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Kakioka K-index on 31
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 UT    K    Comments
00-03: 3    7: SC
03-06: 3    3: irregular disturbance
06-09: 4    9: main phase
09-12: 4    9: main phase
12-15: 6    9: main phase
15-18: 5    3: irregular disturbance
18-21: 5    3: irregular disturbance
21-24: 5    3: irregular disturbance
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K-sum: 35
K-max: 6
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MAGNE KA313 34465 55739 99333
REMARKS MAGNETIC STORM OCCURRED SUDDENLY AT 0049 AND CONTINUES NOW AND SO 
FAR RANGE OF H WAS ABOUT 100 NANOTESLAS