the TET-1 spacecraft in July 2012 the German DLR Space Administration laid the ‎foundation for the successful On-Orbit Verification ‎‎(OOV) Program. TET-1 is the ‎first satellite of a ‎series of small satellites in the 100 kg class to serve the OOV program in order to support German ‎and European industry and research ‎institutes with the ‎in-orbit demonstration or verification of new ‎and innovative technologies.‎
    TET-1 was developed ‎by Kayser-Threde with its partner Astro- & Feinwerktechnik in a time of only 2.5 ‎years. After successful launch the LEOP was completed in one day and ‎the commissioning phase ‎commenced immediately thereafter. This was ‎when the crucial ‎Payload Supply System ‎‎(PSS) was ‎switched on and successfully tested. The different ‎experiments were then tested consecutively. Since ‎October 16, 2012 TET-1 is fully ‎operational and is undergoing the routine mission operations. During ‎this mission time of about one year the eleven experimental payloads on board are being ‎tested in ‎space.‎
    All eleven payloads of the first On-orbit Verification mission are operated successfully and ‎commanded by the ‎German Space Operations Center (GSOC). With the payload ‎data ‎downloaded ‎via ‎ground stations Neustrelitz and Weilheim and provided via secure ‎internet access to the ‎payload ‎provider, they can evaluate their experiments on TET-1.‎
    The paper provides information on the status of each of the eleven ‎payloads for the TET-1 mission ‎and on the bus and the flexible, modular Payload Supply System (PSS) of the spacecraft. The ‎paper ‎also summarizes the success of the on-going TET-1 mission with results already available from ‎this first OOV mission. The next OOV mission, TET-2, is currently studied in Phase B and also funded ‎by the German Space ‎Agency as a national program. A preliminary selection of the different payloads ‎has already been conducted.‎
    A description of further opportunities for the current and the ‎follow-on OOV missions as well as of the ‎TET small satellite series for different mission types will complete the paper.‎
    Abstract document


    Manuscript document

    IAC-13,B4,3,13,x19706.pdf (🔒 authorized access only).

    To get the manuscript, please contact IAF Secretariat.