Tartu        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	   5   4   4     6   3   6     6   5   6     5   4   5     7   6   7     7  10   7     7  10   7     7   4   4 
2021 12  2	   2   2   1     1   2   2     4   4   3     4   2   1     1   3   3     4   3   2     4   2   4     3   2   2 
2021 12  3	   3   1   2     2   1   4     1   3   3     5   2   4     3   4   3     4   4   8    18   4  16     3   1   1 
2021 12  4	   2   4   2     3   3   2     3   3   2     3   4   3     3   2   2     2   2   2     1   8   3     1   2   2