RESUMO

In March 1991 the CRRES spacecraft measured a new transient radiation belt resulting from a solar proton event and subsequent geomagnetic disturbance. The presence of this belt was also noted by dosimeter-radiometers aboard the Mir space station (approx. 400 km, 51 degrees orbit) and by particle telescopes on the NOAA-10 spacecraft (850 km, 98 degrees). This event provides a unique opportunity to compare particle flux and dose measurements made by different instruments in different orbits under changing conditions. We present here a comparison of the measurements made by the different detectors. We discuss the topology and dynamics of the transient radiation belt over a period of more than one year.

Assuntos

Prótons , Atividade Solar , Voo Espacial/instrumentação , Astronave/instrumentação , Oceano Atlântico , Planeta Terra , Elétrons , Meio Ambiente Extraterreno , Magnetismo , Doses de Radiação , Monitoramento de Radiação/instrumentação , Monitoramento de Radiação/métodos , Radiometria , América do Sul