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Table 1.

Polarity and characteristic timings of CH-CIR throughout different rotations.

Rotation Carrington HSS HSS CH CH Onset SI Trailing End
number rotation Year peak time polarity time polarity time time edge time time
rot1 2057 2007 160.8 157 NaN 158,8 160,4 162,7 163,2
rot2 2058 2007 185.4 181 NaN 184,4 184,9 190,3 190,7
rot3 2059 2007 213.8 207 210,0 210,3 216,8 217,3
rot4 2060 2007 239.8 235 237,4 237,8 NaN 243,9
rot5 2061 2007 267.3 262 263,4 263,9 NaN 270,5
rot6 2062 2007 293.0 289 291,0 291,4 NaN 295,5
rot7 2063 2007 318.4 316 316,7 317,2 322,5 323,3
rot8 2064 2007 345.3 343 343,0 344,8 NaN 351,0
rot9 2065 2008 7.5 4 4,9 5,3 NaN 12,2
rot10 2066 2008 34.5 30 31,5 31,7 NaN 38,5
rot11 2067 2008 61.3 58 58,6 59,7 NaN 65,0
rot12 2068 2008 88.4 86 86,0 86,5 93,7 94,0
rot13 2069 2008 114.8 112 113,9 114,3 NaN 121,6
rot14 2070 2008 142.6 139 140,0 140,6 NaN 149,0
rot15 2071 2008 169.1 165 166,6 166,7 NaN 171,8
rot16 2072 2008 196.3 193 193,1 193,6 NaN 202,5
rot17 2073 2008 222.8 220 222,0 222,3 229,5 229,8
rot18 2074 2008 251.3 246 247,0 247,4 NaN 256,8
rot19 2075 2008 276.9 273 274,6 274,8 282,7 284,3
rot20 2076 2008 303.7 301 302,2 302,9 309,5 311,0
rot21 2077 2008 331.9 327 330,0 330,2 336,4 337,5
rot22 2078 2008 358.5 355 357,0 358,0 365,0 365,5
rot23 2079 2009 19.9 15 18,2 19,0 NaN 22,5
rot24 2080 2009 46.4 42 NaN 44,8 45,3 NaN 50,2
rot25 2081 2009 73.1 69 70,9 72,2 78,1 79,0
rot26 2082 2009 101.8 96 98,8 99,1 NaN 105,0
rot27 2083 2009 128.2 124 NaN 126,0 126,6 132,5 133,0

Notes. Overview of all rotations of the recurring CIR and its associated CH, its polarity, and characteristic timings. Times are given in day of year (DOY). CH time marks the DOY of the passage over the central meridian.

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