17 Dec 1998, 00:38:36 (UT) P=+9.389, B0=-1.15, L0=342.8, radius=976.7" obs radius = 871.7 (pixel), RMS=63.53 10^-4 I_c ***** Observed Sunspot Parameters ***** --------------------------------------------------------------- 10^-6 hemisphere -10^-2 I_c No. position cos(t) ap_area co_area darkness --------------------------------------------------------------- 1: S29.56 W39.07, 0.684, 42.72, 31.18, 643 2: S29.15 W35.89, 0.717, 11.72, 8.17, 139 3: S28.73 W40.38, 0.677, 101.78, 75.13, 1933 4: S27.44 W33.09, 0.752, 278.13, 184.79, 10672 5: S27.25 W44.00, 0.648, 82.09, 63.30, 1789 6: S26.13 W42.85, 0.666, 23.03, 17.27, 348 7: S26.31 W44.61, 0.646, 11.30, 8.74, 116 8: S25.14 W39.15, 0.710, 45.65, 32.14, 847 9: S26.29 W49.10, 0.595, 0.83, 0.70, 8 10: S24.73 W36.50, 0.738, 18.84, 12.76, 220 11: S17.05 W51.04, 0.606, 234.56, 193.28, 7003 12: S16.24 W57.24, 0.524, 203.99, 194.27, 5726 13: S15.99 W54.28, 0.566, 4.18, 3.69, 42 14: N23.91 E8.674, 0.895, 210.27, 117.42, 8184 Umbra only 15: S27.44 W33.07, 0.752, 86.28, 57.31, 6009 16: S17.09 W51.01, 0.607, 46.91, 38.64, 2701 17: S16.21 W57.15, 0.526, 33.09, 31.43, 1887 18: N23.89 E8.681, 0.895, 65.76, 36.71, 4785 --------------------------------------------------------------- * = False spots ---------------------------------------- 10^-6 hemisphere -10^-2 I_c Region ap_area co_area darkness North 210.27 117.42 8184 South 1058.91 825.48 29486 Whole 1269.18 942.91 37670 ---------------------------------------- ***** Relative Sunspot Numbers ***** ------------------------------------------ Region g f 10*g + f ------------------------------------------ North 1 2 12 South 2 16 36 Whole 3 18 48 ------------------------------------------ Center -1 -1 -11 Seeing -1