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Development of a Bowtie Inversion Technique for Real‐Time Processing of the GOES‐16/‐17 SEISS MPS‐HI Electron Channels
Space Weather ( IF 4.288 ) Pub Date : 2020-04-13 , DOI: 10.1029/2019sw002403
A. Boudouridis 1, 2 , J.V. Rodriguez 1, 2 , B.T. Kress 1, 2 , B.K. Dichter 3 , T.G. Onsager 4
Affiliation  

The Space Environment In‐Situ Suite on the Geostationary Operational Environmental Satellite (GOES)‐R series of satellites includes a new instrument for measuring radiation belt electrons and protons, the Magnetospheric Particle Sensor–High Energy (MPS‐HI). The MPS‐HI electron channels cover the energy range 50 keV to 4 MeV. The conversion of raw MPS‐HI electron telescope counts to fluxes is based on the so‐called bowtie technique. The goal of the bowtie analysis is to calculate for each energy channel an energy/geometric factor pair applicable to a wide range of energy spectra and for which the geometric factor error is minimized. Rather than using idealized analytical spectral functions, we use observed high‐resolution spectra from the cross‐calibrated Combined Release and Radiation Effects Satellite (CRRES) Medium Electron Sensor A and High Energy Electron Fluxmeter data set from the period 1990–1991, restricted to 6 < L < 8. One thousand randomly selected CRRES spectra are used to perform the bowtie analysis and determine the MPS‐HI channel energy/geometric factor characteristics. The results are used to convert the GOES‐16/‐17 MPS‐HI electron counts to fluxes. The same bowtie technique is used to calculate effective energies and geometric factors for the GOES‐13/‐14 Magnetospheric Electron Detector ME1‐ME5 (30–600 keV) electron channels. We compare the fluxes from the various spacecraft (GOES‐16/‐13, GOES‐17/‐14, and GOES‐16/‐17) over periods of several months to determine the applicability and utility of the bowtie analysis. Finally, we compare the GOES‐16/‐13 fluxes during 22 days of near conjunction. All comparisons show good agreement among the various satellite data sets.

中文翻译:

开发用于实时处理GOES-16 / -17 SEISS MPS-HI电子通道的Bowtie反演技术

对地静止业务环境卫星(GOES)-R系列卫星上的空间环境原位套件包括一种用于测量辐射带电子和质子的新仪器,即磁层粒子传感器-高能(MPS-HI)。MPS-HI电子通道的能量范围为50 keV至4 MeV。原始MPS-HI电子望远镜的计数转换为通量是基于所谓的领结技术。领结分析的目的是为每个能量通道计算一个适用于广泛能谱且几何因子误差最小的能量/几何因子对。与其使用理想的分析光谱函数, L  <8。使用一千个随机选择的CRRES光谱进行领结分析并确定MPS-HI通道能量/几何因子特征。结果用于将GOES‐16 / ‐17 MPS‐HI电子计数转换为通量。相同的领结技术用于计算GOES-13 / -14磁层电子探测器ME1-ME5(30-600 keV)电子通道的有效能量和几何因子。我们在几个月的时间内比较了各种航天器(GOES-16 / -13,GOES-17 / -14和GOES-16 / -17)的通量,以确定领结分析的适用性和实用性。最后,我们比较了22天近交期间的GOES-16 / -13通量。所有比较都表明各种卫星数据集之间具有良好的一致性。
更新日期:2020-04-13
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