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Table 4

Plasma properties at the inner penumbral boundaries.

Event Bmed σmed a(0) a(1) a(2) σfit
[G] [G] [G] [G] [deg] [G]

1U 2480 370 2500 110 99 240
2U 2480 430 2500 120 136 230
4U 2640 500 2660 210 126 290
5U 2010 380 1990 50 60 370
6U 2050 270 2050 10 277 270
7U 2450 360 2450 190 235 170
8U 1930 140 1940 30 305 140
9U 1990 260 2000 140 119 160
10U 2000 250 1990 110 121 160

Event γmed σmed a(0) a(1) a(2) σfit
[deg] [deg] [deg] [deg] [deg] [deg]

1U 38 7 38 2 113 5
2U 37 6 38 1 134 5
4U 38 8 38 4 95 5
5U 32 8 32 1 70 7
6U 33 5 33 0 45 5
7U 35 6 34 4 251 4
8U 30 9 29 5 339 6
9U 28 7 27 4 81 5
10U 28 7 28 3 75 4

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