Levy G S, Sato T, Seidel B L, Stelzried C T, Ohlson J E, Rusch W V
Science. 1969 Oct 31;166(3905):596-8. doi: 10.1126/science.166.3905.596.
Pioneer 6, which was launched into orbit around the sun on 16 December 1965, was occulted by the sun in the last half of November 1968. During the period in which the spacecraft was occulted by the solar corona, the S-band telemetry carrier underwent Faraday rotation as a result of this anisotropic plasma. The NASA-Jet Propulsion Laboratory 210-foot (64-meter) antenna of the Deep Space Network at Barstow, California, which was equipped with an automatic polarization tracking system, was used to measure this effect. Three large-scale transient phenomena were observed. The measurement of these phenomena indicated that Faraday rotation on the order of 40 degrees occurred. The duration of each phenomenon was approximately 2 hours. These phenomena appear to be correlated with observations of solar radio bursts with wavelengths in the dekametric region.
“先驱者6号”于1965年12月16日发射进入绕太阳的轨道，在1968年11月下旬被太阳掩星。在航天器被日冕掩星的期间，由于这种各向异性等离子体，S波段遥测载波经历了法拉第旋转。位于加利福尼亚州巴斯托的深空网络的美国国家航空航天局喷气推进实验室210英尺（64米）天线，配备有自动极化跟踪系统，被用于测量这种效应。观测到了三种大规模瞬变现象。对这些现象的测量表明发生了约40度的法拉第旋转。每种现象的持续时间约为2小时。这些现象似乎与波长在十米区域的太阳射电爆发的观测结果相关。
