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August 2025
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Date
 
Space Environment Research Center, Kyushu University 
EDst1h (Realtime Ver.) 
Unit: nT 

August 2025 
 
Universal Time 

DAY       0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23 

  1       0    1   -1    0   -9  -15   -7    2   -1   -5    1    5    4   -5   -5  -12   -8   -6   -1   -1   -1   -4   -5   -6 
  2      -6   -7  -13  -17  -20  -18  -17  -15  -11   -9   -7   -3   -1   -2   -2   -3   -1   -4   -4   -4   -6   -2   -8   -7 
  3      -5   -5   -8  -11  -10   -8  -11   -6   -4   -2    3    6    8    4    3    3    1   -6    1   -3   -3    0   -4   -3 
  4       0   -1   -3   -4   -5   -5   -7   -9   -8    3   -2   -7   -8   -9   -4   -3   -6  -12   -6   -5   -4   -8  -13  -14 
  5     -12  -20  -23  -13  -17  -11  -12  -11   -8   -4    0    2    1   -2   -1   -5   -5   -8   -5   -5   -6  -11  -13   -8 

  6      -7   -9   -5   -6   -6   -3   -8   -7   -5   -5   -3   -3    0   -1    0   -1   -3   -5   -4   -3   -3   -1    2   -1 
  7      -3   -3   -4   -5   -6   -6   -9   -8   -4   -4   -1    2    4    8    9    7    5    4    4    3    2    1    1    3 
  8       7    6    6    6    7    5    5    5    6    5   10    7  -14  -45  -38  -26  -46  -37  -36  -40  -23  -31  -35  -21 
  9     -21  -23  -48  -29  -66  -87  -97  -70  -51  -54  -63  -83 -101 -112 -106  -93  -92  -78  -64  -54  -50  -32  -36  -33 
 10     -40  -50  -50  -42  -39  -39  -40  -29  -16   -8  -34  -38  -62  -69  -61  -50  -51  -44  -35  -36  -40  -36  -33  -31 

 11     -34  -30  -34  -47  -44  -33  -26  -23  -30  -32  -22  -21  -21  -21  -27  -38  -38  -40  -31  -29  -28  -29  -20  -16 
 12     -25  -28  -43  -58  -57  -50  -33  -32  -26  -29  -28  -28  -32  -26  -26  -23  -27  -25  -24  -23  -23  -19  -21  -23 
 13     -23  -24  -26  -33  -38  -37  -17  -18  -25  -26  -23  -24  -23  -17  -19  -12  -21  -30  -22  -11  -21  -20  -16  -10 
 14     -18  -17  -34  -35  -33  -40  -45  -39  -37  -29  -17  -21  -24  -27  -28  -23  -19  -19  -15  -16  -18  -16  -16  -18 
 15     -13  -17  -15  -20  -31  -26  -22  -20  -26  -20  -10  -12   -9  -10  -12  -16  -18  -20  -19  -18  -12   -8   -9  -10 

 16      -5   -8   -7  -10   -9  -10  -14  -13  -11   -6   -2   -2   -3   -2   -5   -5   -5  -10  -14  -10   -6   -5   -6   -7 
 17      -7   -8  -10  -13  -17  -18  -19  -21  -16   -9   -6   -3   -1   -6  -13  -15  -10   -7   -5   -3    1    3    3    1 
 18       6    4    2   -1   -2   -4   -4   -3    0    1    5    7  -11  -30  -29  -22  -22  -21  -15   -5   -2    1    5   11 
 19      10   -3   -3   -2   -8  -14   -3   -1   -2   -5    4    1   -4    1    0   -6   -6   -5  -10   -2   -1   -3  -16  -19 
 20     -16  -26  -40  -48  -40  -38  -29  -17  -20  -15  -20  -15  -12  -13  -12  -12  -12  -10  -11  -10  -11  -18  -23  -25 

 21     -18  -17  -11  -19  -25  -22  -15  -12   -9   -9   -2    4    5    3    0   -1   -1   -2   -6   -8  -11   -9   -8   -3 
 22       1   -3  -22  -23  -19  -16  -11   -8   -8   -7   -4   -1    1    0    2    1   -2   -4   -3   -3   -3   -3   -4   -5 
 23      -7   -4   -2   -8  -16  -21   -5   -8   -8   -6   -3    0    1    1    2   -1   -2   -2   -1   -1   -2   -2   -2   -3 
 24      -3   -2   -1   -3  -10  -14  -10   -2    0    2    3    5    5    5    4    2    2    8    8    3    2    5    6    7 
 25       4    1   -4   -7   -3   -4   -1    2    3    4   11   16   19   18   13  -10  -18  -10   -5   -5   -8   -5   -4    0 

 26       1    0   -2   -6  -17  -28  -42  -32  -19  -14  -10  -11   -8   -2    0   -4   -6   -7   -7   -6   -3   -4   -6   -6 
 27      -5   -5   -5   -9  -11   -9   -6   -8   -7   -3   -1    5    8   -8  -16  -13   -4   -5   -4   -8   -9   -6   -3   -1 
 28      -3   -4   -6  -11  -10  -12  -14  -12   -8    2    1    3    5    4    2   -1   -3   -4   -2   -2   -4   -5   -4    0 
 29      -2   -4  -10  -12  -10   -8   -9   -8   -8   -7   -1    4    9    4    4    2    0    0   -3   -7  -11  -12   -5   -7 
 30      -8  -13  -17  -17  -16  -14  -13  -12  -15  -16  -11   -1    2   -2   -3   -1   -1   -4   -7   -5    0    1   -1   -2 

 31       7    5    8    2   -3   -2   -6   -2    0    1    7   12   13    5    6    6    4    1    1    1    4   -2   -5   -5 



 
Space Environment Research Center, Kyushu University 
EDst6h (Realtime Ver.) 
Unit: nT 

August 2025 
 
Universal Time 

DAY       0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23 

  1      -1   -2   -4   -5   -5   -5   -6   -4   -1    1    0   -1   -2   -4   -5   -6   -5   -5   -4   -3   -3   -4   -5   -5 
  2      -9  -12  -14  -16  -17  -16  -15  -13  -10   -8   -5   -4   -3   -2   -2   -3   -3   -4   -3   -5   -5   -5   -5   -5 
  3      -7   -8   -8   -9   -9   -8   -7   -5   -2    1    3    4    4    4    2    1    0   -1   -2   -2   -2   -2   -2   -2 
  4      -2   -3   -3   -4   -5   -6   -5   -5   -5   -5   -5   -5   -6   -6   -7   -7   -6   -6   -7   -8   -9  -10  -10  -12 
  5     -16  -17  -16  -16  -15  -12  -10   -8   -5   -3   -2   -1   -1   -2   -3   -4   -5   -6   -7   -8   -8   -8   -9  -10 

  6      -8   -7   -6   -6   -6   -6   -6   -5   -5   -4   -3   -2   -1   -1   -2   -2   -3   -3   -3   -2   -2   -2   -1   -1 
  7      -2   -4   -5   -5   -6   -6   -6   -5   -4   -2    1    3    5    6    6    6    5    4    3    3    2    3    3    3 
  8       5    6    6    6    6    6    5    6    6    3   -5  -12  -18  -27  -34  -38  -37  -35  -36  -34  -31  -29  -26  -27 
  9     -30  -35  -46  -58  -66  -66  -71  -70  -70  -70  -77  -87  -93  -98  -97  -91  -81  -72  -61  -52  -45  -41  -38  -35 
 10     -42  -42  -43  -43  -40  -34  -29  -28  -27  -31  -38  -45  -52  -55  -56  -52  -46  -43  -40  -37  -35  -35  -35  -34 

 11     -35  -37  -37  -36  -34  -34  -31  -28  -26  -25  -25  -24  -25  -28  -31  -33  -34  -34  -32  -29  -25  -24  -24  -22 
 12     -32  -38  -44  -45  -45  -43  -38  -33  -29  -29  -28  -28  -27  -27  -27  -25  -25  -24  -24  -22  -22  -22  -22  -21 
 13     -25  -28  -30  -29  -28  -28  -27  -24  -22  -23  -23  -22  -20  -20  -21  -20  -19  -20  -21  -20  -17  -16  -17  -16 
 14     -22  -25  -30  -34  -38  -38  -37  -35  -31  -28  -26  -24  -23  -24  -23  -22  -20  -18  -17  -17  -17  -16  -16  -16 
 15     -17  -19  -21  -22  -22  -24  -24  -21  -18  -16  -14  -12  -11  -13  -14  -16  -17  -17  -16  -14  -13  -11   -9   -8 

 16      -8   -8   -8  -10  -10  -11  -10   -9   -8   -6   -4   -3   -3   -4   -5   -7   -8   -8   -8   -8   -8   -7   -6   -6 
 17      -9  -10  -12  -14  -16  -17  -17  -15  -12   -9   -7   -6   -7   -8   -9   -9   -9   -7   -4   -1    0    2    3    3 
 18       2    2    1   -1   -2   -2   -2   -1    1    0   -5   -9  -13  -18  -22  -23  -19  -14  -11   -6   -1    3    5    6 
 19       3    0   -4   -6   -5   -5   -6   -4   -1   -1   -1   -1   -1   -2   -3   -4   -5   -5   -5   -6   -9   -9  -11  -13 
 20     -28  -32  -35  -37  -35  -32  -26  -23  -19  -16  -16  -14  -14  -13  -12  -12  -11  -11  -12  -14  -16  -18  -19  -21 

 21     -19  -19  -19  -18  -17  -17  -15  -12   -7   -4   -1    0    2    2    1   -1   -3   -5   -6   -7   -7   -7   -6   -5 
 22     -10  -12  -14  -15  -16  -14  -11   -9   -6   -5   -3   -2    0    0    0   -1   -1   -2   -3   -3   -3   -4   -4   -5 
 23      -5   -7  -10   -9  -10  -11  -11   -8   -5   -4   -2   -1    0    0    0   -1   -1   -2   -2   -2   -2   -2   -2   -2 
 24      -2   -4   -6   -7   -7   -7   -6   -4    0    2    3    4    4    4    4    5    5    4    5    5    5    5    5    6 
 25       1   -1   -2   -3   -3   -2    0    3    6    9   12   14   11    6    2   -2   -6   -9   -9   -6   -5   -4   -3   -2 

 26      -2   -4   -9  -16  -21  -24  -25  -24  -21  -16  -11   -7   -6   -5   -5   -4   -5   -6   -5   -5   -5   -5   -5   -5 
 27      -6   -7   -7   -7   -8   -8   -7   -6   -3   -1   -1   -3   -4   -5   -6   -8   -8   -7   -6   -6   -5   -5   -4   -3 
 28      -5   -6   -8   -9  -11  -11   -9   -7   -5   -1    1    3    3    2    1   -1   -2   -3   -3   -4   -3   -3   -3   -3 
 29      -6   -6   -8   -9  -10   -9   -8   -7   -5   -2    0    2    4    4    3    1   -1   -3   -5   -6   -7   -8   -9   -8 
 30     -11  -13  -14  -15  -15  -15  -15  -14  -11   -9   -7   -5   -2   -1   -1   -3   -3   -3   -3   -3   -2    0    1    1 

 31       3    3    3    1   -1   -2   -2   -1    2    5    6    7    8    8    6    4    3    3    2    0   -1   -1   -2   -3 




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