Abstract
An examination of Pioneer Venus Orbiter fluxgate magnetometer data has shown that magnetic field overshoots occur not only behind quasi-perpendicular bow shocks but also behind quasi-parallel shocks. Oveshoots are associated only with supercritical shocks. Their amplitudes increase with increasing fast Mach number. Solar wind β has a lesser effect. The thickness of the overshoot increases with decreasing Θ BN. The thickness of apparent “overshoots” detected behind 4 strong fast interplanetary shocks (M>M crit) is about 3 orders of magnitude larger. Multiple crossings of the Venus bow shock were observed mainly at turbulent shocks. Their occurance is not influenced by Θ BN.
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