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February 2023
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Date
 
Space Environment Research Center, Kyushu University 
EDst1h (Realtime Ver.) 
Unit: nT 

February 2023 
 
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     -11  -18  -19  -16  -14  -17  -17  -16  -16  -18  -17  -11   -6   -5   -4   -2    0    5    7    3  -12  -17  -15  -24 
  2     -30  -39  -40  -35  -28  -25  -22  -22  -18  -18  -19  -19  -17  -16  -14  -13  -14  -14  -13  -13  -13  -12  -10  -10 
  3      -3   -7  -13  -16  -15  -14  -10   -6   -5   -6   -5   -1    5    6    1   -5  -14  -17   -5  -23  -29  -22  -17  -13 
  4     -10  -26  -28  -25  -20  -20  -23  -22  -19  -18  -19  -19  -15  -18  -25  -29  -25  -18  -13  -12  -11   -8   -6   -6 
  5     -10  -11  -12  -13   -8   -3   -3   -1   -2   -3    5    3    4    2   -1   -2   -3   -5    0    0    3    5    9   14 

  6      11    2  -13  -15  -15  -13  -11  -11   -7  -11  -38  -36  -23  -21  -23  -24  -24  -22  -19  -15  -12   -9  -21  -21 
  7     -33  -43  -38  -34  -38  -36  -34  -27  -29  -29  -34  -40  -45  -43  -33  -38  -44  -39  -23  -29  -28  -26  -24  -27 
  8     -27  -31  -36  -33  -26  -28  -25  -25  -23  -23  -21  -18  -32  -30  -40  -38  -29  -24  -16  -19  -22  -15  -13  -21 
  9     -26  -44  -41  -37  -29  -27  -30  -26  -27  -29  -25  -26  -28  -34  -32  -28  -21  -21  -21  -19  -15  -22  -41  -45 
 10     -30  -42  -60  -71  -62  -53  -47  -38  -34  -32  -27  -29  -26  -32  -42  -28  -27  -29  -26  -16  -14  -22  -25  -28 

 11     -36  -29  -28  -31  -29  -29  -22  -18  -19  -27  -36  -42  -37  -27  -27  -26  -24  -22  -19  -17  -17  -13  -11  -11 
 12      -8  -16  -20  -22  -22  -22  -25  -27  -27  -21  -22  -22  -14  -14  -14  -19  -24  -20  -15  -16  -11  -14  -15  -15 
 13      -9  -11  -10  -11  -12  -13  -14  -11  -10  -13  -13  -12   -8    0   -2   -5   -1    3    2    2   -2    0   -2   -1 
 14       8    1    6    3   -5   -3   -4   -5  -10   -9  -17  -17  -10  -11  -15  -13  -13  -11   -7  -10   -7   -6   -7  -11 
 15      -4  -31  -27  -28  -14  -14  -25  -38  -41  -41  -44  -68  -99 -103 -108 -107  -71  -90  -88  -77  -71  -74  -78  -80 

 16     -60  -43  -30  -29  -26  -28  -49  -53  -47  -46  -43  -54  -58  -47  -67  -77  -60  -61  -54  -49  -45  -38  -31  -31 
 17     -28  -31  -33  -36  -44  -41  -34  -34  -34  -38  -36  -27  -23  -24  -26  -27  -26  -25  -24  -23  -20  -16  -14  -17 
 18      -7  -15  -19  -19  -17  -21  -17  -17  -17  -20  -17  -11   -3   -4   -7   -9   -9   -9   -9  -10   -7   -8   -7   -7 
 19      -8  -19  -17  -18  -20  -20  -19  -16  -14  -12  -11  -11  -14  -11  -13  -15  -24  -20  -12  -10  -13  -12   -9   -5 
 20      -1   -8  -11  -12  -10  -10  -10  -11   -5   -3    0    6   13    7    8    2   -5   -6  -12   -9  -11   -4   -1   -4 

 21       8   -4  -15  -20  -17  -18  -19  -23  -27  -40  -51  -58  -80  -67  -47  -40  -39  -34  -29  -25  -21  -19  -17  -16 
 22      -9  -18  -22  -22  -22  -23  -23  -20  -17  -17  -11   -9  -11  -24  -24  -25  -25  -13  -12  -14  -17  -17  -12  -10 
 23       2   -9  -29  -31  -21  -23  -30  -26  -25  -23  -22  -27  -34  -27  -25  -22  -18  -35  -23  -11  -16  -24  -28  -19 
 24     -10  -15  -13  -13  -15  -13  -14  -12  -11  -13   -7   -5   -3  -11  -14  -14  -13  -12  -10   -8   -8   -5   -7  -10 
 25      -6  -10  -12  -10  -13  -14  -13  -13   -5  -10  -11  -12   -9   -8    8    0  -12   -4  -21  -33  -29  -33  -30  -20 

 26     -24  -26  -25  -21  -20  -12  -11   -6    2   -7  -14  -22  -28  -26  -14  -15  -18   -9   -4   -2   12  -13  -48  -74 
 27     -73  -61  -84  -95  -83  -63  -80  -87  -81  -50  -90 -107 -163 -175 -138 -110  -95  -81 -121  -84  -82  -91  -99  -89 
 28     -99  -81 -104  -89  -77  -65  -67  -72  -70  -63  -62  -68  -59  -55  -45  -41  -39  -39  -40  -35  -25  -38  -40  -34 



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

February 2023 
 
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     -16  -15  -16  -17  -17  -16  -16  -17  -16  -14  -12  -10   -7   -5   -2    0    1    0   -2   -5   -9  -15  -19  -21 
  2     -30  -33  -33  -32  -29  -25  -22  -21  -20  -19  -18  -17  -16  -15  -14  -14  -13  -13  -13  -13  -12  -11  -10   -9 
  3     -10  -11  -12  -13  -12  -11   -9   -8   -6   -3   -1    0    0   -1   -4   -6  -10  -16  -18  -19  -18  -19  -18  -15 
  4     -20  -21  -22  -24  -23  -21  -20  -20  -20  -18  -18  -19  -21  -22  -22  -21  -20  -18  -14  -11   -9   -9   -8   -7 
  5     -10  -10  -10   -8   -7   -5   -4   -2   -1    1    1    2    1    1   -1   -2   -2   -1    0    2    5    7    8   10 

  6       1   -3   -8  -11  -13  -12  -11  -13  -17  -20  -22  -25  -26  -25  -23  -22  -21  -20  -17  -17  -16  -18  -19  -20 
  7     -32  -34  -37  -37  -35  -33  -32  -32  -32  -34  -37  -37  -39  -40  -40  -37  -34  -33  -31  -28  -26  -27  -26  -26 
  8     -30  -30  -30  -30  -29  -27  -25  -24  -23  -24  -24  -27  -30  -31  -32  -29  -28  -25  -21  -18  -18  -19  -19  -18 
  9     -30  -33  -34  -35  -32  -29  -28  -27  -27  -27  -28  -29  -29  -28  -27  -26  -24  -21  -20  -23  -27  -28  -31  -35 
 10     -49  -52  -54  -56  -55  -51  -44  -38  -35  -31  -30  -31  -31  -31  -31  -31  -28  -23  -22  -22  -22  -23  -24  -27 

 11     -29  -30  -30  -28  -26  -25  -24  -25  -27  -30  -31  -33  -32  -30  -27  -24  -23  -21  -19  -17  -15  -13  -12  -11 
 12     -15  -17  -19  -21  -23  -24  -24  -24  -24  -22  -20  -18  -17  -18  -18  -18  -18  -18  -17  -15  -14  -13  -13  -13 
 13     -12  -11  -11  -12  -12  -12  -12  -12  -12  -11   -9   -8   -7   -5   -2   -1    0    0    0    0    0    0    0    1 
 14       2    2    1    0   -1   -4   -6   -8  -10  -11  -12  -13  -14  -13  -12  -12  -11  -10   -9   -8   -8   -7   -7   -7 
 15     -18  -20  -20  -23  -24  -27  -29  -34  -43  -55  -65  -72  -85  -91  -95  -93  -88  -84  -79  -80  -78  -74  -73  -74 

 16     -53  -44  -35  -34  -36  -39  -41  -44  -49  -50  -49  -53  -58  -60  -62  -61  -61  -58  -51  -46  -41  -37  -35  -32 
 17     -32  -34  -36  -36  -37  -37  -37  -36  -34  -32  -30  -29  -27  -25  -25  -25  -25  -24  -22  -20  -19  -17  -15  -14 
 18     -16  -16  -17  -18  -18  -18  -18  -18  -17  -14  -12  -10   -8   -7   -7   -8   -9   -9   -9   -8   -8   -8   -7   -8 
 19     -13  -15  -17  -19  -18  -18  -17  -15  -14  -13  -12  -12  -12  -15  -16  -16  -16  -16  -15  -13  -10   -9   -8   -7 
 20      -8   -8   -9  -10  -11  -10   -8   -6   -4    0    3    5    6    5    3   -1   -4   -7   -8   -7   -7   -4   -3   -1 

 21      -7   -9  -12  -16  -19  -21  -24  -30  -36  -47  -54  -57  -57  -55  -51  -43  -36  -31  -28  -24  -21  -18  -17  -16 
 22     -18  -18  -20  -22  -22  -21  -20  -19  -16  -14  -15  -16  -17  -20  -20  -20  -19  -17  -16  -14  -14  -12  -11  -10 
 23     -16  -17  -19  -24  -27  -26  -25  -25  -26  -26  -26  -26  -26  -25  -27  -25  -22  -21  -21  -23  -20  -18  -20  -21 
 24     -16  -14  -13  -14  -13  -13  -13  -12  -10   -8   -8   -9   -9  -10  -11  -12  -12  -11   -9   -8   -8   -7   -7   -7 
 25      -9  -10  -11  -12  -12  -11  -11  -11  -10  -10   -9   -7   -5   -5   -4   -6  -10  -16  -22  -25  -28  -28  -27  -26 

 26     -24  -23  -21  -19  -16  -11   -9   -8  -10  -13  -16  -19  -20  -20  -18  -14  -10   -6   -6  -11  -21  -33  -42  -58 
 27     -72  -78  -76  -77  -82  -81  -74  -75  -82  -90 -102 -113 -125 -126 -121 -117 -105  -95  -92  -93  -94  -91  -90  -94 
 28     -94  -90  -86  -81  -79  -74  -69  -67  -67  -66  -63  -59  -55  -51  -47  -43  -40  -37  -36  -36  -35  -35  -35  -38 




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