18 Apr 2000, 02:09:16 (UT) P=-25.80, B0=-5.33, L0=23.79, radius=957.2" obs radius = 855.3 (pixel), RMS=73.53 10^-4 I_c ***** Observed Sunspot Parameters ***** --------------------------------------------------------------- 10^-6 hemisphere -10^-2 I_c No. position cos(t) ap_area co_area darkness --------------------------------------------------------------- 1: S18.24 W80.81, 0.180, 3.91, 10.87, 44 2: S13.08 W35.99, 0.805, 31.32, 19.44, 630 3: S21.20 W13.17, 0.937, 698.32, 372.47, 35360 4: S20.81 W9.390, 0.951, 0.87, 0.45, 10 5: S21.07 W3.488, 0.960, 344.59, 179.33, 15028 6: N11.88 W59.01, 0.482, 93.54, 96.95, 2537 7: S16.90 E63.08, 0.458, 8.70, 9.49, 113 8: S13.46 E76.33, 0.250, 35.24, 70.36, 601 9: N13.90 E18.59, 0.893, 143.58, 80.32, 4123 10: N13.85 E20.93, 0.880, 19.14, 10.86, 306 11: N15.27 E20.65, 0.874, 140.53, 80.37, 2928 12: N16.10 E20.01, 0.873, 13.48, 7.72, 210 13: N22.48 E22.52, 0.814, 139.23, 85.49, 5374 14: N34.00 E5.285, 0.769, 66.13, 42.94, 2012 15: N32.97 E7.332, 0.777, 4.78, 3.07, 55 16: N33.58 E8.006, 0.769, 23.49, 15.25, 417 Umbra only 17: S21.14 W13.25, 0.937, 281.50, 150.15, 23172 18: S21.05 W3.534, 0.960, 114.86, 59.77, 8758 19: N11.89 W58.94, 0.483, 9.57, 9.90, 543 20: N13.85 E18.56, 0.894, 14.79, 8.27, 847 21: N22.47 E22.52, 0.814, 37.41, 22.97, 2724 22: N34.01 E5.237, 0.769, 10.87, 7.06, 638 --------------------------------------------------------------- * = False spots ---------------------------------------- 10^-6 hemisphere -10^-2 I_c Region ap_area co_area darkness North 643.94 423.01 17962 South 1122.98 662.44 51786 Whole 1766.92 1085.46 69748 ---------------------------------------- ***** Relative Sunspot Numbers ***** ------------------------------------------ Region g f 10*g + f ------------------------------------------ North 4 13 53 South 5 9 59 Whole 9 22 112 ------------------------------------------ Center -1 -1 -11 Seeing -1