Mekrijärvi  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   6   7    10   5   7     7   8   9     8   6   7    10  13  13    15  21  11    17  24  16    19   8  11 
2021 12  2	   3   2   2     2   3   2     5   7   4     4   3   2     2   4   4     7   6   3     9   3   7     5   3   2 
2021 12  3	   3   1   3     4   1   7     1   4   4     7   2   5     4   5   4     7   6  11    29   8  31     4   2   2 
2021 12  4	   3   5   4     5   4   3     3   4   3     4   5   3     3   2   3     2   2   3     3  12   4     2   4   3