Table 2

Typical Variations
Observatory Niemegk
February 2024
 
Part 1:  ssc,  si,  b
 
 
 
Day
 
 
 
U. T.
Phenomenon
Nature              Quality
ssc, ssc*
si, si*
b, bp, bs, bps     A,B,C
Sharp movement of
ssc, ssc*, si and si*
Exact time        Sense
 h  m    s±s      X Y Z
 
b, bp, bs, bps
sense of the
chief movement
X    Y    Z
 
04
07
11
20
24
27
20:57
21:38
02:09
20:43
17:12
18:02
bp
bp
sc
bp
sc
bp
B
B
A
B
B
B
 
 
02  09  44  01   + - -
 
17  12  59  01   + - -
 
+    +    -
+    +    -
 
+    +    -
 
+    +    -
Part 2:  sfe
Day
Universal time of
begin                maximum                 end
Sense and maximum amplitude
X/nT          Y/nT          Z/nT
09
13:04
13:16
13:47
-15
-10
5

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Revised: Tue 05 Mar 2024