18 Feb 1999, 00:26:55 (UT) P=-18.26, B0=-6.94, L0=233.3, radius=972.6" obs radius = 868.0 (pixel), RMS=65.98 10^-4 I_c ***** Observed Sunspot Parameters ***** --------------------------------------------------------------- 10^-6 hemisphere -10^-2 I_c No. position cos(t) ap_area co_area darkness --------------------------------------------------------------- 1: S30.53 W67.03, 0.394, 81.53, 103.23, 1361 2: S27.81 W75.73, 0.272, 54.49, 99.94, 800 3: S22.02 W36.13, 0.788, 1250.11, 792.72, 65133 4: S21.82 W41.19, 0.738, 66.32, 44.91, 1567 5: S16.77 W23.14, 0.908, 48.16, 26.49, 653 6: S16.81 W7.482, 0.977, 242.08, 123.87, 9758 7: N14.35 W49.16, 0.598, 501.48, 418.67, 17952 8: N18.13 W44.51, 0.635, 169.83, 133.71, 5503 9: N16.32 W37.44, 0.722, 75.20, 52.04, 1277 10: N15.84 W35.48, 0.744, 5.06, 3.40, 54 11: N18.88 W30.34, 0.771, 1.68, 1.09, 17 12: N20.07 W28.99, 0.774, 20.70, 13.37, 318 13: N21.74 W27.09, 0.776, 465.57, 299.93, 18724 14: N21.45 W25.00, 0.793, 17.32, 10.92, 249 15: N18.78 W0.977, 0.900, 266.16, 147.74, 9654 16: N19.89 E0.853, 0.892, 114.49, 64.15, 2571 17: N19.99 E3.027, 0.890, 19.43, 10.91, 267 18: N14.91 E55.90, 0.506, 199.83, 197.23, 6266 Umbra only 19: S21.81 W41.17, 0.738, 1.68, 1.14, 80 20: S22.03 W36.28, 0.787, 520.91, 330.92, 45469 21: S16.80 W7.481, 0.977, 81.53, 41.72, 5807 22: N14.03 W49.06, 0.601, 113.22, 94.09, 7871 23: N15.72 W49.86, 0.583, 17.32, 14.85, 924 24: N18.13 W44.54, 0.634, 38.02, 29.95, 2340 25: N21.92 W27.16, 0.774, 144.06, 93.04, 10392 26: N18.78 W1.326, 0.900, 50.27, 27.90, 3314 27: N18.78 W0.349, 0.900, 25.77, 14.30, 1528 28: N19.78 E0.800, 0.893, 5.91, 3.31, 301 29: N14.90 E55.96, 0.505, 42.67, 42.17, 2507 --------------------------------------------------------------- * = False spots ---------------------------------------- 10^-6 hemisphere -10^-2 I_c Region ap_area co_area darkness North 1856.79 1353.22 62852 South 1742.72 1191.20 79272 Whole 3599.52 2544.43 142124 ---------------------------------------- ***** Relative Sunspot Numbers ***** ------------------------------------------ Region g f 10*g + f ------------------------------------------ North 4 20 60 South 4 9 49 Whole 8 29 109 ------------------------------------------ Center -1 -1 -11 Seeing -1