Nurmijärvi  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	   7   5   6     9   4   8     8   8   8     7   7   7     9   8  10    11  12   8     9  15  11    14   5   5 
2021 12  2	   3   2   2     2   2   2     4   9   4     5   2   2     2   3   3     5   4   3     6   3   6     5   2   2 
2021 12  3	   3   1   2     3   1   5     1   3   4     7   2   5     4   5   4     5   5   8    21   6  26     4   2   2 
2021 12  4	   3   5   3     4   5   3     3   5   2     4   5   4     3   3   3     2   3   2     2  10   4     2   4   3