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Table 1

Summary of 15 years of the MDI and five years (16−20) of the HMI data.

Data set Starting date n l n 1 l 1 n 2 l 2 n 3 l 3 n 4 l 4 n 5 l 5 n c l c
1 1996.05.01 187 98 128 134 123 124 122 142 143 126 132 134 85 180
2 1997.04.26 182 104 120 133 129 135 126 136 128 131 129 121 83 175
3 1998.04.21 168 114 129 125 113 134 128 130 − − − − − −
4 1999.04.16 160 111 132 127 134 133 127 135 127 135 128 127 86 164
5 2000.04.10 181 86 133 136 134 123 129 123 132 117 132 121 86 177
6 2001.04.05 177 108 127 126 124 147 133 113 132 127 122 140 76 191
7 2002.03.31 179 87 130 144 121 121 131 137 129 144 130 124 83 181
8 2003.03.26 179 103 125 140 119 144 134 133 116 124 131 111 79 176
9 2004.03.20 178 96 119 138 124 138 126 116 119 146 131 129 70 180
10 2005.03.15 178 106 131 134 129 135 128 127 128 118 124 132 75 180
11 2006.03.10 173 95 132 137 126 134 133 127 123 119 131 130 77 166
12 2007.03.05 177 106 137 130 125 121 130 132 124 139 126 123 80 175
13 2008.02.28 184 96 132 125 135 118 140 120 137 141 123 134 79 174
14 2009.02.22 183 91 140 135 131 122 127 141 126 136 125 118 70 172
15 2010.02.17 163 128 135 134 138 136 126 139 128 133 113 138 84 164
16 2010.04.30 149 131 119 132 115 139 125 123 120 157 109 144 74 173
17 2011.04.25 152 118 119 127 116 135 122 140 120 136 127 133 79 184
18 2012.04.19 152 110 115 144 116 131 117 137 114 130 108 161 70 196
19 2013.04.14 166 100 125 128 118 147 124 140 124 141 118 134 77 171
20 2014.04.09 173 103 119 149 122 149 114 138 126 125 119 142 75 180

Notes. The number of splitting frequencies available in each data set is given by n and n1 to n5 are the constituent 72-day time series. The minimum angular degree recovered is given by l in each set. nc and lc represent similar quantities for the common modes between each 360-day and the corresponding 72-day data sets. For details see Sect. 4.1.

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