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April 2026
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Date
 
Space Environment Research Center, Kyushu University 
EDst1h (Realtime Ver.) 
Unit: nT 

April 2026 
 
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       5    3   -8   -8   -9  -12  -11   -8   -5   -5   -3    1    9   23   14    6    2   -2   -3   -4    1    5    9   10 
  2      17  -11  -32  -22  -29  -24  -24  -19  -38  -56  -43  -43  -95 -104  -82 -105  -98 -105  -50  -60  -39  -48  -58  -55 
  3     -52  -43  -28  -31  -40  -43  -35  -34  -29  -12  -15  -29  -40  -46  -44  -36  -26  -11  -40  -37  -59  -55  -56  -70 
  4     -65  -58  -73  -72  -66  -57  -45  -45  -41  -41  -39  -33  -17  -18  -16  -18  -18  -19  -22  -20  -12  -22  -19  -22 
  5     -21  -16  -17  -30  -44  -36  -30  -28  -24  -22  -16  -18  -14  -12  -20  -28  -16  -21  -18   -9  -10   -8   -6   -4 

  6      -2   -6   -8  -11  -13   -5  -10  -14  -14   -9   -5   -9  -10  -14  -12  -20  -20  -15   -3   -7   -4   -4   -9  -10 
  7      -9  -17   -9  -16  -18  -21  -20  -13   -7   -5   -3   -3    5    2    1   -4  -12   -3   -7   -9   -9  -10   -7   -9 
  8     -20  -24  -24  -20  -18  -12  -10   -9   -5   -5   -3   -8   -9  -17  -20  -25  -22  -12  -11  -12   -8  -14  -11  -13 
  9     -15  -15  -14  -11   -9   -9  -10   -7   -9   -6   -4   -3    5    2    2   -9  -22  -32  -36  -31  -28  -27  -26  -20 
 10     -24  -22  -25  -21  -19  -12   -1    3    3    4   11    9   12    3  -11  -27  -25  -11  -11   -1    2   -6   -4    1 

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

 16      12    9   10    8    7    2    5    5    9    9   11   12   16   12   10    8    7    6    4    2    4   10    9   11 
 17      13    9    7    6    4    4    6    5    5    4    6   15   23   24   23   18   16   15   13   12   16   23   20   16 
 18      15   18    3  -16  -37  -11  -49  -50  -65  -63  -71  -71 -101  -79  -61  -60  -56  -45  -42  -43  -43  -36  -34  -38 
 19     -46  -42  -45  -47  -55  -55  -42   -4  -29  -35  -34  -30  -26  -34  -33  -26  -22  -19  -11  -17  -23  -25  -22  -18 
 20     -19  -19  -18  -19  -19  -17  -18   -6   -3   -4  -22  -47  -67  -63  -53  -50  -43  -46  -28  -33  -17  -32  -38  -40 

 21     -60  -53  -48  -55  -64  -51  -24  -29  -28  -25  -19  -16  -23  -25  -35  -23  -32  -23  -23  -34  -28  -25  -24  -21 
 22     -21  -22  -19  -18  -19  -18  -16  -14  -10  -12  -11   -6   -2   -3   -7   -7   -6   -6   -4   -4   -6   -3   -1   -1 
 23      -5  -15  -19  -16  -21  -17  -13  -14  -11   -8   -5   -3   -2   -3   -3   -7  -11  -12  -10  -10   -6   -5   -2   -1 
 24      -4   -8   -7   -8   -8   -8   -7   -4    1    2    0   -3    1    2    0    0   -2    1    1    0  -10  -17  -17  -23 
 25     -45  -53  -33  -29  -24  -22  -19  -14  -11   -8   -7   -6   -1   -5   -5   -2   -4   -3   -1   -3    3    8   -8  -17 

 26     -29  -25  -18  -13  -22  -18  -12  -11   -5   -7  -18  -11   -9   -3   -6   -8  -10   -9   -6   -4    0   10    7    0 
 27     -13  -16  -12  -16  -16  -13   -9   -7   -3   -3   -3   -2    0    1    0   -3   -6   -5   -2    1    3    4    5    6 
 28       5    2    1    0   -4   -6   -4   -1    0    0    2    4    8    5    4    3    3    1    1    3    4    6    8   10 
 29      11    8    6    4    3    3    4    5    8    9    9   12   15   15   13   14   11    8    6    3    6   11   14   12 
 30      13    1   -4   -9   -7   -8   -6   -3    3    5    8    9    4  -15  -34  -33  -26  -24  -26  -25  -23  -18  -28  -40 




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

April 2026 
 
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      -2   -3   -5   -8   -9   -9   -8   -7   -5   -2    3    6    8    9    9    7    2    0    0    1    3    6    8   10 
  2      -5  -12  -18  -24  -25  -26  -32  -34  -37  -49  -63  -71  -79  -88  -98  -91  -83  -76  -67  -60  -52  -52  -50  -53 
  3     -44  -41  -39  -37  -35  -35  -32  -28  -26  -27  -29  -31  -35  -37  -34  -34  -32  -35  -38  -43  -53  -57  -61  -61 
  4     -66  -68  -65  -62  -60  -54  -49  -45  -41  -36  -31  -27  -23  -20  -18  -19  -19  -18  -19  -19  -20  -19  -19  -21 
  5     -21  -25  -28  -29  -31  -32  -31  -26  -23  -20  -18  -17  -18  -18  -18  -19  -19  -17  -14  -12   -9   -7   -6   -5 

  6      -6   -7   -8   -9  -10  -11  -11   -9  -10  -10  -10  -10  -12  -14  -15  -14  -13  -12   -9   -7   -6   -7   -7   -8 
  7     -12  -14  -15  -17  -16  -16  -14  -11   -8   -4   -2   -1    0   -2   -2   -4   -6   -7   -8   -8   -9  -11  -11  -12 
  8     -17  -19  -20  -18  -16  -12  -10   -8   -7   -7   -8  -10  -14  -17  -17  -18  -17  -15  -13  -11  -12  -12  -12  -13 
  9     -13  -13  -12  -11  -10   -9   -8   -7   -6   -4   -2   -1   -1   -4   -9  -16  -21  -26  -30  -30  -28  -26  -25  -24 
 10     -23  -22  -20  -16  -12   -8   -3    2    5    7    7    5    0   -6  -10  -13  -14  -12   -9   -5   -3   -1   -1   -2 

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

 16       9   10    8    7    6    6    6    7    9   10   12   12   11   11   10    8    6    5    6    6    7    8    9   11 
 17       9    8    7    6    5    5    5    5    7   10   13   16   18   20   20   18   16   15   16   16   17   17   18   19 
 18       9   -1   -5  -15  -27  -38  -46  -52  -62  -70  -75  -74  -74  -71  -67  -57  -51  -48  -44  -40  -39  -40  -39  -38 
 19     -42  -45  -48  -48  -41  -39  -37  -33  -29  -26  -31  -32  -31  -28  -27  -24  -21  -20  -20  -20  -19  -21  -21  -21 
 20     -19  -19  -19  -18  -16  -13  -11  -12  -17  -25  -35  -44  -50  -54  -54  -47  -42  -36  -33  -32  -31  -36  -37  -42 

 21     -49  -53  -55  -49  -45  -42  -37  -30  -24  -23  -23  -24  -24  -26  -27  -27  -28  -27  -27  -26  -26  -25  -24  -23 
 22     -21  -20  -20  -19  -17  -16  -15  -14  -11   -9   -7   -7   -6   -5   -5   -5   -6   -5   -5   -4   -3   -3   -3   -2 
 23     -10  -13  -16  -17  -17  -15  -14  -11   -9   -7   -5   -4   -4   -5   -6   -8   -9   -9   -9   -8   -6   -5   -4   -3 
 24      -5   -6   -7   -8   -7   -6   -4   -3   -2   -1    0    0    0    0    0    0    0   -2   -5   -7  -11  -18  -22  -25 
 25     -33  -34  -34  -30  -23  -20  -16  -13  -11   -8   -6   -5   -4   -4   -3   -3   -3   -2    0   -1   -3   -7   -8  -11 

 26     -18  -21  -21  -18  -16  -13  -12  -12  -11  -10   -9   -9   -9   -8   -8   -7   -7   -6   -3    0    1    0    1    2 
 27      -8  -12  -14  -14  -12  -11   -8   -6   -4   -3   -2   -1   -1   -2   -2   -2   -2   -2   -1    1    3    4    5    5 
 28       3    2    0   -2   -2   -2   -2   -1    0    2    3    4    4    5    4    3    3    3    3    4    5    7    8    8 
 29       8    7    6    5    4    4    5    6    8   10   12   12   13   14   13   11    9    8    8    8    9   10   11   12 
 30       4    1   -3   -5   -6   -5   -3    0    3    4    2   -4  -10  -16  -21  -26  -28  -26  -24  -24  -27  -30  -31  -33 





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