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                                      WDC for Geomagnetism, Kyoto
                                Hourly Equatorial Dst Values (FINAL)      
                                           DECEMBER   1999
      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   12  10   8   4   5   6   5   5    7   6   7   6   8   6   5   5   -3  -2   3   4  -2   1   4   6
 2    7  11  16  15  11  12  14  12   13  13  10  14  18  21  16  15   16  15  16  12  11  11   6   3
 3    2   3  -1   3   3   6   4   2    2  10   8  -9 -11  -7  -9 -15  -28 -25 -19 -13 -20 -18 -15 -10
 4   -8  -7   4  -2 -11  -3  -7 -17  -10 -13 -18 -22 -17 -21 -24 -30  -31 -33 -27 -30 -30 -27 -29 -35
 5  -27 -20 -23 -28 -27 -34 -38 -31  -27 -24 -26 -23 -26 -25 -22 -21  -22 -22 -21 -20 -18 -20 -19 -19

 6  -12  -7  -5 -20 -24 -22 -16 -16  -23 -22 -18 -17 -17 -17 -25 -26  -22 -24 -30 -26 -19 -15 -13 -13
 7  -13 -11 -12 -14 -14 -15 -13 -14  -10  -8 -11 -13 -11 -10  -8 -12  -12 -18 -18 -16 -19 -20 -22 -18
 8  -17 -14 -15 -13 -12 -10 -13 -13  -13 -14 -17 -15 -16 -13 -10  -8  -10 -15 -18 -22 -24 -23 -20 -25
 9  -27 -18 -14 -18 -26 -21 -19 -18  -19 -21 -26 -18 -18 -17 -13 -12  -14 -15 -12 -17 -14 -11 -19 -22
10  -18 -13 -12 -13 -14 -15 -17 -13   -9 -10 -11  -9 -11 -16 -15 -14  -12 -17 -17 -15 -19 -17 -17 -22

11  -19 -12  -7  -7  -9  -7  -2  -5  -10 -15 -14 -16  -9  -6 -11 -14  -11 -11 -13 -13 -14 -14 -14 -14
12  -12  -6  -4  -8 -11 -12 -11 -13  -15 -17 -19 -13 -13 -11 -16 -14   -8  -9  -8 -14 -17 -19 -21 -25
13  -26 -21 -20 -22 -29 -35 -44 -51  -72 -85 -78 -62 -62 -58 -64 -65  -65 -54 -45 -34 -30 -25 -29 -32
14  -33 -29 -24 -23 -25 -22 -23 -24  -25 -24 -26 -28 -28 -30 -28 -24  -22 -17 -13 -12 -19 -16 -15 -17
15  -17 -15 -12 -12 -11  -6  -2   4    5   4   0  -2  -6  -6  -2   0    0  -1  -1   0   3  -2  -9 -11

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

21    6   8   7   7   8   8   6   6    7   7   8  10  12  10  10  10    9   8   9  10   9   8   8  10
22   10  13  11   8  10  13  16  16   14  13  11   8   8   8   9   9    7   6   4   2   5   7   9  10
23   12  13  14  14  14  16  19  21   24  26  28  29  31  35  35  30   31  27  27  31  31  26  22  21
24   24  21  26  24  19  13   8  11   14   7   9  16  14  13  13  15   14  14  13  13  13  10   3  -3
25   -1   1   6   8   4  -3  -5  -6   -8  -6  -5   0   1   1  -8  -5    0   4   1   1   3   3   4  -2

26   -1  -2  -1   0   0   2   2   2    3   4   6   6   4   4   7   8    8  10   5   4   3   6   5   6
27    2  -8  -5   7  14  14  10  13   12  11  11   2  -2   0   2   4    1  -1  -4  -4  -5  -4  -4  -6
28   -7  -7  -4  -3  -3   0   5   9   12  11  11   7   4   2   0  -1    2   5   3   4   4  -7 -14 -15
29  -17 -24 -27 -27 -15  -8  -4  -1    5   9   6   5   6   6   5   4    5   3   1  -1  -1  -4  -8  -7
30   -5  -2  -1   0  -1   2   4   8    7  10   8  10  12  14  20  23   25  28  28  24  18   6   6   7

31    0   3  -6  -8  -8 -13 -12 -17  -17 -17 -16 -13 -10 -22 -17 -12  -16 -24 -29 -32 -37 -34 -37 -50