We present a new empirical model to predict solar energetic particle (SEP) event-integrated and peak intensity spectra between 10 and 130 MeV at 1 AU, based on multi-point spacecraft measurements from the Solar TErrestrial RElations Observatory (STEREO), the Geostationary Operational Environmental Satellites (GOES), and the Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics (PAMELA) satellite experiment. The analyzed data sample includes 32 SEP events occurring between 2010 and 2014, with a statistically significant proton signal at energies in excess of a few tens of MeV, unambiguously recorded at three spacecraft locations. The spatial distributions of SEP intensities are reconstructed by assuming an energy-dependent 2D Gaussian functional form, and accounting for the correlation between the intensity and the speed of the parent coronal mass ejection (CME), and the magnetic-field-line connection angle. The CME measurements used are from the Space Weather Database Of Notifications, Knowledge, Information (DONKI). The model performance, including its extrapolations to lower/higher energies, is tested by comparing with the spectra of 20 SEP events not used to derive the model parameters. Despite the simplicity of the model, the observed and predicted event-integrated and peak intensities at Earth and at the STEREO spacecraft for these events show remarkable agreement, both in the spectral shapes and their absolute values.

我们提出了一个新的经验模型来预测太阳能量粒子（SEP）的事件积分和1 AU在10和130 MeV之间的峰值强度光谱，这是根据地球静止观测台（STEREO）的多点航天器测量结果得出的环境卫星（GOES）以及反物质探索和光核天体物理学的有效载荷（PAMELA）卫星实验。分析的数据样本包括2010年至2014年之间发生的32次SEP事件，在能量超过几十MeV时具有统计上显着的质子信号，明确记录在三个航天器位置。SEP强度的空间分布是通过假设能量依赖的2D高斯函数形式并考虑母体冠状物质喷射（CME）的强度和速度以及磁场线连接角之间的相关性来重建的。使用的CME度量来自通知，知识，信息的太空天气数据库（DONKI）。通过与未用于导出模型参数的20个SEP事件的频谱进行比较，测试了模型的性能（包括其向低/高能量的推断）。