等离子实验研究 Measures the velocity and distribution of the solar wind plasma.
磁闸式磁强计Measures the field strength and direction of low frequency magnetic fields in the Sun’s environment.
探察圈磁强计 Compliments the Flux-Gate Magnetometer by measuring the magnetic fields between 0 and 3 kHz.
等离子波研究
宇宙辐射研究Measures protons, electrons and x-rays to determine the distribution of cosmic rays.
低能电子和离子光谱仪 Investigates the higher energy portion of the crossover region between the solar wind particles and the cosmic rays.
黄道光光度计Measures the scattering of sunlight by interplanetary dust particles.
微流星分析仪 Investigates the composition, charge, mass, velocity and direction of interplanetary dust particles.