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(The data for this month in the wdc-like format is here.)

                                      WDC for Geomagnetism, Kyoto
                                Hourly Equatorial Dst Values (FINAL)      
                                          SEPTEMBER   2019
      unit=nT                                                                                      UT
      1   2   3   4   5   6   7   8    9  10  11  12  13  14  15  16   17  18  19  20  21  22  23  24
DAY
 1  -43 -40 -36 -33 -38 -50 -57 -53  -45 -37 -47 -44 -40 -43 -43 -48  -44 -45 -45 -52 -59 -52 -46 -46
 2  -54 -55 -45 -39 -40 -40 -42 -35  -34 -32 -28 -31 -30 -30 -30 -33  -34 -37 -42 -44 -44 -39 -34 -30
 3  -26 -26 -24 -26 -27 -27 -25 -29  -30 -27 -24 -25 -27 -28 -30 -30  -30 -28 -26 -29 -29 -30 -30 -29
 4  -26 -25 -21 -21 -21 -21 -24 -23  -26 -33 -29 -26 -26 -25 -24 -23  -18 -20 -30 -29 -27 -30 -31 -27
 5  -25 -28 -36 -43 -45 -51 -46 -43  -38 -35 -34 -28 -28 -24 -27 -27  -25 -20 -22 -25 -27 -25 -27 -25

 6  -21 -16 -14 -16 -22 -23 -20 -23  -24 -26 -28 -29 -29 -27 -25 -26  -25 -26 -31 -31 -30 -26 -24 -24
 7  -20 -19 -17 -17 -16 -14 -16 -17  -14 -14 -17 -22 -25 -25 -23 -22  -21 -23 -20 -17 -20 -19 -18 -18
 8  -20 -20 -17 -13 -13 -18 -23 -25  -27 -26 -26 -22 -23 -25 -26 -27  -27 -26 -22 -23 -30 -35 -30 -34
 9  -38 -36 -31 -28 -23 -25 -24 -21  -18 -16 -22 -31 -32 -30 -28 -26  -23 -28 -34 -32 -32 -33 -36 -34
10  -30 -26 -23 -21 -20 -22 -18 -14  -13 -14 -15 -16 -18 -26 -24 -22  -21 -22 -23 -25 -27 -28 -25 -24

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

16  -15 -15 -16 -18 -16 -14  -9  -5   -5  -6  -9 -11 -14 -14 -11 -14  -15 -16 -11  -7  -8  -8 -10 -10
17  -12  -7  -3   3   2   0  -2  -4   -2  -3  -6  -7  -9 -13 -14 -14  -13 -14  -7  -9  -8 -13 -17 -19
18  -18 -19 -19 -17 -15 -15 -13 -14  -16 -12  -8 -10 -16 -18 -17 -16  -17 -15 -14 -12 -12 -14 -16 -15
19  -16 -15 -15 -12 -11 -11 -11 -11   -8  -6  -7  -9  -8 -10 -10  -9   -9  -5  -4  -8  -8 -10 -12 -10
20   -7  -4  -6  -8  -8 -10  -9  -9   -8  -7  -7  -9 -10  -9  -9  -6   -3  -5  -4  -5  -3  -3  -4  -3

21    0   1  -1   0   0   0   3   2   -6 -14 -20 -20 -17 -15 -15 -17  -18 -14 -14 -15 -19 -21 -22 -24
22  -24 -23 -22 -21 -20 -14 -10  -6   -5  -4  -1   1   0  -1  -2   0   -1   3   3   1  -1  -2  -5  -7
23   -6  -6  -5  -5  -4  -4  -5  -6   -2  -2  -1  -3  -1  -2  -5  -7  -11 -14 -10  -6  -4  -1  -2   0
24   -4  -5  -7 -14 -23 -28 -33 -33  -29 -20 -17 -15 -17 -10  -7   0    0  -1  -2   2   0  -6  -7  -8
25   -6  -2  -2  -6  -7 -11 -14 -13  -12 -13 -11 -12 -14 -13 -10  -7   -5  -5  -5  -6  -6  -8  -6  -5

26   -6  -8  -6  -4  -6  -7  -6  -8   -9  -9 -10 -10  -9 -10  -8  -7   -7  -7  -7  -7  -7  -6  -6  -3
27   -2  -1  -3  -5  -5  -4   9   8    8  12  19  12   2  -6 -10 -17  -17 -13 -19 -20 -35 -47 -56 -56
28  -47 -41 -41 -41 -44 -42 -41 -42  -40 -34 -33 -27 -25 -31 -33 -29  -26 -23 -18 -22 -27 -28 -27 -27
29  -26 -26 -29 -30 -30 -33 -33 -28  -24 -23 -21 -21 -19 -19 -20 -19  -15 -21 -21 -22 -24 -24 -29 -37
30  -37 -38 -41 -43 -39 -36 -36 -38  -35 -35 -33 -29 -32 -36 -35 -33  -27 -20 -12 -11 -13 -16 -19 -16