20 Apr 2021, 01:09:15 (UT) P=-25.60, B0=-5.20, L0=283.2, radius=956.8" obs radius = 856.5 (pixel), RMS=113.7 10^-4 I_c ***** Observed Sunspot Parameters ***** --------------------------------------------------------------- 10^-6 hemisphere -10^-2 I_c No. position cos(t) ap_area co_area darkness --------------------------------------------------------------- 1: S26.75 E24.67, 0.848, 154.91, 91.25, 6122 2: S22.47 E17.20, 0.913, 41.65, 22.79, 1530 3: S23.92 E22.75, 0.876, 42.09, 24.02, 1255 4: S22.82 E22.18, 0.885, 37.31, 21.08, 1371 5: N17.08 W49.71, 0.588, 18.65, 15.84, 557 6: N16.55 W46.68, 0.629, 8.24, 6.55, 195 7: N18.64 W51.64, 0.556, 3.90, 3.50, 85 8: N18.98 W51.50, 0.556, 5.20, 4.67, 127 9: N18.86 W50.48, 0.570, 3.03, 2.66, 59 10: N18.59 W49.94, 0.578, 0.86, 0.75, 17 11: N18.87 W50.75, 0.566, 0.86, 0.76, 15 12: N13.22 W33.66, 0.786, 1.73, 1.10, 32 13: N17.90 W44.56, 0.647, 16.05, 12.40, 383 14: N18.55 W46.34, 0.622, 17.79, 14.28, 549 15: N18.10 W45.16, 0.639, 1.73, 1.35, 31 16: N18.47 W45.72, 0.630, 1.30, 1.03, 26 17: N18.57 W45.55, 0.632, 2.60, 2.05, 51 18: S17.09 E78.25, 0.220, 6.94, 15.74, 122 Umbra only 19: S26.97 E24.54, 0.848, 5.20, 3.06, 432 --------------------------------------------------------------- * = False spots ---------------------------------------- 10^-6 hemisphere -10^-2 I_c Region ap_area co_area darkness North 82.01 66.99 2127 South 282.93 174.90 10400 Whole 364.95 241.89 12527 ---------------------------------------- ***** Relative Sunspot Numbers ***** ------------------------------------------ Region g f 10*g + f ------------------------------------------ North 2 13 33 South 2 6 26 Whole 4 19 59 ------------------------------------------ Center 1 5 15 Seeing 3