The Advanced Composition Explorer (ACE) and the Ulysses spacecraft follow radically different trajectories, allowing the Sun to be simultaneously studied from 2 different perspectives. Data from the low energy particle instruments carried by these spacecraft reveals energetic particles accelerated at the Sun can access large angular extents of the interplanetary medium. We look at a rare case when the heliographic transport of energetic electrons was apparently prevented and speculate upon the ability of the corona to inhibit the propagation of these particles.
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