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Table 2

Magnetic flux and filling factors during cycle minimum.


End cycle 22 End cycle 23

Variable Timescale S (nb) t S (nb) t
B (FD) 1 yr 11.22 ± 0.04 (316) 1996.87 11.81 ± 0.02 (337) 2008.95
B (FD) 3 months 10.82 ± 0.08 (59) 1996.47 11.27 ± 0.05 (86) 2008.73
B (FD) 28 d 10.52 ± 0.20 (7) 1996.40 10.75 ± 0.01 (27) 2008.74
B (CD 1′ × 3′) 1 yr 8.29 ± 0.04 (318) 1996.91 8.44 ± 0.02 (338) 2008.94
B (CD 1′ × 3′) 3 months 8.12 ± 0.05 (84) 1996.65 8.17 ± 0.03 (87) 2008.71
B (CD 1′ × 3′) 28 d 7.90 ± 0.05 (25) 1997.22 7.98 ± 0.06 (24) 2008.77
B (CD 11 × 11pix) 1 yr 6.00 ± 0.02 (310) 1996.84 6.29 ± 0.02 (336) 2008.98
B (CD 11 × 11pix) 3 months 5.91 ± 0.06 (57) 1996.50 6.12 ± 0.04 (87) 2008.68
B (CD 11 × 11pix) 28 d 5.56 ± 0.06 (3) 1996.41 5.93 ± 0.06 (27) 2008.74
ff (FD) 1 yr 2103 ± 95 (318) 1996.62 589 ± 20 (352) 2008.86
ff (FD) 3 months 1689 ± 212 (84) 1996.74 425 ± 17 (89) 2008.61
ff (FD) 28 d 1085 ± 226 (26) 1996.81 346 ± 23 (7) 2009.64

Notes.The average magnetic field at cycle minimum is shown for the full disk (FD), the 1′ × 3′ box in the quietest position at disk center (CD), and for the 11 × 11 pixels box also in the quietest position at disk center. The filling factor ff (ppm of the solar disk) corresponds to the 100 G threshold. Each of these variables are shown for each minimum computed at three different timescales from the running means. The uncertainties are derived from the dispersion of the values (not computed if only one point inthe bin). The number of observing days in the bin is shown between parenthesis. The time t (in years) corresponds to the average over the observing days in the bin identified as the minimum. Values significantly lower than the other minimum at the 1σ wlevel are highlighted in bold.

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