On February 18th, 2021, the Mars 2020 entry vehicle delivered the Perseverance rover to the surface of Mars. The entry vehicle carried a set of instrumentation installed on the heatshield and backshell to measure aerodynamic and aerothermal performance, named the Mars Entry, Descent, and Landing Instrumentation 2. This set of instrumentation included pressure transducers, thermocouples, heatflux sensors, and a radiometer, as well as a dedicated sensor support electronics system. All MEDLI2 hardware operated as expected during cruise and entry. MEDLI2 sensors gathered accurate pressure measurements in hypersonic through supersonic regimes to reconstruct vehicle attitude and atmospheric profiles. MEDLI2 on the heatshield sensors indicated that surface temperatures, caused by turbulent heating beginning 70 seconds after entry, remained at or below 1430 °C, while heatshield bondline temperatures rose less than 45 °C. Backshell surface TPS temperatures peaked at 630 °C, which was caused primarily by radiative heating measured by several separate sensors. The MEDLI2 temperature and pressure measurements enabled further detailed characterization of the Mars 2020 entry performance, and the flight dataset will provide a wealth of information for the EDL community and future mission designers.


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    Titel :

    Mars Entry Instrumentation Flight Data and Mars 2020 Entry Environments


    Beteiligte:
    Todd White (Autor:in) / Milad Mahzari (Autor:in) / Chun Tang (Autor:in) / Josh Monk (Autor:in) / Jose Santos (Autor:in) / Ruth Anne Miller (Autor:in) / Chris Karlgaard (Autor:in) / Hannah Alpert (Autor:in) / Henry Wright (Autor:in) / Chris Kuhl (Autor:in)

    Kongress:

    AIAA SciTech 2022 ; 2022 ; San Diego, CA, US


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Mars Entry Instrumentation Flight Data and Mars 2020 Entry Environments

    White, Todd R. / Mahzari, Milad / Miller, Ruth A. et al. | AIAA | 2022


    Mars Entry Instrumentation Flight Data and Mars 2020 Entry Environments

    Todd R White / Milad Mahzari / Ruth A Miller et al. | NTRS | 2022


    Mars Entry Instrumentation Flight Data and Mars 2020 Entry Environments

    T. R. White / M. Mahzari / R. A. Miller et al. | NTIS | 2022


    Mars 2020 Entry, Descent and Landing Instrumentation (MEDLI2)

    Bose, Deepak / Wright, Henry / White, Todd et al. | NTRS | 2016


    Mars 2020 Entry, Descent and Landing Instrumentation (MEDLI2)

    Bose D. / Wright H. / White T. et al. | NTIS | 2016