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American Relative Sunspot Numbers for February 2002

DayMn. Raw Ras.d.       Mn. Rak  s.d.
1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

170

199

212

220

203

174

152

149

157

150

168

153

153

131

124

110

114

104

106

126

120

114

126

148

189

164

149

138

8.4

9.1

7.9

9.2

9.3

10.5

6.6

6.6

7.8

6.9

6.8

7.8

7.7

7.4

8.6

8.1

7.3

7.3

5.5

8

10.6

6.1

5.3

5.4

6.7

8.1

10.2

7.8

  128

143

170

165

159

128

109

113

118

117

125

115

114

98

95

85

90

80

79

91

81

86

95

115

143

126

115

109

3.5

3.9

3.5

3.9

3.8

4.6

3.2

3.9

4.1

3.1

3.2

3.7

2.9

3.5

4.1

3.3

3.4

3.2

2.4

2.9

5

3.3

2.4

2.9

4.7

4.8

4.4

4.5

Means:150.8  114.0 
No. of Observations: 918
No. of Observers: 71

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