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Kakioka K-index on 18
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 UT    K    Comments
00-03: 1    0: calm
03-06: 2    2: oscillation
06-09: 5    3: irregular disturbance
09-12: 6    5: bay disturbance
12-15: 4    3: irregular disturbance
15-18: 3    3: irregular disturbance
18-21: 2    2: oscillation
21-24: 1    0: calm
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K-sum: 24
K-max: 6
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MAGNE KA181 25643 21023 53320
REMARKS MAGNETIC STORM OCCURRED GRADUALLY AT ABOUT 07// AND ENDED AT ABOUT 
20// AND RANGE OF H WAS ABOUT 97 NANOTESLAS. NEGATIVE BAY OCCURRED FROM 0919 
TO 1054 AND RANGE OF H WAS ABOUT 31 NANOTESLAS.