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Kakioka K-index on 21
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 UT    K    Comments
00-02: 1    0: calm
03-05: 1    0: calm
06-08: 0    0: calm
09-11: 1    0: calm
12-14: 2    2: oscillation
15-17: 2    2: oscillation
18-20: 3    6: impulsive disturbances
21-23: 3    3: irregular disturbance
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K-sum: 13
K-max: 3
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MAGNE KA211 10122 33000 02263
REMARKS IMPULSIVE DISTURBANCE OCCURRED AT 1911