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Fig. 7
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Geomagnetic indices and magnetic recordings in the format of Figure 4 for 00 to 12 UT on 13 March 1989. The times and amplitudes of SSCs at 01:27 UT (60 nT) and 07:43 UT (11 nT) are indicated by the positions and sizes of downward triangular marks in the ASY-H field.
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