The Station Explorer for X-ray Timing and Navigation Technology (SEXTANT) is a technology demonstration enhancement to the Neutron-star Interior Composition Explorer (NICER) mission. NICER is a NASA Explorer Mission of Opportunity that will be hosted on the International Space Station (ISS). SEXTANT will, for the first time, demonstrate real-time, on-board X-ray Pulsar Navigation (XNAV), a significant milestone in the quest to establish a GPS-like navigation capability available throughout our Solar System and beyond. This paper gives an overview of the SEXTANT system architecture and describes progress prior to environmental testing of the NICER flight instrument. It provides descriptions and development status of the SEXTANT flight software and ground system, as well as detailed description and results from the flight software functional and performance testing within the high-fidelity Goddard Space Flight Center (GSFC) X-ray Navigation Laboratory Testbed (GXLT) software and hardware simulation environment. Hardware-in-the-loop simulation results are presented, using the engineering model of the NICER timing electronics and the GXLT pulsar simulator-the GXLT precisely controls NASA GSFC's unique Modulated X-ray Source to produce X-rays that make the NICER detector electronics appear as if they were aboard the ISS viewing a sequence of millisecond pulsars


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    SEXTANT X-Ray Pulsar Navigation Demonstration: Flight System and Test Results


    Beteiligte:
    L. Winternitz (Autor:in) / J. W. Mitchell (Autor:in) / K. C. Gendreau (Autor:in) / M. A. Hassouneh (Autor:in) / J. E. Valdez (Autor:in) / S. R. Price (Autor:in) / S. R. Semper (Autor:in) / W. H. Yu (Autor:in) / P. S. Ray (Autor:in) / K. S. Wood (Autor:in)

    Erscheinungsdatum :

    2016


    Format / Umfang :

    19 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    SEXTANT X-Ray Pulsar Navigation Demonstration: Flight System and Test Results

    Winternitz, Luke M. B. / Mitchell, Jason W. / Hassouneh, Munther A. et al. | NTRS | 2016


    SEXTANT X-Ray Pulsar Navigation Demonstration: Flight System and Test Results

    L. M. B. Winternitz / J. W. Mitchell / K. C. Gendreau et al. | NTIS | 2016


    SEXTANT X-Ray Pulsar Navigation Demonstration: Flight System and Test Results

    Winternitz, Luke / Mitchell, Jason W. / Hassouneh, Munther A. et al. | NTRS | 2016


    SEXTANT X-ray Pulsar Navigation demonstration: Flight system and test results

    Winternitz, Luke M. B. / Mitchell, Jason W. / Hassouneh, Munther A. et al. | IEEE | 2016


    Sextant X-Ray Pulsar Navigation Demonstration: Initial On-Orbit Results

    Mitchell, Jason W. / Winternitz, Luke M. / Hassouneh, Munther A. et al. | NTRS | 2018