Spacecraft in low Earth orbit (LEO) are subjected to harsh environmental conditions, including radiation (cosmic rays, ultraviolet (UV), x-ray and charged particle radiation), micrometeoroids and orbital debris, temperature extremes, thermal cycling, and atomic oxygen (AO). These environmental exposures can result in erosion, embrittlement and optical property degradation of susceptible materials threatening spacecraft performance and durability. To increase our understanding of effects such as AO erosion and radiation induced embrittlement of spacecraft materials, NASA Glenn Research Center has developed a series of experiments that were flown as part of the Materials International Space Station Experiment (MISSE) missions on the exterior of the International Space Station (ISS). These experiments have provided critical space environmental durability data such as AO erosion data of polymers and composites, and radiation induced mechanical property degradation of spacecraft insulation materials, after long term space exposure. Recently, four Glenn experiments with 365 flight samples were flown on ISS’s MISSE-Flight Facility (MISSE-FF). These experiments are the Polymers and Composites Experiment-1 (PCE-1) flown as part of the MISSE-9 mission, the PCE-2 flown as part of the MISSE-10 mission, the PCE-3 flown as part of the MISSE-12 and MISSE-15 missions, and the PCE-4 flown as part of the MISSE-13 mission. This paper provides details on the space environment exposure of Glenn’s PCE 1-4 flight samples. Passive samples were flown in each flight orientation for post-flight AO fluence determination and on-orbit contamination analyses. Solar exposure estimates were computed by Aegis Aerospace, Inc. The environment exposure details include the total space vacuum duration, time on the MISSE-FF, the direct space exposure duration, the AO fluence and the computed mission Equivalent Sun Hours (ESH) solar exposure. Typical on-orbit temperatures are also provided along with a summary of analyses of PCE 1-4 contamination witness samples. Knowledge of the space environmental exposure of the PCE 1-4 flight samples is crucial for flight data interpretation.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Space Environmental Exposure of the MISSE 9-15 Polymers and Composites Experiment 1-4 (PCE 1-4)


    Beteiligte:
    K. K. D. Groh (Autor:in) / B. A. Banks (Autor:in)

    Erscheinungsdatum :

    2024


    Format / Umfang :

    90 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    MISSE PEACE Polymers - An International Space Station environmental exposure experiment

    Kaminski, Carolyn / Marx, Laura / Wright, Douglas et al. | AIAA | 2001


    Analyses of the Misse Peace Polymers International Space Station Environmental Exposure Experiment

    de Groh, K. / Banks, B. / McCarthy, C. et al. | British Library Conference Proceedings | 2006


    AIAA-2001-4923 MISSE PEACE Polymers: An International Space Station Environmental Exposure Experiment

    de Groh, K. / Banks, B. / Hammerstrom, A. et al. | British Library Conference Proceedings | 2001


    MISSE 5 Thin Films Space Exposure Experiment

    Harvey, Gale A. / Kinard, William H. / Jones, James L. | NTRS | 2007


    MISSE 5 Thin Films Space Exposure Experiment

    Harvey, Gale / Kinard, William / Jones, James | AIAA | 2007