Comparison Between the Observation of the Particle Detector Inside ‘ZY‐1' Satellite and the Model of the Radiation Belt

Abstract

AbstractThe observations of the particle detector inside ‘ZY‐1' (CBERS‐1) satellite are compared with the radiation belt models (AE8/AP8). It is found that the measurements in SAA(Southern Atlantic Anomaly) are in accord with the predictions by the models, while the measured electron flux is much lower than the prediction by the AE8 model in the regions of southern and northern aurora belts. According to the observations of NOAA satellite, this difference is considered to be caused by the difference of the particle pitch angle distributions in SAA and the regions of the aurora belts. The particle's flux in SAA is inclined to be isotropic, while in the regions of the aurora belts it is obviously anisotropic where the particles distributed near 90° pitch angle are much larger than that distributed near 0° Pitch angle.