Sodankylä   MAXIMUM TIME DERIVATIVE (0.01 nT/sec) OF HORIZONTAL COMPONENT (X,Y)
 
Time (UT)	    01...03       04...06       07...09       10...12       13...15       16...18       19...21       22...24 
 
2021 12  1	  37  38  32    60  31  43    27  42  32    30  34  26    52  34  22    36  58  22    98 145 192   116  28  88 
2021 12  2	  30   9   6     4   6   4    16  32  19    12   9   8     5   8   8    22  17  17    43  20  36    29  12  10 
2021 12  3	   8   3   6     6   3  13     2   8   9    12   5  11     7  10  22    48  23  27    55  35 183    20   6   7 
2021 12  4	  14  36  27    18  12   7     7  15  11    14  17  15    10   8   7     4   5   6     4  28   9     3  10   8