Space Radiation Environment Models and Data Used in Support of Manned Space Flight Operations

Details Space Radiation Environment Models and Data Used in Support of Manned Space Flight Operations Space Radiation Environment Models and Data Used in Support of Manned Space Flight Operations

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsh51b..11g&link_type=abstract

American Geophysical Union, Spring Meeting 2002, abstract #SH51B-11

Astronomy and Astrophysics

Astronomy

2720 Energetic Particles, Trapped, 2722 Forecasting, 2799 General Or Miscellaneous, 2104 Cosmic Rays, 2118 Energetic Particles, Solar

Scientific paper

Since the advent of manned space flight, space radiation environment and geomagnetospheric models have been routinely employed as key tools in the overall astronaut radiation safety effort. These models are employed to: quantify astronaut exposures prior to missions; provide information to mission planners to use to minimize crew exposures while planning missions; assess the impact of changes to mission timelines or space environment conditions on crew exposures during missions; and extrapolate available measurements to locations where measurements are unavailable. For these use scenarios, model output of long-term environment averages is inadequate-the tools and assessments need to capture the dynamics of the space radiation environment on scales ranging from a few hours to a full solar cycle. To make the models dynamic, either input parameters or output are adjusted or scaled using real-time space weather data, available for the most part from the joint NOAA-Air Force Space Weather Operations Center. Space weather parameters employed to adjust these models include the POESS trapped belt index, KP, DST, Climax neutron monitor count-rate, daily F10.7 flux, and GOES MEPAD/HEPAD proton flux data. Background information is provided on the impact of space weather to astronaut radiation safety, along with details of operational data, models, tools, products, and dissemination methods employed by NASA's space radiation safety flight team.

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